Update the secp256k1 subtree to the latest upstream version
This commit is contained in:
Pieter Wuille
commit
99df276dae
1
src/secp256k1/.gitignore
vendored
1
src/secp256k1/.gitignore
vendored
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@ -1,5 +1,6 @@
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bench_inv
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bench_ecdh
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bench_ecmult
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bench_sign
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bench_verify
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bench_schnorr_verify
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@ -1,5 +1,5 @@
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language: c
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sudo: false
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os: linux
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addons:
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apt:
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packages: libgmp-dev
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@ -11,7 +11,7 @@ cache:
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- src/java/guava/
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env:
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global:
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- FIELD=auto BIGNUM=auto SCALAR=auto ENDOMORPHISM=no STATICPRECOMPUTATION=yes ASM=no BUILD=check EXTRAFLAGS= HOST= ECDH=no RECOVERY=no EXPERIMENTAL=no
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- FIELD=auto BIGNUM=auto SCALAR=auto ENDOMORPHISM=no STATICPRECOMPUTATION=yes ASM=no BUILD=check EXTRAFLAGS= HOST= ECDH=no RECOVERY=no EXPERIMENTAL=no JNI=no
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- GUAVA_URL=https://search.maven.org/remotecontent?filepath=com/google/guava/guava/18.0/guava-18.0.jar GUAVA_JAR=src/java/guava/guava-18.0.jar
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matrix:
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- SCALAR=32bit RECOVERY=yes
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@ -29,7 +29,7 @@ env:
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- BUILD=distcheck
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- EXTRAFLAGS=CPPFLAGS=-DDETERMINISTIC
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- EXTRAFLAGS=CFLAGS=-O0
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- BUILD=check-java ECDH=yes EXPERIMENTAL=yes
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- BUILD=check-java JNI=yes ECDH=yes EXPERIMENTAL=yes
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matrix:
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fast_finish: true
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include:
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@ -65,5 +65,4 @@ before_script: ./autogen.sh
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script:
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- if [ -n "$HOST" ]; then export USE_HOST="--host=$HOST"; fi
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- if [ "x$HOST" = "xi686-linux-gnu" ]; then export CC="$CC -m32"; fi
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- ./configure --enable-experimental=$EXPERIMENTAL --enable-endomorphism=$ENDOMORPHISM --with-field=$FIELD --with-bignum=$BIGNUM --with-scalar=$SCALAR --enable-ecmult-static-precomputation=$STATICPRECOMPUTATION --enable-module-ecdh=$ECDH --enable-module-recovery=$RECOVERY $EXTRAFLAGS $USE_HOST && make -j2 $BUILD
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os: linux
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- ./configure --enable-experimental=$EXPERIMENTAL --enable-endomorphism=$ENDOMORPHISM --with-field=$FIELD --with-bignum=$BIGNUM --with-scalar=$SCALAR --enable-ecmult-static-precomputation=$STATICPRECOMPUTATION --enable-module-ecdh=$ECDH --enable-module-recovery=$RECOVERY --enable-jni=$JNI $EXTRAFLAGS $USE_HOST && make -j2 $BUILD
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@ -42,6 +42,8 @@ noinst_HEADERS += src/field_5x52_asm_impl.h
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noinst_HEADERS += src/java/org_bitcoin_NativeSecp256k1.h
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noinst_HEADERS += src/java/org_bitcoin_Secp256k1Context.h
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noinst_HEADERS += src/util.h
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noinst_HEADERS += src/scratch.h
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noinst_HEADERS += src/scratch_impl.h
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noinst_HEADERS += src/testrand.h
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noinst_HEADERS += src/testrand_impl.h
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noinst_HEADERS += src/hash.h
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@ -79,7 +81,7 @@ libsecp256k1_jni_la_CPPFLAGS = -DSECP256K1_BUILD $(JNI_INCLUDES)
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noinst_PROGRAMS =
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if USE_BENCHMARK
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noinst_PROGRAMS += bench_verify bench_sign bench_internal
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noinst_PROGRAMS += bench_verify bench_sign bench_internal bench_ecmult
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bench_verify_SOURCES = src/bench_verify.c
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bench_verify_LDADD = libsecp256k1.la $(SECP_LIBS) $(SECP_TEST_LIBS) $(COMMON_LIB)
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bench_sign_SOURCES = src/bench_sign.c
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@ -87,6 +89,9 @@ bench_sign_LDADD = libsecp256k1.la $(SECP_LIBS) $(SECP_TEST_LIBS) $(COMMON_LIB)
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bench_internal_SOURCES = src/bench_internal.c
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bench_internal_LDADD = $(SECP_LIBS) $(COMMON_LIB)
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bench_internal_CPPFLAGS = -DSECP256K1_BUILD $(SECP_INCLUDES)
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bench_ecmult_SOURCES = src/bench_ecmult.c
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bench_ecmult_LDADD = $(SECP_LIBS) $(COMMON_LIB)
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bench_ecmult_CPPFLAGS = -DSECP256K1_BUILD $(SECP_INCLUDES)
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endif
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TESTS =
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@ -109,7 +114,7 @@ exhaustive_tests_CPPFLAGS = -DSECP256K1_BUILD -I$(top_srcdir)/src $(SECP_INCLUDE
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if !ENABLE_COVERAGE
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exhaustive_tests_CPPFLAGS += -DVERIFY
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endif
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exhaustive_tests_LDADD = $(SECP_LIBS)
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exhaustive_tests_LDADD = $(SECP_LIBS) $(COMMON_LIB)
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exhaustive_tests_LDFLAGS = -static
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TESTS += exhaustive_tests
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endif
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@ -146,7 +151,6 @@ endif
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if USE_ECMULT_STATIC_PRECOMPUTATION
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CPPFLAGS_FOR_BUILD +=-I$(top_srcdir)
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||||
CFLAGS_FOR_BUILD += -Wall -Wextra -Wno-unused-function
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gen_context_OBJECTS = gen_context.o
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gen_context_BIN = gen_context$(BUILD_EXEEXT)
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@ -154,11 +158,12 @@ gen_%.o: src/gen_%.c
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$(CC_FOR_BUILD) $(CPPFLAGS_FOR_BUILD) $(CFLAGS_FOR_BUILD) -c $< -o $@
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$(gen_context_BIN): $(gen_context_OBJECTS)
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||||
$(CC_FOR_BUILD) $^ -o $@
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$(CC_FOR_BUILD) $(CFLAGS_FOR_BUILD) $(LDFLAGS_FOR_BUILD) $^ -o $@
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||||
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$(libsecp256k1_la_OBJECTS): src/ecmult_static_context.h
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$(tests_OBJECTS): src/ecmult_static_context.h
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$(bench_internal_OBJECTS): src/ecmult_static_context.h
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$(bench_ecmult_OBJECTS): src/ecmult_static_context.h
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src/ecmult_static_context.h: $(gen_context_BIN)
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./$(gen_context_BIN)
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@ -1,5 +1,5 @@
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# ===========================================================================
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# http://www.gnu.org/software/autoconf-archive/ax_jni_include_dir.html
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||||
# https://www.gnu.org/software/autoconf-archive/ax_jni_include_dir.html
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# ===========================================================================
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#
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# SYNOPSIS
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@ -44,7 +44,7 @@
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 10
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#serial 14
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AU_ALIAS([AC_JNI_INCLUDE_DIR], [AX_JNI_INCLUDE_DIR])
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AC_DEFUN([AX_JNI_INCLUDE_DIR],[
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@ -66,9 +66,17 @@ else
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fi
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||||
|
||||
case "$host_os" in
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||||
darwin*) _JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'`
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||||
_JINC="$_JTOPDIR/Headers";;
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||||
*) _JINC="$_JTOPDIR/include";;
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||||
darwin*) # Apple Java headers are inside the Xcode bundle.
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||||
macos_version=$(sw_vers -productVersion | sed -n -e 's/^@<:@0-9@:>@*.\(@<:@0-9@:>@*\).@<:@0-9@:>@*/\1/p')
|
||||
if @<:@ "$macos_version" -gt "7" @:>@; then
|
||||
_JTOPDIR="$(xcrun --show-sdk-path)/System/Library/Frameworks/JavaVM.framework"
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||||
_JINC="$_JTOPDIR/Headers"
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||||
else
|
||||
_JTOPDIR="/System/Library/Frameworks/JavaVM.framework"
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||||
_JINC="$_JTOPDIR/Headers"
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||||
fi
|
||||
;;
|
||||
*) _JINC="$_JTOPDIR/include";;
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||||
esac
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_AS_ECHO_LOG([_JTOPDIR=$_JTOPDIR])
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_AS_ECHO_LOG([_JINC=$_JINC])
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@ -76,30 +84,27 @@ _AS_ECHO_LOG([_JINC=$_JINC])
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|||
# On Mac OS X 10.6.4, jni.h is a symlink:
|
||||
# /System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/jni.h
|
||||
# -> ../../CurrentJDK/Headers/jni.h.
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||||
|
||||
AC_CACHE_CHECK(jni headers, ac_cv_jni_header_path,
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||||
[
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||||
if test -f "$_JINC/jni.h"; then
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ac_cv_jni_header_path="$_JINC"
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JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $ac_cv_jni_header_path"
|
||||
else
|
||||
_JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'`
|
||||
if test -f "$_JTOPDIR/include/jni.h"; then
|
||||
ac_cv_jni_header_path="$_JTOPDIR/include"
|
||||
if test -f "$_JINC/jni.h"; then
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ac_cv_jni_header_path="$_JINC"
|
||||
JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $ac_cv_jni_header_path"
|
||||
else
|
||||
ac_cv_jni_header_path=none
|
||||
_JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'`
|
||||
if test -f "$_JTOPDIR/include/jni.h"; then
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ac_cv_jni_header_path="$_JTOPDIR/include"
|
||||
JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $ac_cv_jni_header_path"
|
||||
else
|
||||
ac_cv_jni_header_path=none
|
||||
fi
|
||||
fi
|
||||
fi
|
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])
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||||
|
||||
|
||||
|
||||
# get the likely subdirectories for system specific java includes
|
||||
case "$host_os" in
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bsdi*) _JNI_INC_SUBDIRS="bsdos";;
|
||||
darwin*) _JNI_INC_SUBDIRS="darwin";;
|
||||
freebsd*) _JNI_INC_SUBDIRS="freebsd";;
|
||||
darwin*) _JNI_INC_SUBDIRS="darwin";;
|
||||
linux*) _JNI_INC_SUBDIRS="linux genunix";;
|
||||
osf*) _JNI_INC_SUBDIRS="alpha";;
|
||||
solaris*) _JNI_INC_SUBDIRS="solaris";;
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@ -112,9 +117,9 @@ if test "x$ac_cv_jni_header_path" != "xnone"; then
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# add any subdirectories that are present
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for JINCSUBDIR in $_JNI_INC_SUBDIRS
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||||
do
|
||||
if test -d "$_JTOPDIR/include/$JINCSUBDIR"; then
|
||||
JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include/$JINCSUBDIR"
|
||||
fi
|
||||
if test -d "$_JTOPDIR/include/$JINCSUBDIR"; then
|
||||
JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include/$JINCSUBDIR"
|
||||
fi
|
||||
done
|
||||
fi
|
||||
])
|
||||
|
|
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@ -48,7 +48,6 @@ if test x"$has_libcrypto" = x"yes" && test x"$has_openssl_ec" = x; then
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EC_KEY_free(eckey);
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||||
ECDSA_SIG *sig_openssl;
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||||
sig_openssl = ECDSA_SIG_new();
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||||
(void)sig_openssl->r;
|
||||
ECDSA_SIG_free(sig_openssl);
|
||||
]])],[has_openssl_ec=yes],[has_openssl_ec=no])
|
||||
AC_MSG_RESULT([$has_openssl_ec])
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||||
|
|
|
|||
|
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@ -85,9 +85,9 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
|
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])
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||||
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||||
AC_ARG_ENABLE(benchmark,
|
||||
AS_HELP_STRING([--enable-benchmark],[compile benchmark (default is no)]),
|
||||
AS_HELP_STRING([--enable-benchmark],[compile benchmark (default is yes)]),
|
||||
[use_benchmark=$enableval],
|
||||
[use_benchmark=no])
|
||||
[use_benchmark=yes])
|
||||
|
||||
AC_ARG_ENABLE(coverage,
|
||||
AS_HELP_STRING([--enable-coverage],[enable compiler flags to support kcov coverage analysis]),
|
||||
|
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@ -135,9 +135,9 @@ AC_ARG_ENABLE(module_recovery,
|
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[enable_module_recovery=no])
|
||||
|
||||
AC_ARG_ENABLE(jni,
|
||||
AS_HELP_STRING([--enable-jni],[enable libsecp256k1_jni (default is auto)]),
|
||||
AS_HELP_STRING([--enable-jni],[enable libsecp256k1_jni (default is no)]),
|
||||
[use_jni=$enableval],
|
||||
[use_jni=auto])
|
||||
[use_jni=no])
|
||||
|
||||
AC_ARG_WITH([field], [AS_HELP_STRING([--with-field=64bit|32bit|auto],
|
||||
[Specify Field Implementation. Default is auto])],[req_field=$withval], [req_field=auto])
|
||||
|
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@ -153,12 +153,6 @@ AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|arm|no|auto]
|
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|
||||
AC_CHECK_TYPES([__int128])
|
||||
|
||||
AC_MSG_CHECKING([for __builtin_expect])
|
||||
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[void myfunc() {__builtin_expect(0,0);}]])],
|
||||
[ AC_MSG_RESULT([yes]);AC_DEFINE(HAVE_BUILTIN_EXPECT,1,[Define this symbol if __builtin_expect is available]) ],
|
||||
[ AC_MSG_RESULT([no])
|
||||
])
|
||||
|
||||
if test x"$enable_coverage" = x"yes"; then
|
||||
AC_DEFINE(COVERAGE, 1, [Define this symbol to compile out all VERIFY code])
|
||||
CFLAGS="$CFLAGS -O0 --coverage"
|
||||
|
|
@ -168,27 +162,54 @@ else
|
|||
fi
|
||||
|
||||
if test x"$use_ecmult_static_precomputation" != x"no"; then
|
||||
# Temporarily switch to an environment for the native compiler
|
||||
save_cross_compiling=$cross_compiling
|
||||
cross_compiling=no
|
||||
TEMP_CC="$CC"
|
||||
SAVE_CC="$CC"
|
||||
CC="$CC_FOR_BUILD"
|
||||
AC_MSG_CHECKING([native compiler: ${CC_FOR_BUILD}])
|
||||
SAVE_CFLAGS="$CFLAGS"
|
||||
CFLAGS="$CFLAGS_FOR_BUILD"
|
||||
SAVE_CPPFLAGS="$CPPFLAGS"
|
||||
CPPFLAGS="$CPPFLAGS_FOR_BUILD"
|
||||
SAVE_LDFLAGS="$LDFLAGS"
|
||||
LDFLAGS="$LDFLAGS_FOR_BUILD"
|
||||
|
||||
warn_CFLAGS_FOR_BUILD="-Wall -Wextra -Wno-unused-function"
|
||||
saved_CFLAGS="$CFLAGS"
|
||||
CFLAGS="$CFLAGS $warn_CFLAGS_FOR_BUILD"
|
||||
AC_MSG_CHECKING([if native ${CC_FOR_BUILD} supports ${warn_CFLAGS_FOR_BUILD}])
|
||||
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
|
||||
[ AC_MSG_RESULT([yes]) ],
|
||||
[ AC_MSG_RESULT([no])
|
||||
CFLAGS="$saved_CFLAGS"
|
||||
])
|
||||
|
||||
AC_MSG_CHECKING([for working native compiler: ${CC_FOR_BUILD}])
|
||||
AC_RUN_IFELSE(
|
||||
[AC_LANG_PROGRAM([], [return 0])],
|
||||
[AC_LANG_PROGRAM([], [])],
|
||||
[working_native_cc=yes],
|
||||
[working_native_cc=no],[dnl])
|
||||
CC="$TEMP_CC"
|
||||
|
||||
CFLAGS_FOR_BUILD="$CFLAGS"
|
||||
|
||||
# Restore the environment
|
||||
cross_compiling=$save_cross_compiling
|
||||
CC="$SAVE_CC"
|
||||
CFLAGS="$SAVE_CFLAGS"
|
||||
CPPFLAGS="$SAVE_CPPFLAGS"
|
||||
LDFLAGS="$SAVE_LDFLAGS"
|
||||
|
||||
if test x"$working_native_cc" = x"no"; then
|
||||
AC_MSG_RESULT([no])
|
||||
set_precomp=no
|
||||
m4_define([please_set_for_build], [Please set CC_FOR_BUILD, CFLAGS_FOR_BUILD, CPPFLAGS_FOR_BUILD, and/or LDFLAGS_FOR_BUILD.])
|
||||
if test x"$use_ecmult_static_precomputation" = x"yes"; then
|
||||
AC_MSG_ERROR([${CC_FOR_BUILD} does not produce working binaries. Please set CC_FOR_BUILD])
|
||||
AC_MSG_ERROR([native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
|
||||
else
|
||||
AC_MSG_RESULT([${CC_FOR_BUILD} does not produce working binaries. Please set CC_FOR_BUILD])
|
||||
AC_MSG_WARN([Disabling statically generated ecmult table because the native compiler ${CC_FOR_BUILD} does not produce working binaries. please_set_for_build])
|
||||
fi
|
||||
else
|
||||
AC_MSG_RESULT([ok])
|
||||
AC_MSG_RESULT([yes])
|
||||
set_precomp=yes
|
||||
fi
|
||||
else
|
||||
|
|
@ -441,17 +462,6 @@ if test x"$use_external_asm" = x"yes"; then
|
|||
AC_DEFINE(USE_EXTERNAL_ASM, 1, [Define this symbol if an external (non-inline) assembly implementation is used])
|
||||
fi
|
||||
|
||||
AC_MSG_NOTICE([Using static precomputation: $set_precomp])
|
||||
AC_MSG_NOTICE([Using assembly optimizations: $set_asm])
|
||||
AC_MSG_NOTICE([Using field implementation: $set_field])
|
||||
AC_MSG_NOTICE([Using bignum implementation: $set_bignum])
|
||||
AC_MSG_NOTICE([Using scalar implementation: $set_scalar])
|
||||
AC_MSG_NOTICE([Using endomorphism optimizations: $use_endomorphism])
|
||||
AC_MSG_NOTICE([Building for coverage analysis: $enable_coverage])
|
||||
AC_MSG_NOTICE([Building ECDH module: $enable_module_ecdh])
|
||||
AC_MSG_NOTICE([Building ECDSA pubkey recovery module: $enable_module_recovery])
|
||||
AC_MSG_NOTICE([Using jni: $use_jni])
|
||||
|
||||
if test x"$enable_experimental" = x"yes"; then
|
||||
AC_MSG_NOTICE([******])
|
||||
AC_MSG_NOTICE([WARNING: experimental build])
|
||||
|
|
@ -481,7 +491,7 @@ AM_CONDITIONAL([USE_BENCHMARK], [test x"$use_benchmark" = x"yes"])
|
|||
AM_CONDITIONAL([USE_ECMULT_STATIC_PRECOMPUTATION], [test x"$set_precomp" = x"yes"])
|
||||
AM_CONDITIONAL([ENABLE_MODULE_ECDH], [test x"$enable_module_ecdh" = x"yes"])
|
||||
AM_CONDITIONAL([ENABLE_MODULE_RECOVERY], [test x"$enable_module_recovery" = x"yes"])
|
||||
AM_CONDITIONAL([USE_JNI], [test x"$use_jni" == x"yes"])
|
||||
AM_CONDITIONAL([USE_JNI], [test x"$use_jni" = x"yes"])
|
||||
AM_CONDITIONAL([USE_EXTERNAL_ASM], [test x"$use_external_asm" = x"yes"])
|
||||
AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm"])
|
||||
|
||||
|
|
@ -491,3 +501,24 @@ unset PKG_CONFIG_PATH
|
|||
PKG_CONFIG_PATH="$PKGCONFIG_PATH_TEMP"
|
||||
|
||||
AC_OUTPUT
|
||||
|
||||
echo
|
||||
echo "Build Options:"
|
||||
echo " with endomorphism = $use_endomorphism"
|
||||
echo " with ecmult precomp = $set_precomp"
|
||||
echo " with jni = $use_jni"
|
||||
echo " with benchmarks = $use_benchmark"
|
||||
echo " with coverage = $enable_coverage"
|
||||
echo " module ecdh = $enable_module_ecdh"
|
||||
echo " module recovery = $enable_module_recovery"
|
||||
echo
|
||||
echo " asm = $set_asm"
|
||||
echo " bignum = $set_bignum"
|
||||
echo " field = $set_field"
|
||||
echo " scalar = $set_scalar"
|
||||
echo
|
||||
echo " CC = $CC"
|
||||
echo " CFLAGS = $CFLAGS"
|
||||
echo " CPPFLAGS = $CPPFLAGS"
|
||||
echo " LDFLAGS = $LDFLAGS"
|
||||
echo
|
||||
|
|
|
|||
|
|
@ -42,6 +42,19 @@ extern "C" {
|
|||
*/
|
||||
typedef struct secp256k1_context_struct secp256k1_context;
|
||||
|
||||
/** Opaque data structure that holds rewriteable "scratch space"
|
||||
*
|
||||
* The purpose of this structure is to replace dynamic memory allocations,
|
||||
* because we target architectures where this may not be available. It is
|
||||
* essentially a resizable (within specified parameters) block of bytes,
|
||||
* which is initially created either by memory allocation or TODO as a pointer
|
||||
* into some fixed rewritable space.
|
||||
*
|
||||
* Unlike the context object, this cannot safely be shared between threads
|
||||
* without additional synchronization logic.
|
||||
*/
|
||||
typedef struct secp256k1_scratch_space_struct secp256k1_scratch_space;
|
||||
|
||||
/** Opaque data structure that holds a parsed and valid public key.
|
||||
*
|
||||
* The exact representation of data inside is implementation defined and not
|
||||
|
|
@ -166,6 +179,13 @@ typedef int (*secp256k1_nonce_function)(
|
|||
#define SECP256K1_TAG_PUBKEY_HYBRID_EVEN 0x06
|
||||
#define SECP256K1_TAG_PUBKEY_HYBRID_ODD 0x07
|
||||
|
||||
/** A simple secp256k1 context object with no precomputed tables. These are useful for
|
||||
* type serialization/parsing functions which require a context object to maintain
|
||||
* API consistency, but currently do not require expensive precomputations or dynamic
|
||||
* allocations.
|
||||
*/
|
||||
SECP256K1_API extern const secp256k1_context *secp256k1_context_no_precomp;
|
||||
|
||||
/** Create a secp256k1 context object.
|
||||
*
|
||||
* Returns: a newly created context object.
|
||||
|
|
@ -243,6 +263,26 @@ SECP256K1_API void secp256k1_context_set_error_callback(
|
|||
const void* data
|
||||
) SECP256K1_ARG_NONNULL(1);
|
||||
|
||||
/** Create a secp256k1 scratch space object.
|
||||
*
|
||||
* Returns: a newly created scratch space.
|
||||
* Args: ctx: an existing context object (cannot be NULL)
|
||||
* In: max_size: maximum amount of memory to allocate
|
||||
*/
|
||||
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT secp256k1_scratch_space* secp256k1_scratch_space_create(
|
||||
const secp256k1_context* ctx,
|
||||
size_t max_size
|
||||
) SECP256K1_ARG_NONNULL(1);
|
||||
|
||||
/** Destroy a secp256k1 scratch space.
|
||||
*
|
||||
* The pointer may not be used afterwards.
|
||||
* Args: scratch: space to destroy
|
||||
*/
|
||||
SECP256K1_API void secp256k1_scratch_space_destroy(
|
||||
secp256k1_scratch_space* scratch
|
||||
);
|
||||
|
||||
/** Parse a variable-length public key into the pubkey object.
|
||||
*
|
||||
* Returns: 1 if the public key was fully valid.
|
||||
|
|
@ -498,7 +538,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_create(
|
|||
*
|
||||
* Returns: 1 always
|
||||
* Args: ctx: pointer to a context object
|
||||
* In/Out: pubkey: pointer to the public key to be negated (cannot be NULL)
|
||||
* In/Out: seckey: pointer to the 32-byte private key to be negated (cannot be NULL)
|
||||
*/
|
||||
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_privkey_negate(
|
||||
const secp256k1_context* ctx,
|
||||
|
|
@ -575,7 +615,7 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_mul(
|
|||
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3);
|
||||
|
||||
/** Updates the context randomization to protect against side-channel leakage.
|
||||
* Returns: 1: randomization successfully updated
|
||||
* Returns: 1: randomization successfully updated or nothing to randomize
|
||||
* 0: error
|
||||
* Args: ctx: pointer to a context object (cannot be NULL)
|
||||
* In: seed32: pointer to a 32-byte random seed (NULL resets to initial state)
|
||||
|
|
@ -590,6 +630,11 @@ SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ec_pubkey_tweak_mul(
|
|||
* that it does not affect function results, but shields against attacks which
|
||||
* rely on any input-dependent behaviour.
|
||||
*
|
||||
* This function has currently an effect only on contexts initialized for signing
|
||||
* because randomization is currently used only for signing. However, this is not
|
||||
* guaranteed and may change in the future. It is safe to call this function on
|
||||
* contexts not initialized for signing; then it will have no effect and return 1.
|
||||
*
|
||||
* You should call this after secp256k1_context_create or
|
||||
* secp256k1_context_clone, and may call this repeatedly afterwards.
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -7,21 +7,45 @@
|
|||
extern "C" {
|
||||
#endif
|
||||
|
||||
/** A pointer to a function that applies hash function to a point
|
||||
*
|
||||
* Returns: 1 if a point was successfully hashed. 0 will cause ecdh to fail
|
||||
* Out: output: pointer to an array to be filled by the function
|
||||
* In: x: pointer to a 32-byte x coordinate
|
||||
* y: pointer to a 32-byte y coordinate
|
||||
* data: Arbitrary data pointer that is passed through
|
||||
*/
|
||||
typedef int (*secp256k1_ecdh_hash_function)(
|
||||
unsigned char *output,
|
||||
const unsigned char *x,
|
||||
const unsigned char *y,
|
||||
void *data
|
||||
);
|
||||
|
||||
/** An implementation of SHA256 hash function that applies to compressed public key. */
|
||||
SECP256K1_API extern const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_sha256;
|
||||
|
||||
/** A default ecdh hash function (currently equal to secp256k1_ecdh_hash_function_sha256). */
|
||||
SECP256K1_API extern const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_default;
|
||||
|
||||
/** Compute an EC Diffie-Hellman secret in constant time
|
||||
* Returns: 1: exponentiation was successful
|
||||
* 0: scalar was invalid (zero or overflow)
|
||||
* Args: ctx: pointer to a context object (cannot be NULL)
|
||||
* Out: result: a 32-byte array which will be populated by an ECDH
|
||||
* secret computed from the point and scalar
|
||||
* Out: output: pointer to an array to be filled by the function
|
||||
* In: pubkey: a pointer to a secp256k1_pubkey containing an
|
||||
* initialized public key
|
||||
* privkey: a 32-byte scalar with which to multiply the point
|
||||
* hashfp: pointer to a hash function. If NULL, secp256k1_ecdh_hash_function_sha256 is used
|
||||
* data: Arbitrary data pointer that is passed through
|
||||
*/
|
||||
SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdh(
|
||||
const secp256k1_context* ctx,
|
||||
unsigned char *result,
|
||||
unsigned char *output,
|
||||
const secp256k1_pubkey *pubkey,
|
||||
const unsigned char *privkey
|
||||
const unsigned char *privkey,
|
||||
secp256k1_ecdh_hash_function hashfp,
|
||||
void *data
|
||||
) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4);
|
||||
|
||||
#ifdef __cplusplus
|
||||
|
|
|
|||
|
|
@ -8,6 +8,6 @@ Description: Optimized C library for EC operations on curve secp256k1
|
|||
URL: https://github.com/bitcoin-core/secp256k1
|
||||
Version: @PACKAGE_VERSION@
|
||||
Cflags: -I${includedir}
|
||||
Libs.private: @SECP_LIBS@
|
||||
Libs: -L${libdir} -lsecp256k1
|
||||
Libs.private: @SECP_LIBS@
|
||||
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@
|
|||
#define SECP256K1_BENCH_H
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <math.h>
|
||||
#include "sys/time.h"
|
||||
|
||||
|
|
@ -63,4 +64,19 @@ void run_benchmark(char *name, void (*benchmark)(void*), void (*setup)(void*), v
|
|||
printf("us\n");
|
||||
}
|
||||
|
||||
int have_flag(int argc, char** argv, char *flag) {
|
||||
char** argm = argv + argc;
|
||||
argv++;
|
||||
if (argv == argm) {
|
||||
return 1;
|
||||
}
|
||||
while (argv != NULL && argv != argm) {
|
||||
if (strcmp(*argv, flag) == 0) {
|
||||
return 1;
|
||||
}
|
||||
argv++;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* SECP256K1_BENCH_H */
|
||||
|
|
|
|||
|
|
@ -15,11 +15,11 @@ typedef struct {
|
|||
secp256k1_context *ctx;
|
||||
secp256k1_pubkey point;
|
||||
unsigned char scalar[32];
|
||||
} bench_ecdh_t;
|
||||
} bench_ecdh_data;
|
||||
|
||||
static void bench_ecdh_setup(void* arg) {
|
||||
int i;
|
||||
bench_ecdh_t *data = (bench_ecdh_t*)arg;
|
||||
bench_ecdh_data *data = (bench_ecdh_data*)arg;
|
||||
const unsigned char point[] = {
|
||||
0x03,
|
||||
0x54, 0x94, 0xc1, 0x5d, 0x32, 0x09, 0x97, 0x06,
|
||||
|
|
@ -39,15 +39,15 @@ static void bench_ecdh_setup(void* arg) {
|
|||
static void bench_ecdh(void* arg) {
|
||||
int i;
|
||||
unsigned char res[32];
|
||||
bench_ecdh_t *data = (bench_ecdh_t*)arg;
|
||||
bench_ecdh_data *data = (bench_ecdh_data*)arg;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
CHECK(secp256k1_ecdh(data->ctx, res, &data->point, data->scalar) == 1);
|
||||
CHECK(secp256k1_ecdh(data->ctx, res, &data->point, data->scalar, NULL, NULL) == 1);
|
||||
}
|
||||
}
|
||||
|
||||
int main(void) {
|
||||
bench_ecdh_t data;
|
||||
bench_ecdh_data data;
|
||||
|
||||
run_benchmark("ecdh", bench_ecdh, bench_ecdh_setup, NULL, &data, 10, 20000);
|
||||
return 0;
|
||||
|
|
|
|||
207
src/secp256k1/src/bench_ecmult.c
Normal file
207
src/secp256k1/src/bench_ecmult.c
Normal file
|
|
@ -0,0 +1,207 @@
|
|||
/**********************************************************************
|
||||
* Copyright (c) 2017 Pieter Wuille *
|
||||
* Distributed under the MIT software license, see the accompanying *
|
||||
* file COPYING or http://www.opensource.org/licenses/mit-license.php.*
|
||||
**********************************************************************/
|
||||
#include <stdio.h>
|
||||
|
||||
#include "include/secp256k1.h"
|
||||
|
||||
#include "util.h"
|
||||
#include "hash_impl.h"
|
||||
#include "num_impl.h"
|
||||
#include "field_impl.h"
|
||||
#include "group_impl.h"
|
||||
#include "scalar_impl.h"
|
||||
#include "ecmult_impl.h"
|
||||
#include "bench.h"
|
||||
#include "secp256k1.c"
|
||||
|
||||
#define POINTS 32768
|
||||
#define ITERS 10000
|
||||
|
||||
typedef struct {
|
||||
/* Setup once in advance */
|
||||
secp256k1_context* ctx;
|
||||
secp256k1_scratch_space* scratch;
|
||||
secp256k1_scalar* scalars;
|
||||
secp256k1_ge* pubkeys;
|
||||
secp256k1_scalar* seckeys;
|
||||
secp256k1_gej* expected_output;
|
||||
secp256k1_ecmult_multi_func ecmult_multi;
|
||||
|
||||
/* Changes per test */
|
||||
size_t count;
|
||||
int includes_g;
|
||||
|
||||
/* Changes per test iteration */
|
||||
size_t offset1;
|
||||
size_t offset2;
|
||||
|
||||
/* Test output. */
|
||||
secp256k1_gej* output;
|
||||
} bench_data;
|
||||
|
||||
static int bench_callback(secp256k1_scalar* sc, secp256k1_ge* ge, size_t idx, void* arg) {
|
||||
bench_data* data = (bench_data*)arg;
|
||||
if (data->includes_g) ++idx;
|
||||
if (idx == 0) {
|
||||
*sc = data->scalars[data->offset1];
|
||||
*ge = secp256k1_ge_const_g;
|
||||
} else {
|
||||
*sc = data->scalars[(data->offset1 + idx) % POINTS];
|
||||
*ge = data->pubkeys[(data->offset2 + idx - 1) % POINTS];
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void bench_ecmult(void* arg) {
|
||||
bench_data* data = (bench_data*)arg;
|
||||
|
||||
size_t count = data->count;
|
||||
int includes_g = data->includes_g;
|
||||
size_t iters = 1 + ITERS / count;
|
||||
size_t iter;
|
||||
|
||||
for (iter = 0; iter < iters; ++iter) {
|
||||
data->ecmult_multi(&data->ctx->ecmult_ctx, data->scratch, &data->output[iter], data->includes_g ? &data->scalars[data->offset1] : NULL, bench_callback, arg, count - includes_g);
|
||||
data->offset1 = (data->offset1 + count) % POINTS;
|
||||
data->offset2 = (data->offset2 + count - 1) % POINTS;
|
||||
}
|
||||
}
|
||||
|
||||
static void bench_ecmult_setup(void* arg) {
|
||||
bench_data* data = (bench_data*)arg;
|
||||
data->offset1 = (data->count * 0x537b7f6f + 0x8f66a481) % POINTS;
|
||||
data->offset2 = (data->count * 0x7f6f537b + 0x6a1a8f49) % POINTS;
|
||||
}
|
||||
|
||||
static void bench_ecmult_teardown(void* arg) {
|
||||
bench_data* data = (bench_data*)arg;
|
||||
size_t iters = 1 + ITERS / data->count;
|
||||
size_t iter;
|
||||
/* Verify the results in teardown, to avoid doing comparisons while benchmarking. */
|
||||
for (iter = 0; iter < iters; ++iter) {
|
||||
secp256k1_gej tmp;
|
||||
secp256k1_gej_add_var(&tmp, &data->output[iter], &data->expected_output[iter], NULL);
|
||||
CHECK(secp256k1_gej_is_infinity(&tmp));
|
||||
}
|
||||
}
|
||||
|
||||
static void generate_scalar(uint32_t num, secp256k1_scalar* scalar) {
|
||||
secp256k1_sha256 sha256;
|
||||
unsigned char c[11] = {'e', 'c', 'm', 'u', 'l', 't', 0, 0, 0, 0};
|
||||
unsigned char buf[32];
|
||||
int overflow = 0;
|
||||
c[6] = num;
|
||||
c[7] = num >> 8;
|
||||
c[8] = num >> 16;
|
||||
c[9] = num >> 24;
|
||||
secp256k1_sha256_initialize(&sha256);
|
||||
secp256k1_sha256_write(&sha256, c, sizeof(c));
|
||||
secp256k1_sha256_finalize(&sha256, buf);
|
||||
secp256k1_scalar_set_b32(scalar, buf, &overflow);
|
||||
CHECK(!overflow);
|
||||
}
|
||||
|
||||
static void run_test(bench_data* data, size_t count, int includes_g) {
|
||||
char str[32];
|
||||
static const secp256k1_scalar zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0);
|
||||
size_t iters = 1 + ITERS / count;
|
||||
size_t iter;
|
||||
|
||||
data->count = count;
|
||||
data->includes_g = includes_g;
|
||||
|
||||
/* Compute (the negation of) the expected results directly. */
|
||||
data->offset1 = (data->count * 0x537b7f6f + 0x8f66a481) % POINTS;
|
||||
data->offset2 = (data->count * 0x7f6f537b + 0x6a1a8f49) % POINTS;
|
||||
for (iter = 0; iter < iters; ++iter) {
|
||||
secp256k1_scalar tmp;
|
||||
secp256k1_scalar total = data->scalars[(data->offset1++) % POINTS];
|
||||
size_t i = 0;
|
||||
for (i = 0; i + 1 < count; ++i) {
|
||||
secp256k1_scalar_mul(&tmp, &data->seckeys[(data->offset2++) % POINTS], &data->scalars[(data->offset1++) % POINTS]);
|
||||
secp256k1_scalar_add(&total, &total, &tmp);
|
||||
}
|
||||
secp256k1_scalar_negate(&total, &total);
|
||||
secp256k1_ecmult(&data->ctx->ecmult_ctx, &data->expected_output[iter], NULL, &zero, &total);
|
||||
}
|
||||
|
||||
/* Run the benchmark. */
|
||||
sprintf(str, includes_g ? "ecmult_%ig" : "ecmult_%i", (int)count);
|
||||
run_benchmark(str, bench_ecmult, bench_ecmult_setup, bench_ecmult_teardown, data, 10, count * (1 + ITERS / count));
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
bench_data data;
|
||||
int i, p;
|
||||
secp256k1_gej* pubkeys_gej;
|
||||
size_t scratch_size;
|
||||
|
||||
data.ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY);
|
||||
scratch_size = secp256k1_strauss_scratch_size(POINTS) + STRAUSS_SCRATCH_OBJECTS*16;
|
||||
data.scratch = secp256k1_scratch_space_create(data.ctx, scratch_size);
|
||||
data.ecmult_multi = secp256k1_ecmult_multi_var;
|
||||
|
||||
if (argc > 1) {
|
||||
if(have_flag(argc, argv, "pippenger_wnaf")) {
|
||||
printf("Using pippenger_wnaf:\n");
|
||||
data.ecmult_multi = secp256k1_ecmult_pippenger_batch_single;
|
||||
} else if(have_flag(argc, argv, "strauss_wnaf")) {
|
||||
printf("Using strauss_wnaf:\n");
|
||||
data.ecmult_multi = secp256k1_ecmult_strauss_batch_single;
|
||||
} else if(have_flag(argc, argv, "simple")) {
|
||||
printf("Using simple algorithm:\n");
|
||||
data.ecmult_multi = secp256k1_ecmult_multi_var;
|
||||
secp256k1_scratch_space_destroy(data.scratch);
|
||||
data.scratch = NULL;
|
||||
} else {
|
||||
fprintf(stderr, "%s: unrecognized argument '%s'.\n", argv[0], argv[1]);
|
||||
fprintf(stderr, "Use 'pippenger_wnaf', 'strauss_wnaf', 'simple' or no argument to benchmark a combined algorithm.\n");
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
/* Allocate stuff */
|
||||
data.scalars = malloc(sizeof(secp256k1_scalar) * POINTS);
|
||||
data.seckeys = malloc(sizeof(secp256k1_scalar) * POINTS);
|
||||
data.pubkeys = malloc(sizeof(secp256k1_ge) * POINTS);
|
||||
data.expected_output = malloc(sizeof(secp256k1_gej) * (ITERS + 1));
|
||||
data.output = malloc(sizeof(secp256k1_gej) * (ITERS + 1));
|
||||
|
||||
/* Generate a set of scalars, and private/public keypairs. */
|
||||
pubkeys_gej = malloc(sizeof(secp256k1_gej) * POINTS);
|
||||
secp256k1_gej_set_ge(&pubkeys_gej[0], &secp256k1_ge_const_g);
|
||||
secp256k1_scalar_set_int(&data.seckeys[0], 1);
|
||||
for (i = 0; i < POINTS; ++i) {
|
||||
generate_scalar(i, &data.scalars[i]);
|
||||
if (i) {
|
||||
secp256k1_gej_double_var(&pubkeys_gej[i], &pubkeys_gej[i - 1], NULL);
|
||||
secp256k1_scalar_add(&data.seckeys[i], &data.seckeys[i - 1], &data.seckeys[i - 1]);
|
||||
}
|
||||
}
|
||||
secp256k1_ge_set_all_gej_var(data.pubkeys, pubkeys_gej, POINTS);
|
||||
free(pubkeys_gej);
|
||||
|
||||
for (i = 1; i <= 8; ++i) {
|
||||
run_test(&data, i, 1);
|
||||
}
|
||||
|
||||
for (p = 0; p <= 11; ++p) {
|
||||
for (i = 9; i <= 16; ++i) {
|
||||
run_test(&data, i << p, 1);
|
||||
}
|
||||
}
|
||||
secp256k1_context_destroy(data.ctx);
|
||||
if (data.scratch != NULL) {
|
||||
secp256k1_scratch_space_destroy(data.scratch);
|
||||
}
|
||||
free(data.scalars);
|
||||
free(data.pubkeys);
|
||||
free(data.seckeys);
|
||||
free(data.output);
|
||||
free(data.expected_output);
|
||||
|
||||
return(0);
|
||||
}
|
||||
|
|
@ -25,10 +25,10 @@ typedef struct {
|
|||
secp256k1_gej gej_x, gej_y;
|
||||
unsigned char data[64];
|
||||
int wnaf[256];
|
||||
} bench_inv_t;
|
||||
} bench_inv;
|
||||
|
||||
void bench_setup(void* arg) {
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
static const unsigned char init_x[32] = {
|
||||
0x02, 0x03, 0x05, 0x07, 0x0b, 0x0d, 0x11, 0x13,
|
||||
|
|
@ -58,7 +58,7 @@ void bench_setup(void* arg) {
|
|||
|
||||
void bench_scalar_add(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 2000000; i++) {
|
||||
secp256k1_scalar_add(&data->scalar_x, &data->scalar_x, &data->scalar_y);
|
||||
|
|
@ -67,7 +67,7 @@ void bench_scalar_add(void* arg) {
|
|||
|
||||
void bench_scalar_negate(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 2000000; i++) {
|
||||
secp256k1_scalar_negate(&data->scalar_x, &data->scalar_x);
|
||||
|
|
@ -76,7 +76,7 @@ void bench_scalar_negate(void* arg) {
|
|||
|
||||
void bench_scalar_sqr(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 200000; i++) {
|
||||
secp256k1_scalar_sqr(&data->scalar_x, &data->scalar_x);
|
||||
|
|
@ -85,7 +85,7 @@ void bench_scalar_sqr(void* arg) {
|
|||
|
||||
void bench_scalar_mul(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 200000; i++) {
|
||||
secp256k1_scalar_mul(&data->scalar_x, &data->scalar_x, &data->scalar_y);
|
||||
|
|
@ -95,7 +95,7 @@ void bench_scalar_mul(void* arg) {
|
|||
#ifdef USE_ENDOMORPHISM
|
||||
void bench_scalar_split(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
secp256k1_scalar l, r;
|
||||
|
|
@ -107,7 +107,7 @@ void bench_scalar_split(void* arg) {
|
|||
|
||||
void bench_scalar_inverse(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 2000; i++) {
|
||||
secp256k1_scalar_inverse(&data->scalar_x, &data->scalar_x);
|
||||
|
|
@ -117,7 +117,7 @@ void bench_scalar_inverse(void* arg) {
|
|||
|
||||
void bench_scalar_inverse_var(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 2000; i++) {
|
||||
secp256k1_scalar_inverse_var(&data->scalar_x, &data->scalar_x);
|
||||
|
|
@ -127,7 +127,7 @@ void bench_scalar_inverse_var(void* arg) {
|
|||
|
||||
void bench_field_normalize(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 2000000; i++) {
|
||||
secp256k1_fe_normalize(&data->fe_x);
|
||||
|
|
@ -136,7 +136,7 @@ void bench_field_normalize(void* arg) {
|
|||
|
||||
void bench_field_normalize_weak(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 2000000; i++) {
|
||||
secp256k1_fe_normalize_weak(&data->fe_x);
|
||||
|
|
@ -145,7 +145,7 @@ void bench_field_normalize_weak(void* arg) {
|
|||
|
||||
void bench_field_mul(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 200000; i++) {
|
||||
secp256k1_fe_mul(&data->fe_x, &data->fe_x, &data->fe_y);
|
||||
|
|
@ -154,7 +154,7 @@ void bench_field_mul(void* arg) {
|
|||
|
||||
void bench_field_sqr(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 200000; i++) {
|
||||
secp256k1_fe_sqr(&data->fe_x, &data->fe_x);
|
||||
|
|
@ -163,7 +163,7 @@ void bench_field_sqr(void* arg) {
|
|||
|
||||
void bench_field_inverse(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
secp256k1_fe_inv(&data->fe_x, &data->fe_x);
|
||||
|
|
@ -173,7 +173,7 @@ void bench_field_inverse(void* arg) {
|
|||
|
||||
void bench_field_inverse_var(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
secp256k1_fe_inv_var(&data->fe_x, &data->fe_x);
|
||||
|
|
@ -183,17 +183,19 @@ void bench_field_inverse_var(void* arg) {
|
|||
|
||||
void bench_field_sqrt(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
secp256k1_fe t;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
secp256k1_fe_sqrt(&data->fe_x, &data->fe_x);
|
||||
t = data->fe_x;
|
||||
secp256k1_fe_sqrt(&data->fe_x, &t);
|
||||
secp256k1_fe_add(&data->fe_x, &data->fe_y);
|
||||
}
|
||||
}
|
||||
|
||||
void bench_group_double_var(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 200000; i++) {
|
||||
secp256k1_gej_double_var(&data->gej_x, &data->gej_x, NULL);
|
||||
|
|
@ -202,7 +204,7 @@ void bench_group_double_var(void* arg) {
|
|||
|
||||
void bench_group_add_var(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 200000; i++) {
|
||||
secp256k1_gej_add_var(&data->gej_x, &data->gej_x, &data->gej_y, NULL);
|
||||
|
|
@ -211,7 +213,7 @@ void bench_group_add_var(void* arg) {
|
|||
|
||||
void bench_group_add_affine(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 200000; i++) {
|
||||
secp256k1_gej_add_ge(&data->gej_x, &data->gej_x, &data->ge_y);
|
||||
|
|
@ -220,7 +222,7 @@ void bench_group_add_affine(void* arg) {
|
|||
|
||||
void bench_group_add_affine_var(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 200000; i++) {
|
||||
secp256k1_gej_add_ge_var(&data->gej_x, &data->gej_x, &data->ge_y, NULL);
|
||||
|
|
@ -229,7 +231,7 @@ void bench_group_add_affine_var(void* arg) {
|
|||
|
||||
void bench_group_jacobi_var(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
secp256k1_gej_has_quad_y_var(&data->gej_x);
|
||||
|
|
@ -238,7 +240,7 @@ void bench_group_jacobi_var(void* arg) {
|
|||
|
||||
void bench_ecmult_wnaf(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
secp256k1_ecmult_wnaf(data->wnaf, 256, &data->scalar_x, WINDOW_A);
|
||||
|
|
@ -248,10 +250,10 @@ void bench_ecmult_wnaf(void* arg) {
|
|||
|
||||
void bench_wnaf_const(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
secp256k1_wnaf_const(data->wnaf, data->scalar_x, WINDOW_A);
|
||||
secp256k1_wnaf_const(data->wnaf, data->scalar_x, WINDOW_A, 256);
|
||||
secp256k1_scalar_add(&data->scalar_x, &data->scalar_x, &data->scalar_y);
|
||||
}
|
||||
}
|
||||
|
|
@ -259,8 +261,8 @@ void bench_wnaf_const(void* arg) {
|
|||
|
||||
void bench_sha256(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
secp256k1_sha256_t sha;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
secp256k1_sha256 sha;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
secp256k1_sha256_initialize(&sha);
|
||||
|
|
@ -271,8 +273,8 @@ void bench_sha256(void* arg) {
|
|||
|
||||
void bench_hmac_sha256(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
secp256k1_hmac_sha256_t hmac;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
secp256k1_hmac_sha256 hmac;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
secp256k1_hmac_sha256_initialize(&hmac, data->data, 32);
|
||||
|
|
@ -283,8 +285,8 @@ void bench_hmac_sha256(void* arg) {
|
|||
|
||||
void bench_rfc6979_hmac_sha256(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
secp256k1_rfc6979_hmac_sha256_t rng;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
secp256k1_rfc6979_hmac_sha256 rng;
|
||||
|
||||
for (i = 0; i < 20000; i++) {
|
||||
secp256k1_rfc6979_hmac_sha256_initialize(&rng, data->data, 64);
|
||||
|
|
@ -311,7 +313,7 @@ void bench_context_sign(void* arg) {
|
|||
#ifndef USE_NUM_NONE
|
||||
void bench_num_jacobi(void* arg) {
|
||||
int i;
|
||||
bench_inv_t *data = (bench_inv_t*)arg;
|
||||
bench_inv *data = (bench_inv*)arg;
|
||||
secp256k1_num nx, norder;
|
||||
|
||||
secp256k1_scalar_get_num(&nx, &data->scalar_x);
|
||||
|
|
@ -324,23 +326,8 @@ void bench_num_jacobi(void* arg) {
|
|||
}
|
||||
#endif
|
||||
|
||||
int have_flag(int argc, char** argv, char *flag) {
|
||||
char** argm = argv + argc;
|
||||
argv++;
|
||||
if (argv == argm) {
|
||||
return 1;
|
||||
}
|
||||
while (argv != NULL && argv != argm) {
|
||||
if (strcmp(*argv, flag) == 0) {
|
||||
return 1;
|
||||
}
|
||||
argv++;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv) {
|
||||
bench_inv_t data;
|
||||
bench_inv data;
|
||||
if (have_flag(argc, argv, "scalar") || have_flag(argc, argv, "add")) run_benchmark("scalar_add", bench_scalar_add, bench_setup, NULL, &data, 10, 2000000);
|
||||
if (have_flag(argc, argv, "scalar") || have_flag(argc, argv, "negate")) run_benchmark("scalar_negate", bench_scalar_negate, bench_setup, NULL, &data, 10, 2000000);
|
||||
if (have_flag(argc, argv, "scalar") || have_flag(argc, argv, "sqr")) run_benchmark("scalar_sqr", bench_scalar_sqr, bench_setup, NULL, &data, 10, 200000);
|
||||
|
|
|
|||
|
|
@ -13,11 +13,11 @@ typedef struct {
|
|||
secp256k1_context *ctx;
|
||||
unsigned char msg[32];
|
||||
unsigned char sig[64];
|
||||
} bench_recover_t;
|
||||
} bench_recover_data;
|
||||
|
||||
void bench_recover(void* arg) {
|
||||
int i;
|
||||
bench_recover_t *data = (bench_recover_t*)arg;
|
||||
bench_recover_data *data = (bench_recover_data*)arg;
|
||||
secp256k1_pubkey pubkey;
|
||||
unsigned char pubkeyc[33];
|
||||
|
||||
|
|
@ -38,7 +38,7 @@ void bench_recover(void* arg) {
|
|||
|
||||
void bench_recover_setup(void* arg) {
|
||||
int i;
|
||||
bench_recover_t *data = (bench_recover_t*)arg;
|
||||
bench_recover_data *data = (bench_recover_data*)arg;
|
||||
|
||||
for (i = 0; i < 32; i++) {
|
||||
data->msg[i] = 1 + i;
|
||||
|
|
@ -49,7 +49,7 @@ void bench_recover_setup(void* arg) {
|
|||
}
|
||||
|
||||
int main(void) {
|
||||
bench_recover_t data;
|
||||
bench_recover_data data;
|
||||
|
||||
data.ctx = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY);
|
||||
|
||||
|
|
|
|||
|
|
@ -12,11 +12,11 @@ typedef struct {
|
|||
secp256k1_context* ctx;
|
||||
unsigned char msg[32];
|
||||
unsigned char key[32];
|
||||
} bench_sign_t;
|
||||
} bench_sign;
|
||||
|
||||
static void bench_sign_setup(void* arg) {
|
||||
int i;
|
||||
bench_sign_t *data = (bench_sign_t*)arg;
|
||||
bench_sign *data = (bench_sign*)arg;
|
||||
|
||||
for (i = 0; i < 32; i++) {
|
||||
data->msg[i] = i + 1;
|
||||
|
|
@ -26,9 +26,9 @@ static void bench_sign_setup(void* arg) {
|
|||
}
|
||||
}
|
||||
|
||||
static void bench_sign(void* arg) {
|
||||
static void bench_sign_run(void* arg) {
|
||||
int i;
|
||||
bench_sign_t *data = (bench_sign_t*)arg;
|
||||
bench_sign *data = (bench_sign*)arg;
|
||||
|
||||
unsigned char sig[74];
|
||||
for (i = 0; i < 20000; i++) {
|
||||
|
|
@ -45,11 +45,11 @@ static void bench_sign(void* arg) {
|
|||
}
|
||||
|
||||
int main(void) {
|
||||
bench_sign_t data;
|
||||
bench_sign data;
|
||||
|
||||
data.ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN);
|
||||
|
||||
run_benchmark("ecdsa_sign", bench_sign, bench_sign_setup, NULL, &data, 10, 20000);
|
||||
run_benchmark("ecdsa_sign", bench_sign_run, bench_sign_setup, NULL, &data, 10, 20000);
|
||||
|
||||
secp256k1_context_destroy(data.ctx);
|
||||
return 0;
|
||||
|
|
|
|||
|
|
@ -18,7 +18,7 @@ static int secp256k1_eckey_pubkey_parse(secp256k1_ge *elem, const unsigned char
|
|||
if (size == 33 && (pub[0] == SECP256K1_TAG_PUBKEY_EVEN || pub[0] == SECP256K1_TAG_PUBKEY_ODD)) {
|
||||
secp256k1_fe x;
|
||||
return secp256k1_fe_set_b32(&x, pub+1) && secp256k1_ge_set_xo_var(elem, &x, pub[0] == SECP256K1_TAG_PUBKEY_ODD);
|
||||
} else if (size == 65 && (pub[0] == 0x04 || pub[0] == 0x06 || pub[0] == 0x07)) {
|
||||
} else if (size == 65 && (pub[0] == SECP256K1_TAG_PUBKEY_UNCOMPRESSED || pub[0] == SECP256K1_TAG_PUBKEY_HYBRID_EVEN || pub[0] == SECP256K1_TAG_PUBKEY_HYBRID_ODD)) {
|
||||
secp256k1_fe x, y;
|
||||
if (!secp256k1_fe_set_b32(&x, pub+1) || !secp256k1_fe_set_b32(&y, pub+33)) {
|
||||
return 0;
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/**********************************************************************
|
||||
* Copyright (c) 2013, 2014 Pieter Wuille *
|
||||
* Copyright (c) 2013, 2014, 2017 Pieter Wuille, Andrew Poelstra *
|
||||
* Distributed under the MIT software license, see the accompanying *
|
||||
* file COPYING or http://www.opensource.org/licenses/mit-license.php.*
|
||||
**********************************************************************/
|
||||
|
|
@ -9,6 +9,8 @@
|
|||
|
||||
#include "num.h"
|
||||
#include "group.h"
|
||||
#include "scalar.h"
|
||||
#include "scratch.h"
|
||||
|
||||
typedef struct {
|
||||
/* For accelerating the computation of a*P + b*G: */
|
||||
|
|
@ -28,4 +30,19 @@ static int secp256k1_ecmult_context_is_built(const secp256k1_ecmult_context *ctx
|
|||
/** Double multiply: R = na*A + ng*G */
|
||||
static void secp256k1_ecmult(const secp256k1_ecmult_context *ctx, secp256k1_gej *r, const secp256k1_gej *a, const secp256k1_scalar *na, const secp256k1_scalar *ng);
|
||||
|
||||
typedef int (secp256k1_ecmult_multi_callback)(secp256k1_scalar *sc, secp256k1_ge *pt, size_t idx, void *data);
|
||||
|
||||
/**
|
||||
* Multi-multiply: R = inp_g_sc * G + sum_i ni * Ai.
|
||||
* Chooses the right algorithm for a given number of points and scratch space
|
||||
* size. Resets and overwrites the given scratch space. If the points do not
|
||||
* fit in the scratch space the algorithm is repeatedly run with batches of
|
||||
* points. If no scratch space is given then a simple algorithm is used that
|
||||
* simply multiplies the points with the corresponding scalars and adds them up.
|
||||
* Returns: 1 on success (including when inp_g_sc is NULL and n is 0)
|
||||
* 0 if there is not enough scratch space for a single point or
|
||||
* callback returns 0
|
||||
*/
|
||||
static int secp256k1_ecmult_multi_var(const secp256k1_ecmult_context *ctx, secp256k1_scratch *scratch, secp256k1_gej *r, const secp256k1_scalar *inp_g_sc, secp256k1_ecmult_multi_callback cb, void *cbdata, size_t n);
|
||||
|
||||
#endif /* SECP256K1_ECMULT_H */
|
||||
|
|
|
|||
|
|
@ -10,6 +10,8 @@
|
|||
#include "scalar.h"
|
||||
#include "group.h"
|
||||
|
||||
static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q);
|
||||
/* Here `bits` should be set to the maximum bitlength of the _absolute value_ of `q`, plus
|
||||
* one because we internally sometimes add 2 to the number during the WNAF conversion. */
|
||||
static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *q, int bits);
|
||||
|
||||
#endif /* SECP256K1_ECMULT_CONST_H */
|
||||
|
|
|
|||
|
|
@ -12,13 +12,6 @@
|
|||
#include "ecmult_const.h"
|
||||
#include "ecmult_impl.h"
|
||||
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
#define WNAF_BITS 128
|
||||
#else
|
||||
#define WNAF_BITS 256
|
||||
#endif
|
||||
#define WNAF_SIZE(w) ((WNAF_BITS + (w) - 1) / (w))
|
||||
|
||||
/* This is like `ECMULT_TABLE_GET_GE` but is constant time */
|
||||
#define ECMULT_CONST_TABLE_GET_GE(r,pre,n,w) do { \
|
||||
int m; \
|
||||
|
|
@ -55,7 +48,7 @@
|
|||
*
|
||||
* Numbers reference steps of `Algorithm SPA-resistant Width-w NAF with Odd Scalar` on pp. 335
|
||||
*/
|
||||
static int secp256k1_wnaf_const(int *wnaf, secp256k1_scalar s, int w) {
|
||||
static int secp256k1_wnaf_const(int *wnaf, secp256k1_scalar s, int w, int size) {
|
||||
int global_sign;
|
||||
int skew = 0;
|
||||
int word = 0;
|
||||
|
|
@ -74,9 +67,14 @@ static int secp256k1_wnaf_const(int *wnaf, secp256k1_scalar s, int w) {
|
|||
* and we'd lose any performance benefit. Instead, we use a technique from
|
||||
* Section 4.2 of the Okeya/Tagaki paper, which is to add either 1 (for even)
|
||||
* or 2 (for odd) to the number we are encoding, returning a skew value indicating
|
||||
* this, and having the caller compensate after doing the multiplication. */
|
||||
|
||||
/* Negative numbers will be negated to keep their bit representation below the maximum width */
|
||||
* this, and having the caller compensate after doing the multiplication.
|
||||
*
|
||||
* In fact, we _do_ want to negate numbers to minimize their bit-lengths (and in
|
||||
* particular, to ensure that the outputs from the endomorphism-split fit into
|
||||
* 128 bits). If we negate, the parity of our number flips, inverting which of
|
||||
* {1, 2} we want to add to the scalar when ensuring that it's odd. Further
|
||||
* complicating things, -1 interacts badly with `secp256k1_scalar_cadd_bit` and
|
||||
* we need to special-case it in this logic. */
|
||||
flip = secp256k1_scalar_is_high(&s);
|
||||
/* We add 1 to even numbers, 2 to odd ones, noting that negation flips parity */
|
||||
bit = flip ^ !secp256k1_scalar_is_even(&s);
|
||||
|
|
@ -95,7 +93,7 @@ static int secp256k1_wnaf_const(int *wnaf, secp256k1_scalar s, int w) {
|
|||
|
||||
/* 4 */
|
||||
u_last = secp256k1_scalar_shr_int(&s, w);
|
||||
while (word * w < WNAF_BITS) {
|
||||
while (word * w < size) {
|
||||
int sign;
|
||||
int even;
|
||||
|
||||
|
|
@ -115,37 +113,44 @@ static int secp256k1_wnaf_const(int *wnaf, secp256k1_scalar s, int w) {
|
|||
wnaf[word] = u * global_sign;
|
||||
|
||||
VERIFY_CHECK(secp256k1_scalar_is_zero(&s));
|
||||
VERIFY_CHECK(word == WNAF_SIZE(w));
|
||||
VERIFY_CHECK(word == WNAF_SIZE_BITS(size, w));
|
||||
return skew;
|
||||
}
|
||||
|
||||
|
||||
static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *scalar) {
|
||||
static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, const secp256k1_scalar *scalar, int size) {
|
||||
secp256k1_ge pre_a[ECMULT_TABLE_SIZE(WINDOW_A)];
|
||||
secp256k1_ge tmpa;
|
||||
secp256k1_fe Z;
|
||||
|
||||
int skew_1;
|
||||
int wnaf_1[1 + WNAF_SIZE(WINDOW_A - 1)];
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
secp256k1_ge pre_a_lam[ECMULT_TABLE_SIZE(WINDOW_A)];
|
||||
int wnaf_lam[1 + WNAF_SIZE(WINDOW_A - 1)];
|
||||
int skew_lam;
|
||||
secp256k1_scalar q_1, q_lam;
|
||||
#endif
|
||||
int wnaf_1[1 + WNAF_SIZE(WINDOW_A - 1)];
|
||||
|
||||
int i;
|
||||
secp256k1_scalar sc = *scalar;
|
||||
|
||||
/* build wnaf representation for q. */
|
||||
int rsize = size;
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
/* split q into q_1 and q_lam (where q = q_1 + q_lam*lambda, and q_1 and q_lam are ~128 bit) */
|
||||
secp256k1_scalar_split_lambda(&q_1, &q_lam, &sc);
|
||||
skew_1 = secp256k1_wnaf_const(wnaf_1, q_1, WINDOW_A - 1);
|
||||
skew_lam = secp256k1_wnaf_const(wnaf_lam, q_lam, WINDOW_A - 1);
|
||||
#else
|
||||
skew_1 = secp256k1_wnaf_const(wnaf_1, sc, WINDOW_A - 1);
|
||||
if (size > 128) {
|
||||
rsize = 128;
|
||||
/* split q into q_1 and q_lam (where q = q_1 + q_lam*lambda, and q_1 and q_lam are ~128 bit) */
|
||||
secp256k1_scalar_split_lambda(&q_1, &q_lam, &sc);
|
||||
skew_1 = secp256k1_wnaf_const(wnaf_1, q_1, WINDOW_A - 1, 128);
|
||||
skew_lam = secp256k1_wnaf_const(wnaf_lam, q_lam, WINDOW_A - 1, 128);
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
skew_1 = secp256k1_wnaf_const(wnaf_1, sc, WINDOW_A - 1, size);
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
skew_lam = 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
/* Calculate odd multiples of a.
|
||||
* All multiples are brought to the same Z 'denominator', which is stored
|
||||
|
|
@ -159,26 +164,30 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons
|
|||
secp256k1_fe_normalize_weak(&pre_a[i].y);
|
||||
}
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
for (i = 0; i < ECMULT_TABLE_SIZE(WINDOW_A); i++) {
|
||||
secp256k1_ge_mul_lambda(&pre_a_lam[i], &pre_a[i]);
|
||||
if (size > 128) {
|
||||
for (i = 0; i < ECMULT_TABLE_SIZE(WINDOW_A); i++) {
|
||||
secp256k1_ge_mul_lambda(&pre_a_lam[i], &pre_a[i]);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/* first loop iteration (separated out so we can directly set r, rather
|
||||
* than having it start at infinity, get doubled several times, then have
|
||||
* its new value added to it) */
|
||||
i = wnaf_1[WNAF_SIZE(WINDOW_A - 1)];
|
||||
i = wnaf_1[WNAF_SIZE_BITS(rsize, WINDOW_A - 1)];
|
||||
VERIFY_CHECK(i != 0);
|
||||
ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a, i, WINDOW_A);
|
||||
secp256k1_gej_set_ge(r, &tmpa);
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
i = wnaf_lam[WNAF_SIZE(WINDOW_A - 1)];
|
||||
VERIFY_CHECK(i != 0);
|
||||
ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a_lam, i, WINDOW_A);
|
||||
secp256k1_gej_add_ge(r, r, &tmpa);
|
||||
if (size > 128) {
|
||||
i = wnaf_lam[WNAF_SIZE_BITS(rsize, WINDOW_A - 1)];
|
||||
VERIFY_CHECK(i != 0);
|
||||
ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a_lam, i, WINDOW_A);
|
||||
secp256k1_gej_add_ge(r, r, &tmpa);
|
||||
}
|
||||
#endif
|
||||
/* remaining loop iterations */
|
||||
for (i = WNAF_SIZE(WINDOW_A - 1) - 1; i >= 0; i--) {
|
||||
for (i = WNAF_SIZE_BITS(rsize, WINDOW_A - 1) - 1; i >= 0; i--) {
|
||||
int n;
|
||||
int j;
|
||||
for (j = 0; j < WINDOW_A - 1; ++j) {
|
||||
|
|
@ -190,10 +199,12 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons
|
|||
VERIFY_CHECK(n != 0);
|
||||
secp256k1_gej_add_ge(r, r, &tmpa);
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
n = wnaf_lam[i];
|
||||
ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a_lam, n, WINDOW_A);
|
||||
VERIFY_CHECK(n != 0);
|
||||
secp256k1_gej_add_ge(r, r, &tmpa);
|
||||
if (size > 128) {
|
||||
n = wnaf_lam[i];
|
||||
ECMULT_CONST_TABLE_GET_GE(&tmpa, pre_a_lam, n, WINDOW_A);
|
||||
VERIFY_CHECK(n != 0);
|
||||
secp256k1_gej_add_ge(r, r, &tmpa);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
|
|
@ -213,14 +224,18 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons
|
|||
secp256k1_ge_set_gej(&correction, &tmpj);
|
||||
secp256k1_ge_to_storage(&correction_1_stor, a);
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
secp256k1_ge_to_storage(&correction_lam_stor, a);
|
||||
if (size > 128) {
|
||||
secp256k1_ge_to_storage(&correction_lam_stor, a);
|
||||
}
|
||||
#endif
|
||||
secp256k1_ge_to_storage(&a2_stor, &correction);
|
||||
|
||||
/* For odd numbers this is 2a (so replace it), for even ones a (so no-op) */
|
||||
secp256k1_ge_storage_cmov(&correction_1_stor, &a2_stor, skew_1 == 2);
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
secp256k1_ge_storage_cmov(&correction_lam_stor, &a2_stor, skew_lam == 2);
|
||||
if (size > 128) {
|
||||
secp256k1_ge_storage_cmov(&correction_lam_stor, &a2_stor, skew_lam == 2);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Apply the correction */
|
||||
|
|
@ -229,10 +244,12 @@ static void secp256k1_ecmult_const(secp256k1_gej *r, const secp256k1_ge *a, cons
|
|||
secp256k1_gej_add_ge(r, r, &correction);
|
||||
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
secp256k1_ge_from_storage(&correction, &correction_lam_stor);
|
||||
secp256k1_ge_neg(&correction, &correction);
|
||||
secp256k1_ge_mul_lambda(&correction, &correction);
|
||||
secp256k1_gej_add_ge(r, r, &correction);
|
||||
if (size > 128) {
|
||||
secp256k1_ge_from_storage(&correction, &correction_lam_stor);
|
||||
secp256k1_ge_neg(&correction, &correction);
|
||||
secp256k1_ge_mul_lambda(&correction, &correction);
|
||||
secp256k1_gej_add_ge(r, r, &correction);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -77,7 +77,7 @@ static void secp256k1_ecmult_gen_context_build(secp256k1_ecmult_gen_context *ctx
|
|||
secp256k1_gej_add_var(&numsbase, &numsbase, &nums_gej, NULL);
|
||||
}
|
||||
}
|
||||
secp256k1_ge_set_all_gej_var(prec, precj, 1024, cb);
|
||||
secp256k1_ge_set_all_gej_var(prec, precj, 1024);
|
||||
}
|
||||
for (j = 0; j < 64; j++) {
|
||||
for (i = 0; i < 16; i++) {
|
||||
|
|
@ -161,7 +161,7 @@ static void secp256k1_ecmult_gen_blind(secp256k1_ecmult_gen_context *ctx, const
|
|||
secp256k1_gej gb;
|
||||
secp256k1_fe s;
|
||||
unsigned char nonce32[32];
|
||||
secp256k1_rfc6979_hmac_sha256_t rng;
|
||||
secp256k1_rfc6979_hmac_sha256 rng;
|
||||
int retry;
|
||||
unsigned char keydata[64] = {0};
|
||||
if (seed32 == NULL) {
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load diff
|
|
@ -10,7 +10,9 @@
|
|||
#include <stdint.h>
|
||||
|
||||
typedef struct {
|
||||
/* X = sum(i=0..9, elem[i]*2^26) mod n */
|
||||
/* X = sum(i=0..9, n[i]*2^(i*26)) mod p
|
||||
* where p = 2^256 - 0x1000003D1
|
||||
*/
|
||||
uint32_t n[10];
|
||||
#ifdef VERIFY
|
||||
int magnitude;
|
||||
|
|
|
|||
|
|
@ -8,7 +8,6 @@
|
|||
#define SECP256K1_FIELD_REPR_IMPL_H
|
||||
|
||||
#include "util.h"
|
||||
#include "num.h"
|
||||
#include "field.h"
|
||||
|
||||
#ifdef VERIFY
|
||||
|
|
@ -486,7 +485,8 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint32_t *r, const uint32_t
|
|||
VERIFY_BITS(b[9], 26);
|
||||
|
||||
/** [... a b c] is a shorthand for ... + a<<52 + b<<26 + c<<0 mod n.
|
||||
* px is a shorthand for sum(a[i]*b[x-i], i=0..x).
|
||||
* for 0 <= x <= 9, px is a shorthand for sum(a[i]*b[x-i], i=0..x).
|
||||
* for 9 <= x <= 18, px is a shorthand for sum(a[i]*b[x-i], i=(x-9)..9)
|
||||
* Note that [x 0 0 0 0 0 0 0 0 0 0] = [x*R1 x*R0].
|
||||
*/
|
||||
|
||||
|
|
@ -1069,6 +1069,7 @@ static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp2
|
|||
secp256k1_fe_verify(a);
|
||||
secp256k1_fe_verify(b);
|
||||
VERIFY_CHECK(r != b);
|
||||
VERIFY_CHECK(a != b);
|
||||
#endif
|
||||
secp256k1_fe_mul_inner(r->n, a->n, b->n);
|
||||
#ifdef VERIFY
|
||||
|
|
|
|||
|
|
@ -10,7 +10,9 @@
|
|||
#include <stdint.h>
|
||||
|
||||
typedef struct {
|
||||
/* X = sum(i=0..4, elem[i]*2^52) mod n */
|
||||
/* X = sum(i=0..4, n[i]*2^(i*52)) mod p
|
||||
* where p = 2^256 - 0x1000003D1
|
||||
*/
|
||||
uint64_t n[5];
|
||||
#ifdef VERIFY
|
||||
int magnitude;
|
||||
|
|
|
|||
|
|
@ -12,7 +12,6 @@
|
|||
#endif
|
||||
|
||||
#include "util.h"
|
||||
#include "num.h"
|
||||
#include "field.h"
|
||||
|
||||
#if defined(USE_ASM_X86_64)
|
||||
|
|
@ -422,6 +421,7 @@ static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp2
|
|||
secp256k1_fe_verify(a);
|
||||
secp256k1_fe_verify(b);
|
||||
VERIFY_CHECK(r != b);
|
||||
VERIFY_CHECK(a != b);
|
||||
#endif
|
||||
secp256k1_fe_mul_inner(r->n, a->n, b->n);
|
||||
#ifdef VERIFY
|
||||
|
|
|
|||
|
|
@ -32,9 +32,11 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint64_t *r, const uint64_t
|
|||
VERIFY_BITS(b[3], 56);
|
||||
VERIFY_BITS(b[4], 52);
|
||||
VERIFY_CHECK(r != b);
|
||||
VERIFY_CHECK(a != b);
|
||||
|
||||
/* [... a b c] is a shorthand for ... + a<<104 + b<<52 + c<<0 mod n.
|
||||
* px is a shorthand for sum(a[i]*b[x-i], i=0..x).
|
||||
* for 0 <= x <= 4, px is a shorthand for sum(a[i]*b[x-i], i=0..x).
|
||||
* for 4 <= x <= 8, px is a shorthand for sum(a[i]*b[x-i], i=(x-4)..4)
|
||||
* Note that [x 0 0 0 0 0] = [x*R].
|
||||
*/
|
||||
|
||||
|
|
|
|||
|
|
@ -12,6 +12,7 @@
|
|||
#endif
|
||||
|
||||
#include "util.h"
|
||||
#include "num.h"
|
||||
|
||||
#if defined(USE_FIELD_10X26)
|
||||
#include "field_10x26_impl.h"
|
||||
|
|
@ -48,6 +49,8 @@ static int secp256k1_fe_sqrt(secp256k1_fe *r, const secp256k1_fe *a) {
|
|||
secp256k1_fe x2, x3, x6, x9, x11, x22, x44, x88, x176, x220, x223, t1;
|
||||
int j;
|
||||
|
||||
VERIFY_CHECK(r != a);
|
||||
|
||||
/** The binary representation of (p + 1)/4 has 3 blocks of 1s, with lengths in
|
||||
* { 2, 22, 223 }. Use an addition chain to calculate 2^n - 1 for each block:
|
||||
* 1, [2], 3, 6, 9, 11, [22], 44, 88, 176, 220, [223]
|
||||
|
|
|
|||
|
|
@ -41,7 +41,7 @@ int main(int argc, char **argv) {
|
|||
|
||||
fprintf(fp, "#ifndef _SECP256K1_ECMULT_STATIC_CONTEXT_\n");
|
||||
fprintf(fp, "#define _SECP256K1_ECMULT_STATIC_CONTEXT_\n");
|
||||
fprintf(fp, "#include \"group.h\"\n");
|
||||
fprintf(fp, "#include \"src/group.h\"\n");
|
||||
fprintf(fp, "#define SC SECP256K1_GE_STORAGE_CONST\n");
|
||||
fprintf(fp, "static const secp256k1_ge_storage secp256k1_ecmult_static_context[64][16] = {\n");
|
||||
|
||||
|
|
|
|||
|
|
@ -65,12 +65,7 @@ static void secp256k1_ge_neg(secp256k1_ge *r, const secp256k1_ge *a);
|
|||
static void secp256k1_ge_set_gej(secp256k1_ge *r, secp256k1_gej *a);
|
||||
|
||||
/** Set a batch of group elements equal to the inputs given in jacobian coordinates */
|
||||
static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a, size_t len, const secp256k1_callback *cb);
|
||||
|
||||
/** Set a batch of group elements equal to the inputs given in jacobian
|
||||
* coordinates (with known z-ratios). zr must contain the known z-ratios such
|
||||
* that mul(a[i].z, zr[i+1]) == a[i+1].z. zr[0] is ignored. */
|
||||
static void secp256k1_ge_set_table_gej_var(secp256k1_ge *r, const secp256k1_gej *a, const secp256k1_fe *zr, size_t len);
|
||||
static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a, size_t len);
|
||||
|
||||
/** Bring a batch inputs given in jacobian coordinates (with known z-ratios) to
|
||||
* the same global z "denominator". zr must contain the known z-ratios such
|
||||
|
|
@ -79,6 +74,9 @@ static void secp256k1_ge_set_table_gej_var(secp256k1_ge *r, const secp256k1_gej
|
|||
* stored in globalz. */
|
||||
static void secp256k1_ge_globalz_set_table_gej(size_t len, secp256k1_ge *r, secp256k1_fe *globalz, const secp256k1_gej *a, const secp256k1_fe *zr);
|
||||
|
||||
/** Set a group element (affine) equal to the point at infinity. */
|
||||
static void secp256k1_ge_set_infinity(secp256k1_ge *r);
|
||||
|
||||
/** Set a group element (jacobian) equal to the point at infinity. */
|
||||
static void secp256k1_gej_set_infinity(secp256k1_gej *r);
|
||||
|
||||
|
|
|
|||
|
|
@ -38,22 +38,22 @@
|
|||
*/
|
||||
#if defined(EXHAUSTIVE_TEST_ORDER)
|
||||
# if EXHAUSTIVE_TEST_ORDER == 199
|
||||
const secp256k1_ge secp256k1_ge_const_g = SECP256K1_GE_CONST(
|
||||
static const secp256k1_ge secp256k1_ge_const_g = SECP256K1_GE_CONST(
|
||||
0xFA7CC9A7, 0x0737F2DB, 0xA749DD39, 0x2B4FB069,
|
||||
0x3B017A7D, 0xA808C2F1, 0xFB12940C, 0x9EA66C18,
|
||||
0x78AC123A, 0x5ED8AEF3, 0x8732BC91, 0x1F3A2868,
|
||||
0x48DF246C, 0x808DAE72, 0xCFE52572, 0x7F0501ED
|
||||
);
|
||||
|
||||
const int CURVE_B = 4;
|
||||
static const int CURVE_B = 4;
|
||||
# elif EXHAUSTIVE_TEST_ORDER == 13
|
||||
const secp256k1_ge secp256k1_ge_const_g = SECP256K1_GE_CONST(
|
||||
static const secp256k1_ge secp256k1_ge_const_g = SECP256K1_GE_CONST(
|
||||
0xedc60018, 0xa51a786b, 0x2ea91f4d, 0x4c9416c0,
|
||||
0x9de54c3b, 0xa1316554, 0x6cf4345c, 0x7277ef15,
|
||||
0x54cb1b6b, 0xdc8c1273, 0x087844ea, 0x43f4603e,
|
||||
0x0eaf9a43, 0xf6effe55, 0x939f806d, 0x37adf8ac
|
||||
);
|
||||
const int CURVE_B = 2;
|
||||
static const int CURVE_B = 2;
|
||||
# else
|
||||
# error No known generator for the specified exhaustive test group order.
|
||||
# endif
|
||||
|
|
@ -68,7 +68,7 @@ static const secp256k1_ge secp256k1_ge_const_g = SECP256K1_GE_CONST(
|
|||
0xFD17B448UL, 0xA6855419UL, 0x9C47D08FUL, 0xFB10D4B8UL
|
||||
);
|
||||
|
||||
const int CURVE_B = 7;
|
||||
static const int CURVE_B = 7;
|
||||
#endif
|
||||
|
||||
static void secp256k1_ge_set_gej_zinv(secp256k1_ge *r, const secp256k1_gej *a, const secp256k1_fe *zi) {
|
||||
|
|
@ -126,46 +126,43 @@ static void secp256k1_ge_set_gej_var(secp256k1_ge *r, secp256k1_gej *a) {
|
|||
r->y = a->y;
|
||||
}
|
||||
|
||||
static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a, size_t len, const secp256k1_callback *cb) {
|
||||
secp256k1_fe *az;
|
||||
secp256k1_fe *azi;
|
||||
static void secp256k1_ge_set_all_gej_var(secp256k1_ge *r, const secp256k1_gej *a, size_t len) {
|
||||
secp256k1_fe u;
|
||||
size_t i;
|
||||
size_t count = 0;
|
||||
az = (secp256k1_fe *)checked_malloc(cb, sizeof(secp256k1_fe) * len);
|
||||
size_t last_i = SIZE_MAX;
|
||||
|
||||
for (i = 0; i < len; i++) {
|
||||
if (!a[i].infinity) {
|
||||
az[count++] = a[i].z;
|
||||
/* Use destination's x coordinates as scratch space */
|
||||
if (last_i == SIZE_MAX) {
|
||||
r[i].x = a[i].z;
|
||||
} else {
|
||||
secp256k1_fe_mul(&r[i].x, &r[last_i].x, &a[i].z);
|
||||
}
|
||||
last_i = i;
|
||||
}
|
||||
}
|
||||
if (last_i == SIZE_MAX) {
|
||||
return;
|
||||
}
|
||||
secp256k1_fe_inv_var(&u, &r[last_i].x);
|
||||
|
||||
azi = (secp256k1_fe *)checked_malloc(cb, sizeof(secp256k1_fe) * count);
|
||||
secp256k1_fe_inv_all_var(azi, az, count);
|
||||
free(az);
|
||||
i = last_i;
|
||||
while (i > 0) {
|
||||
i--;
|
||||
if (!a[i].infinity) {
|
||||
secp256k1_fe_mul(&r[last_i].x, &r[i].x, &u);
|
||||
secp256k1_fe_mul(&u, &u, &a[last_i].z);
|
||||
last_i = i;
|
||||
}
|
||||
}
|
||||
VERIFY_CHECK(!a[last_i].infinity);
|
||||
r[last_i].x = u;
|
||||
|
||||
count = 0;
|
||||
for (i = 0; i < len; i++) {
|
||||
r[i].infinity = a[i].infinity;
|
||||
if (!a[i].infinity) {
|
||||
secp256k1_ge_set_gej_zinv(&r[i], &a[i], &azi[count++]);
|
||||
}
|
||||
}
|
||||
free(azi);
|
||||
}
|
||||
|
||||
static void secp256k1_ge_set_table_gej_var(secp256k1_ge *r, const secp256k1_gej *a, const secp256k1_fe *zr, size_t len) {
|
||||
size_t i = len - 1;
|
||||
secp256k1_fe zi;
|
||||
|
||||
if (len > 0) {
|
||||
/* Compute the inverse of the last z coordinate, and use it to compute the last affine output. */
|
||||
secp256k1_fe_inv(&zi, &a[i].z);
|
||||
secp256k1_ge_set_gej_zinv(&r[i], &a[i], &zi);
|
||||
|
||||
/* Work out way backwards, using the z-ratios to scale the x/y values. */
|
||||
while (i > 0) {
|
||||
secp256k1_fe_mul(&zi, &zi, &zr[i]);
|
||||
i--;
|
||||
secp256k1_ge_set_gej_zinv(&r[i], &a[i], &zi);
|
||||
secp256k1_ge_set_gej_zinv(&r[i], &a[i], &r[i].x);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -178,6 +175,8 @@ static void secp256k1_ge_globalz_set_table_gej(size_t len, secp256k1_ge *r, secp
|
|||
/* The z of the final point gives us the "global Z" for the table. */
|
||||
r[i].x = a[i].x;
|
||||
r[i].y = a[i].y;
|
||||
/* Ensure all y values are in weak normal form for fast negation of points */
|
||||
secp256k1_fe_normalize_weak(&r[i].y);
|
||||
*globalz = a[i].z;
|
||||
r[i].infinity = 0;
|
||||
zs = zr[i];
|
||||
|
|
@ -200,6 +199,12 @@ static void secp256k1_gej_set_infinity(secp256k1_gej *r) {
|
|||
secp256k1_fe_clear(&r->z);
|
||||
}
|
||||
|
||||
static void secp256k1_ge_set_infinity(secp256k1_ge *r) {
|
||||
r->infinity = 1;
|
||||
secp256k1_fe_clear(&r->x);
|
||||
secp256k1_fe_clear(&r->y);
|
||||
}
|
||||
|
||||
static void secp256k1_gej_clear(secp256k1_gej *r) {
|
||||
r->infinity = 0;
|
||||
secp256k1_fe_clear(&r->x);
|
||||
|
|
|
|||
|
|
@ -14,28 +14,28 @@ typedef struct {
|
|||
uint32_t s[8];
|
||||
uint32_t buf[16]; /* In big endian */
|
||||
size_t bytes;
|
||||
} secp256k1_sha256_t;
|
||||
} secp256k1_sha256;
|
||||
|
||||
static void secp256k1_sha256_initialize(secp256k1_sha256_t *hash);
|
||||
static void secp256k1_sha256_write(secp256k1_sha256_t *hash, const unsigned char *data, size_t size);
|
||||
static void secp256k1_sha256_finalize(secp256k1_sha256_t *hash, unsigned char *out32);
|
||||
static void secp256k1_sha256_initialize(secp256k1_sha256 *hash);
|
||||
static void secp256k1_sha256_write(secp256k1_sha256 *hash, const unsigned char *data, size_t size);
|
||||
static void secp256k1_sha256_finalize(secp256k1_sha256 *hash, unsigned char *out32);
|
||||
|
||||
typedef struct {
|
||||
secp256k1_sha256_t inner, outer;
|
||||
} secp256k1_hmac_sha256_t;
|
||||
secp256k1_sha256 inner, outer;
|
||||
} secp256k1_hmac_sha256;
|
||||
|
||||
static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256_t *hash, const unsigned char *key, size_t size);
|
||||
static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256_t *hash, const unsigned char *data, size_t size);
|
||||
static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256_t *hash, unsigned char *out32);
|
||||
static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256 *hash, const unsigned char *key, size_t size);
|
||||
static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256 *hash, const unsigned char *data, size_t size);
|
||||
static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256 *hash, unsigned char *out32);
|
||||
|
||||
typedef struct {
|
||||
unsigned char v[32];
|
||||
unsigned char k[32];
|
||||
int retry;
|
||||
} secp256k1_rfc6979_hmac_sha256_t;
|
||||
} secp256k1_rfc6979_hmac_sha256;
|
||||
|
||||
static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256_t *rng, const unsigned char *key, size_t keylen);
|
||||
static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256_t *rng, unsigned char *out, size_t outlen);
|
||||
static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256_t *rng);
|
||||
static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256 *rng, const unsigned char *key, size_t keylen);
|
||||
static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256 *rng, unsigned char *out, size_t outlen);
|
||||
static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256 *rng);
|
||||
|
||||
#endif /* SECP256K1_HASH_H */
|
||||
|
|
|
|||
|
|
@ -33,7 +33,7 @@
|
|||
#define BE32(p) ((((p) & 0xFF) << 24) | (((p) & 0xFF00) << 8) | (((p) & 0xFF0000) >> 8) | (((p) & 0xFF000000) >> 24))
|
||||
#endif
|
||||
|
||||
static void secp256k1_sha256_initialize(secp256k1_sha256_t *hash) {
|
||||
static void secp256k1_sha256_initialize(secp256k1_sha256 *hash) {
|
||||
hash->s[0] = 0x6a09e667ul;
|
||||
hash->s[1] = 0xbb67ae85ul;
|
||||
hash->s[2] = 0x3c6ef372ul;
|
||||
|
|
@ -128,14 +128,15 @@ static void secp256k1_sha256_transform(uint32_t* s, const uint32_t* chunk) {
|
|||
s[7] += h;
|
||||
}
|
||||
|
||||
static void secp256k1_sha256_write(secp256k1_sha256_t *hash, const unsigned char *data, size_t len) {
|
||||
static void secp256k1_sha256_write(secp256k1_sha256 *hash, const unsigned char *data, size_t len) {
|
||||
size_t bufsize = hash->bytes & 0x3F;
|
||||
hash->bytes += len;
|
||||
while (bufsize + len >= 64) {
|
||||
/* Fill the buffer, and process it. */
|
||||
memcpy(((unsigned char*)hash->buf) + bufsize, data, 64 - bufsize);
|
||||
data += 64 - bufsize;
|
||||
len -= 64 - bufsize;
|
||||
size_t chunk_len = 64 - bufsize;
|
||||
memcpy(((unsigned char*)hash->buf) + bufsize, data, chunk_len);
|
||||
data += chunk_len;
|
||||
len -= chunk_len;
|
||||
secp256k1_sha256_transform(hash->s, hash->buf);
|
||||
bufsize = 0;
|
||||
}
|
||||
|
|
@ -145,7 +146,7 @@ static void secp256k1_sha256_write(secp256k1_sha256_t *hash, const unsigned char
|
|||
}
|
||||
}
|
||||
|
||||
static void secp256k1_sha256_finalize(secp256k1_sha256_t *hash, unsigned char *out32) {
|
||||
static void secp256k1_sha256_finalize(secp256k1_sha256 *hash, unsigned char *out32) {
|
||||
static const unsigned char pad[64] = {0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
|
||||
uint32_t sizedesc[2];
|
||||
uint32_t out[8];
|
||||
|
|
@ -161,14 +162,14 @@ static void secp256k1_sha256_finalize(secp256k1_sha256_t *hash, unsigned char *o
|
|||
memcpy(out32, (const unsigned char*)out, 32);
|
||||
}
|
||||
|
||||
static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256_t *hash, const unsigned char *key, size_t keylen) {
|
||||
int n;
|
||||
static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256 *hash, const unsigned char *key, size_t keylen) {
|
||||
size_t n;
|
||||
unsigned char rkey[64];
|
||||
if (keylen <= 64) {
|
||||
if (keylen <= sizeof(rkey)) {
|
||||
memcpy(rkey, key, keylen);
|
||||
memset(rkey + keylen, 0, 64 - keylen);
|
||||
memset(rkey + keylen, 0, sizeof(rkey) - keylen);
|
||||
} else {
|
||||
secp256k1_sha256_t sha256;
|
||||
secp256k1_sha256 sha256;
|
||||
secp256k1_sha256_initialize(&sha256);
|
||||
secp256k1_sha256_write(&sha256, key, keylen);
|
||||
secp256k1_sha256_finalize(&sha256, rkey);
|
||||
|
|
@ -176,24 +177,24 @@ static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256_t *hash, cons
|
|||
}
|
||||
|
||||
secp256k1_sha256_initialize(&hash->outer);
|
||||
for (n = 0; n < 64; n++) {
|
||||
for (n = 0; n < sizeof(rkey); n++) {
|
||||
rkey[n] ^= 0x5c;
|
||||
}
|
||||
secp256k1_sha256_write(&hash->outer, rkey, 64);
|
||||
secp256k1_sha256_write(&hash->outer, rkey, sizeof(rkey));
|
||||
|
||||
secp256k1_sha256_initialize(&hash->inner);
|
||||
for (n = 0; n < 64; n++) {
|
||||
for (n = 0; n < sizeof(rkey); n++) {
|
||||
rkey[n] ^= 0x5c ^ 0x36;
|
||||
}
|
||||
secp256k1_sha256_write(&hash->inner, rkey, 64);
|
||||
memset(rkey, 0, 64);
|
||||
secp256k1_sha256_write(&hash->inner, rkey, sizeof(rkey));
|
||||
memset(rkey, 0, sizeof(rkey));
|
||||
}
|
||||
|
||||
static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256_t *hash, const unsigned char *data, size_t size) {
|
||||
static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256 *hash, const unsigned char *data, size_t size) {
|
||||
secp256k1_sha256_write(&hash->inner, data, size);
|
||||
}
|
||||
|
||||
static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256_t *hash, unsigned char *out32) {
|
||||
static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256 *hash, unsigned char *out32) {
|
||||
unsigned char temp[32];
|
||||
secp256k1_sha256_finalize(&hash->inner, temp);
|
||||
secp256k1_sha256_write(&hash->outer, temp, 32);
|
||||
|
|
@ -202,8 +203,8 @@ static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256_t *hash, unsign
|
|||
}
|
||||
|
||||
|
||||
static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256_t *rng, const unsigned char *key, size_t keylen) {
|
||||
secp256k1_hmac_sha256_t hmac;
|
||||
static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256 *rng, const unsigned char *key, size_t keylen) {
|
||||
secp256k1_hmac_sha256 hmac;
|
||||
static const unsigned char zero[1] = {0x00};
|
||||
static const unsigned char one[1] = {0x01};
|
||||
|
||||
|
|
@ -232,11 +233,11 @@ static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha2
|
|||
rng->retry = 0;
|
||||
}
|
||||
|
||||
static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256_t *rng, unsigned char *out, size_t outlen) {
|
||||
static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256 *rng, unsigned char *out, size_t outlen) {
|
||||
/* RFC6979 3.2.h. */
|
||||
static const unsigned char zero[1] = {0x00};
|
||||
if (rng->retry) {
|
||||
secp256k1_hmac_sha256_t hmac;
|
||||
secp256k1_hmac_sha256 hmac;
|
||||
secp256k1_hmac_sha256_initialize(&hmac, rng->k, 32);
|
||||
secp256k1_hmac_sha256_write(&hmac, rng->v, 32);
|
||||
secp256k1_hmac_sha256_write(&hmac, zero, 1);
|
||||
|
|
@ -247,7 +248,7 @@ static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256
|
|||
}
|
||||
|
||||
while (outlen > 0) {
|
||||
secp256k1_hmac_sha256_t hmac;
|
||||
secp256k1_hmac_sha256 hmac;
|
||||
int now = outlen;
|
||||
secp256k1_hmac_sha256_initialize(&hmac, rng->k, 32);
|
||||
secp256k1_hmac_sha256_write(&hmac, rng->v, 32);
|
||||
|
|
@ -263,7 +264,7 @@ static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256
|
|||
rng->retry = 1;
|
||||
}
|
||||
|
||||
static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256_t *rng) {
|
||||
static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256 *rng) {
|
||||
memset(rng->k, 0, 32);
|
||||
memset(rng->v, 0, 32);
|
||||
rng->retry = 0;
|
||||
|
|
|
|||
|
|
@ -52,7 +52,7 @@ public class NativeSecp256k1Test {
|
|||
}
|
||||
|
||||
/**
|
||||
* This tests secret key verify() for a invalid secretkey
|
||||
* This tests secret key verify() for an invalid secretkey
|
||||
*/
|
||||
public static void testSecKeyVerifyNeg() throws AssertFailException{
|
||||
boolean result = false;
|
||||
|
|
|
|||
|
|
@ -83,7 +83,7 @@ SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1e
|
|||
|
||||
secp256k1_ecdsa_signature sig[72];
|
||||
|
||||
int ret = secp256k1_ecdsa_sign(ctx, sig, data, secKey, NULL, NULL );
|
||||
int ret = secp256k1_ecdsa_sign(ctx, sig, data, secKey, NULL, NULL);
|
||||
|
||||
unsigned char outputSer[72];
|
||||
size_t outputLen = 72;
|
||||
|
|
@ -353,7 +353,9 @@ SECP256K1_API jobjectArray JNICALL Java_org_bitcoin_NativeSecp256k1_secp256k1_1e
|
|||
ctx,
|
||||
nonce_res,
|
||||
&pubkey,
|
||||
secdata
|
||||
secdata,
|
||||
NULL,
|
||||
NULL
|
||||
);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -10,16 +10,35 @@
|
|||
#include "include/secp256k1_ecdh.h"
|
||||
#include "ecmult_const_impl.h"
|
||||
|
||||
int secp256k1_ecdh(const secp256k1_context* ctx, unsigned char *result, const secp256k1_pubkey *point, const unsigned char *scalar) {
|
||||
static int ecdh_hash_function_sha256(unsigned char *output, const unsigned char *x, const unsigned char *y, void *data) {
|
||||
unsigned char version = (y[31] & 0x01) | 0x02;
|
||||
secp256k1_sha256 sha;
|
||||
(void)data;
|
||||
|
||||
secp256k1_sha256_initialize(&sha);
|
||||
secp256k1_sha256_write(&sha, &version, 1);
|
||||
secp256k1_sha256_write(&sha, x, 32);
|
||||
secp256k1_sha256_finalize(&sha, output);
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_sha256 = ecdh_hash_function_sha256;
|
||||
const secp256k1_ecdh_hash_function secp256k1_ecdh_hash_function_default = ecdh_hash_function_sha256;
|
||||
|
||||
int secp256k1_ecdh(const secp256k1_context* ctx, unsigned char *output, const secp256k1_pubkey *point, const unsigned char *scalar, secp256k1_ecdh_hash_function hashfp, void *data) {
|
||||
int ret = 0;
|
||||
int overflow = 0;
|
||||
secp256k1_gej res;
|
||||
secp256k1_ge pt;
|
||||
secp256k1_scalar s;
|
||||
VERIFY_CHECK(ctx != NULL);
|
||||
ARG_CHECK(result != NULL);
|
||||
ARG_CHECK(output != NULL);
|
||||
ARG_CHECK(point != NULL);
|
||||
ARG_CHECK(scalar != NULL);
|
||||
if (hashfp == NULL) {
|
||||
hashfp = secp256k1_ecdh_hash_function_default;
|
||||
}
|
||||
|
||||
secp256k1_pubkey_load(ctx, &pt, point);
|
||||
secp256k1_scalar_set_b32(&s, scalar, &overflow);
|
||||
|
|
@ -27,24 +46,18 @@ int secp256k1_ecdh(const secp256k1_context* ctx, unsigned char *result, const se
|
|||
ret = 0;
|
||||
} else {
|
||||
unsigned char x[32];
|
||||
unsigned char y[1];
|
||||
secp256k1_sha256_t sha;
|
||||
unsigned char y[32];
|
||||
|
||||
secp256k1_ecmult_const(&res, &pt, &s);
|
||||
secp256k1_ecmult_const(&res, &pt, &s, 256);
|
||||
secp256k1_ge_set_gej(&pt, &res);
|
||||
/* Compute a hash of the point in compressed form
|
||||
* Note we cannot use secp256k1_eckey_pubkey_serialize here since it does not
|
||||
* expect its output to be secret and has a timing sidechannel. */
|
||||
|
||||
/* Compute a hash of the point */
|
||||
secp256k1_fe_normalize(&pt.x);
|
||||
secp256k1_fe_normalize(&pt.y);
|
||||
secp256k1_fe_get_b32(x, &pt.x);
|
||||
y[0] = 0x02 | secp256k1_fe_is_odd(&pt.y);
|
||||
secp256k1_fe_get_b32(y, &pt.y);
|
||||
|
||||
secp256k1_sha256_initialize(&sha);
|
||||
secp256k1_sha256_write(&sha, y, sizeof(y));
|
||||
secp256k1_sha256_write(&sha, x, sizeof(x));
|
||||
secp256k1_sha256_finalize(&sha, result);
|
||||
ret = 1;
|
||||
ret = hashfp(output, x, y, data);
|
||||
}
|
||||
|
||||
secp256k1_scalar_clear(&s);
|
||||
|
|
|
|||
|
|
@ -7,6 +7,23 @@
|
|||
#ifndef SECP256K1_MODULE_ECDH_TESTS_H
|
||||
#define SECP256K1_MODULE_ECDH_TESTS_H
|
||||
|
||||
int ecdh_hash_function_test_fail(unsigned char *output, const unsigned char *x, const unsigned char *y, void *data) {
|
||||
(void)output;
|
||||
(void)x;
|
||||
(void)y;
|
||||
(void)data;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int ecdh_hash_function_custom(unsigned char *output, const unsigned char *x, const unsigned char *y, void *data) {
|
||||
(void)data;
|
||||
/* Save x and y as uncompressed public key */
|
||||
output[0] = 0x04;
|
||||
memcpy(output + 1, x, 32);
|
||||
memcpy(output + 33, y, 32);
|
||||
return 1;
|
||||
}
|
||||
|
||||
void test_ecdh_api(void) {
|
||||
/* Setup context that just counts errors */
|
||||
secp256k1_context *tctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN);
|
||||
|
|
@ -21,15 +38,15 @@ void test_ecdh_api(void) {
|
|||
CHECK(secp256k1_ec_pubkey_create(tctx, &point, s_one) == 1);
|
||||
|
||||
/* Check all NULLs are detected */
|
||||
CHECK(secp256k1_ecdh(tctx, res, &point, s_one) == 1);
|
||||
CHECK(secp256k1_ecdh(tctx, res, &point, s_one, NULL, NULL) == 1);
|
||||
CHECK(ecount == 0);
|
||||
CHECK(secp256k1_ecdh(tctx, NULL, &point, s_one) == 0);
|
||||
CHECK(secp256k1_ecdh(tctx, NULL, &point, s_one, NULL, NULL) == 0);
|
||||
CHECK(ecount == 1);
|
||||
CHECK(secp256k1_ecdh(tctx, res, NULL, s_one) == 0);
|
||||
CHECK(secp256k1_ecdh(tctx, res, NULL, s_one, NULL, NULL) == 0);
|
||||
CHECK(ecount == 2);
|
||||
CHECK(secp256k1_ecdh(tctx, res, &point, NULL) == 0);
|
||||
CHECK(secp256k1_ecdh(tctx, res, &point, NULL, NULL, NULL) == 0);
|
||||
CHECK(ecount == 3);
|
||||
CHECK(secp256k1_ecdh(tctx, res, &point, s_one) == 1);
|
||||
CHECK(secp256k1_ecdh(tctx, res, &point, s_one, NULL, NULL) == 1);
|
||||
CHECK(ecount == 3);
|
||||
|
||||
/* Cleanup */
|
||||
|
|
@ -44,29 +61,36 @@ void test_ecdh_generator_basepoint(void) {
|
|||
s_one[31] = 1;
|
||||
/* Check against pubkey creation when the basepoint is the generator */
|
||||
for (i = 0; i < 100; ++i) {
|
||||
secp256k1_sha256_t sha;
|
||||
secp256k1_sha256 sha;
|
||||
unsigned char s_b32[32];
|
||||
unsigned char output_ecdh[32];
|
||||
unsigned char output_ecdh[65];
|
||||
unsigned char output_ser[32];
|
||||
unsigned char point_ser[33];
|
||||
unsigned char point_ser[65];
|
||||
size_t point_ser_len = sizeof(point_ser);
|
||||
secp256k1_scalar s;
|
||||
|
||||
random_scalar_order(&s);
|
||||
secp256k1_scalar_get_b32(s_b32, &s);
|
||||
|
||||
/* compute using ECDH function */
|
||||
CHECK(secp256k1_ec_pubkey_create(ctx, &point[0], s_one) == 1);
|
||||
CHECK(secp256k1_ecdh(ctx, output_ecdh, &point[0], s_b32) == 1);
|
||||
/* compute "explicitly" */
|
||||
CHECK(secp256k1_ec_pubkey_create(ctx, &point[1], s_b32) == 1);
|
||||
|
||||
/* compute using ECDH function with custom hash function */
|
||||
CHECK(secp256k1_ecdh(ctx, output_ecdh, &point[0], s_b32, ecdh_hash_function_custom, NULL) == 1);
|
||||
/* compute "explicitly" */
|
||||
CHECK(secp256k1_ec_pubkey_serialize(ctx, point_ser, &point_ser_len, &point[1], SECP256K1_EC_UNCOMPRESSED) == 1);
|
||||
/* compare */
|
||||
CHECK(memcmp(output_ecdh, point_ser, 65) == 0);
|
||||
|
||||
/* compute using ECDH function with default hash function */
|
||||
CHECK(secp256k1_ecdh(ctx, output_ecdh, &point[0], s_b32, NULL, NULL) == 1);
|
||||
/* compute "explicitly" */
|
||||
CHECK(secp256k1_ec_pubkey_serialize(ctx, point_ser, &point_ser_len, &point[1], SECP256K1_EC_COMPRESSED) == 1);
|
||||
CHECK(point_ser_len == sizeof(point_ser));
|
||||
secp256k1_sha256_initialize(&sha);
|
||||
secp256k1_sha256_write(&sha, point_ser, point_ser_len);
|
||||
secp256k1_sha256_finalize(&sha, output_ser);
|
||||
/* compare */
|
||||
CHECK(memcmp(output_ecdh, output_ser, sizeof(output_ser)) == 0);
|
||||
CHECK(memcmp(output_ecdh, output_ser, 32) == 0);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -89,11 +113,14 @@ void test_bad_scalar(void) {
|
|||
CHECK(secp256k1_ec_pubkey_create(ctx, &point, s_rand) == 1);
|
||||
|
||||
/* Try to multiply it by bad values */
|
||||
CHECK(secp256k1_ecdh(ctx, output, &point, s_zero) == 0);
|
||||
CHECK(secp256k1_ecdh(ctx, output, &point, s_overflow) == 0);
|
||||
CHECK(secp256k1_ecdh(ctx, output, &point, s_zero, NULL, NULL) == 0);
|
||||
CHECK(secp256k1_ecdh(ctx, output, &point, s_overflow, NULL, NULL) == 0);
|
||||
/* ...and a good one */
|
||||
s_overflow[31] -= 1;
|
||||
CHECK(secp256k1_ecdh(ctx, output, &point, s_overflow) == 1);
|
||||
CHECK(secp256k1_ecdh(ctx, output, &point, s_overflow, NULL, NULL) == 1);
|
||||
|
||||
/* Hash function failure results in ecdh failure */
|
||||
CHECK(secp256k1_ecdh(ctx, output, &point, s_overflow, ecdh_hash_function_test_fail, NULL) == 0);
|
||||
}
|
||||
|
||||
void run_ecdh_tests(void) {
|
||||
|
|
|
|||
|
|
@ -376,7 +376,7 @@ static void secp256k1_scalar_reduce_512(secp256k1_scalar *r, const uint64_t *l)
|
|||
/* extract m6 */
|
||||
"movq %%r8, %q6\n"
|
||||
: "=g"(m0), "=g"(m1), "=g"(m2), "=g"(m3), "=g"(m4), "=g"(m5), "=g"(m6)
|
||||
: "S"(l), "n"(SECP256K1_N_C_0), "n"(SECP256K1_N_C_1)
|
||||
: "S"(l), "i"(SECP256K1_N_C_0), "i"(SECP256K1_N_C_1)
|
||||
: "rax", "rdx", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "cc");
|
||||
|
||||
/* Reduce 385 bits into 258. */
|
||||
|
|
@ -455,7 +455,7 @@ static void secp256k1_scalar_reduce_512(secp256k1_scalar *r, const uint64_t *l)
|
|||
/* extract p4 */
|
||||
"movq %%r9, %q4\n"
|
||||
: "=&g"(p0), "=&g"(p1), "=&g"(p2), "=g"(p3), "=g"(p4)
|
||||
: "g"(m0), "g"(m1), "g"(m2), "g"(m3), "g"(m4), "g"(m5), "g"(m6), "n"(SECP256K1_N_C_0), "n"(SECP256K1_N_C_1)
|
||||
: "g"(m0), "g"(m1), "g"(m2), "g"(m3), "g"(m4), "g"(m5), "g"(m6), "i"(SECP256K1_N_C_0), "i"(SECP256K1_N_C_1)
|
||||
: "rax", "rdx", "r8", "r9", "r10", "r11", "r12", "r13", "cc");
|
||||
|
||||
/* Reduce 258 bits into 256. */
|
||||
|
|
@ -501,7 +501,7 @@ static void secp256k1_scalar_reduce_512(secp256k1_scalar *r, const uint64_t *l)
|
|||
/* Extract c */
|
||||
"movq %%r9, %q0\n"
|
||||
: "=g"(c)
|
||||
: "g"(p0), "g"(p1), "g"(p2), "g"(p3), "g"(p4), "D"(r), "n"(SECP256K1_N_C_0), "n"(SECP256K1_N_C_1)
|
||||
: "g"(p0), "g"(p1), "g"(p2), "g"(p3), "g"(p4), "D"(r), "i"(SECP256K1_N_C_0), "i"(SECP256K1_N_C_1)
|
||||
: "rax", "rdx", "r8", "r9", "r10", "cc", "memory");
|
||||
#else
|
||||
uint128_t c;
|
||||
|
|
|
|||
39
src/secp256k1/src/scratch.h
Normal file
39
src/secp256k1/src/scratch.h
Normal file
|
|
@ -0,0 +1,39 @@
|
|||
/**********************************************************************
|
||||
* Copyright (c) 2017 Andrew Poelstra *
|
||||
* Distributed under the MIT software license, see the accompanying *
|
||||
* file COPYING or http://www.opensource.org/licenses/mit-license.php.*
|
||||
**********************************************************************/
|
||||
|
||||
#ifndef _SECP256K1_SCRATCH_
|
||||
#define _SECP256K1_SCRATCH_
|
||||
|
||||
#define SECP256K1_SCRATCH_MAX_FRAMES 5
|
||||
|
||||
/* The typedef is used internally; the struct name is used in the public API
|
||||
* (where it is exposed as a different typedef) */
|
||||
typedef struct secp256k1_scratch_space_struct {
|
||||
void *data[SECP256K1_SCRATCH_MAX_FRAMES];
|
||||
size_t offset[SECP256K1_SCRATCH_MAX_FRAMES];
|
||||
size_t frame_size[SECP256K1_SCRATCH_MAX_FRAMES];
|
||||
size_t frame;
|
||||
size_t max_size;
|
||||
const secp256k1_callback* error_callback;
|
||||
} secp256k1_scratch;
|
||||
|
||||
static secp256k1_scratch* secp256k1_scratch_create(const secp256k1_callback* error_callback, size_t max_size);
|
||||
|
||||
static void secp256k1_scratch_destroy(secp256k1_scratch* scratch);
|
||||
|
||||
/** Attempts to allocate a new stack frame with `n` available bytes. Returns 1 on success, 0 on failure */
|
||||
static int secp256k1_scratch_allocate_frame(secp256k1_scratch* scratch, size_t n, size_t objects);
|
||||
|
||||
/** Deallocates a stack frame */
|
||||
static void secp256k1_scratch_deallocate_frame(secp256k1_scratch* scratch);
|
||||
|
||||
/** Returns the maximum allocation the scratch space will allow */
|
||||
static size_t secp256k1_scratch_max_allocation(const secp256k1_scratch* scratch, size_t n_objects);
|
||||
|
||||
/** Returns a pointer into the most recently allocated frame, or NULL if there is insufficient available space */
|
||||
static void *secp256k1_scratch_alloc(secp256k1_scratch* scratch, size_t n);
|
||||
|
||||
#endif
|
||||
86
src/secp256k1/src/scratch_impl.h
Normal file
86
src/secp256k1/src/scratch_impl.h
Normal file
|
|
@ -0,0 +1,86 @@
|
|||
/**********************************************************************
|
||||
* Copyright (c) 2017 Andrew Poelstra *
|
||||
* Distributed under the MIT software license, see the accompanying *
|
||||
* file COPYING or http://www.opensource.org/licenses/mit-license.php.*
|
||||
**********************************************************************/
|
||||
|
||||
#ifndef _SECP256K1_SCRATCH_IMPL_H_
|
||||
#define _SECP256K1_SCRATCH_IMPL_H_
|
||||
|
||||
#include "scratch.h"
|
||||
|
||||
/* Using 16 bytes alignment because common architectures never have alignment
|
||||
* requirements above 8 for any of the types we care about. In addition we
|
||||
* leave some room because currently we don't care about a few bytes.
|
||||
* TODO: Determine this at configure time. */
|
||||
#define ALIGNMENT 16
|
||||
|
||||
static secp256k1_scratch* secp256k1_scratch_create(const secp256k1_callback* error_callback, size_t max_size) {
|
||||
secp256k1_scratch* ret = (secp256k1_scratch*)checked_malloc(error_callback, sizeof(*ret));
|
||||
if (ret != NULL) {
|
||||
memset(ret, 0, sizeof(*ret));
|
||||
ret->max_size = max_size;
|
||||
ret->error_callback = error_callback;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void secp256k1_scratch_destroy(secp256k1_scratch* scratch) {
|
||||
if (scratch != NULL) {
|
||||
VERIFY_CHECK(scratch->frame == 0);
|
||||
free(scratch);
|
||||
}
|
||||
}
|
||||
|
||||
static size_t secp256k1_scratch_max_allocation(const secp256k1_scratch* scratch, size_t objects) {
|
||||
size_t i = 0;
|
||||
size_t allocated = 0;
|
||||
for (i = 0; i < scratch->frame; i++) {
|
||||
allocated += scratch->frame_size[i];
|
||||
}
|
||||
if (scratch->max_size - allocated <= objects * ALIGNMENT) {
|
||||
return 0;
|
||||
}
|
||||
return scratch->max_size - allocated - objects * ALIGNMENT;
|
||||
}
|
||||
|
||||
static int secp256k1_scratch_allocate_frame(secp256k1_scratch* scratch, size_t n, size_t objects) {
|
||||
VERIFY_CHECK(scratch->frame < SECP256K1_SCRATCH_MAX_FRAMES);
|
||||
|
||||
if (n <= secp256k1_scratch_max_allocation(scratch, objects)) {
|
||||
n += objects * ALIGNMENT;
|
||||
scratch->data[scratch->frame] = checked_malloc(scratch->error_callback, n);
|
||||
if (scratch->data[scratch->frame] == NULL) {
|
||||
return 0;
|
||||
}
|
||||
scratch->frame_size[scratch->frame] = n;
|
||||
scratch->offset[scratch->frame] = 0;
|
||||
scratch->frame++;
|
||||
return 1;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
static void secp256k1_scratch_deallocate_frame(secp256k1_scratch* scratch) {
|
||||
VERIFY_CHECK(scratch->frame > 0);
|
||||
scratch->frame -= 1;
|
||||
free(scratch->data[scratch->frame]);
|
||||
}
|
||||
|
||||
static void *secp256k1_scratch_alloc(secp256k1_scratch* scratch, size_t size) {
|
||||
void *ret;
|
||||
size_t frame = scratch->frame - 1;
|
||||
size = ((size + ALIGNMENT - 1) / ALIGNMENT) * ALIGNMENT;
|
||||
|
||||
if (scratch->frame == 0 || size + scratch->offset[frame] > scratch->frame_size[frame]) {
|
||||
return NULL;
|
||||
}
|
||||
ret = (void *) ((unsigned char *) scratch->data[frame] + scratch->offset[frame]);
|
||||
memset(ret, 0, size);
|
||||
scratch->offset[frame] += size;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -17,6 +17,7 @@
|
|||
#include "ecdsa_impl.h"
|
||||
#include "eckey_impl.h"
|
||||
#include "hash_impl.h"
|
||||
#include "scratch_impl.h"
|
||||
|
||||
#define ARG_CHECK(cond) do { \
|
||||
if (EXPECT(!(cond), 0)) { \
|
||||
|
|
@ -55,6 +56,14 @@ struct secp256k1_context_struct {
|
|||
secp256k1_callback error_callback;
|
||||
};
|
||||
|
||||
static const secp256k1_context secp256k1_context_no_precomp_ = {
|
||||
{ 0 },
|
||||
{ 0 },
|
||||
{ default_illegal_callback_fn, 0 },
|
||||
{ default_error_callback_fn, 0 }
|
||||
};
|
||||
const secp256k1_context *secp256k1_context_no_precomp = &secp256k1_context_no_precomp_;
|
||||
|
||||
secp256k1_context* secp256k1_context_create(unsigned int flags) {
|
||||
secp256k1_context* ret = (secp256k1_context*)checked_malloc(&default_error_callback, sizeof(secp256k1_context));
|
||||
ret->illegal_callback = default_illegal_callback;
|
||||
|
|
@ -90,6 +99,7 @@ secp256k1_context* secp256k1_context_clone(const secp256k1_context* ctx) {
|
|||
}
|
||||
|
||||
void secp256k1_context_destroy(secp256k1_context* ctx) {
|
||||
CHECK(ctx != secp256k1_context_no_precomp);
|
||||
if (ctx != NULL) {
|
||||
secp256k1_ecmult_context_clear(&ctx->ecmult_ctx);
|
||||
secp256k1_ecmult_gen_context_clear(&ctx->ecmult_gen_ctx);
|
||||
|
|
@ -99,6 +109,7 @@ void secp256k1_context_destroy(secp256k1_context* ctx) {
|
|||
}
|
||||
|
||||
void secp256k1_context_set_illegal_callback(secp256k1_context* ctx, void (*fun)(const char* message, void* data), const void* data) {
|
||||
CHECK(ctx != secp256k1_context_no_precomp);
|
||||
if (fun == NULL) {
|
||||
fun = default_illegal_callback_fn;
|
||||
}
|
||||
|
|
@ -107,6 +118,7 @@ void secp256k1_context_set_illegal_callback(secp256k1_context* ctx, void (*fun)(
|
|||
}
|
||||
|
||||
void secp256k1_context_set_error_callback(secp256k1_context* ctx, void (*fun)(const char* message, void* data), const void* data) {
|
||||
CHECK(ctx != secp256k1_context_no_precomp);
|
||||
if (fun == NULL) {
|
||||
fun = default_error_callback_fn;
|
||||
}
|
||||
|
|
@ -114,13 +126,22 @@ void secp256k1_context_set_error_callback(secp256k1_context* ctx, void (*fun)(co
|
|||
ctx->error_callback.data = data;
|
||||
}
|
||||
|
||||
secp256k1_scratch_space* secp256k1_scratch_space_create(const secp256k1_context* ctx, size_t max_size) {
|
||||
VERIFY_CHECK(ctx != NULL);
|
||||
return secp256k1_scratch_create(&ctx->error_callback, max_size);
|
||||
}
|
||||
|
||||
void secp256k1_scratch_space_destroy(secp256k1_scratch_space* scratch) {
|
||||
secp256k1_scratch_destroy(scratch);
|
||||
}
|
||||
|
||||
static int secp256k1_pubkey_load(const secp256k1_context* ctx, secp256k1_ge* ge, const secp256k1_pubkey* pubkey) {
|
||||
if (sizeof(secp256k1_ge_storage) == 64) {
|
||||
/* When the secp256k1_ge_storage type is exactly 64 byte, use its
|
||||
* representation inside secp256k1_pubkey, as conversion is very fast.
|
||||
* Note that secp256k1_pubkey_save must use the same representation. */
|
||||
secp256k1_ge_storage s;
|
||||
memcpy(&s, &pubkey->data[0], 64);
|
||||
memcpy(&s, &pubkey->data[0], sizeof(s));
|
||||
secp256k1_ge_from_storage(ge, &s);
|
||||
} else {
|
||||
/* Otherwise, fall back to 32-byte big endian for X and Y. */
|
||||
|
|
@ -137,7 +158,7 @@ static void secp256k1_pubkey_save(secp256k1_pubkey* pubkey, secp256k1_ge* ge) {
|
|||
if (sizeof(secp256k1_ge_storage) == 64) {
|
||||
secp256k1_ge_storage s;
|
||||
secp256k1_ge_to_storage(&s, ge);
|
||||
memcpy(&pubkey->data[0], &s, 64);
|
||||
memcpy(&pubkey->data[0], &s, sizeof(s));
|
||||
} else {
|
||||
VERIFY_CHECK(!secp256k1_ge_is_infinity(ge));
|
||||
secp256k1_fe_normalize_var(&ge->x);
|
||||
|
|
@ -307,10 +328,15 @@ int secp256k1_ecdsa_verify(const secp256k1_context* ctx, const secp256k1_ecdsa_s
|
|||
secp256k1_ecdsa_sig_verify(&ctx->ecmult_ctx, &r, &s, &q, &m));
|
||||
}
|
||||
|
||||
static SECP256K1_INLINE void buffer_append(unsigned char *buf, unsigned int *offset, const void *data, unsigned int len) {
|
||||
memcpy(buf + *offset, data, len);
|
||||
*offset += len;
|
||||
}
|
||||
|
||||
static int nonce_function_rfc6979(unsigned char *nonce32, const unsigned char *msg32, const unsigned char *key32, const unsigned char *algo16, void *data, unsigned int counter) {
|
||||
unsigned char keydata[112];
|
||||
int keylen = 64;
|
||||
secp256k1_rfc6979_hmac_sha256_t rng;
|
||||
unsigned int offset = 0;
|
||||
secp256k1_rfc6979_hmac_sha256 rng;
|
||||
unsigned int i;
|
||||
/* We feed a byte array to the PRNG as input, consisting of:
|
||||
* - the private key (32 bytes) and message (32 bytes), see RFC 6979 3.2d.
|
||||
|
|
@ -320,17 +346,15 @@ static int nonce_function_rfc6979(unsigned char *nonce32, const unsigned char *m
|
|||
* different argument mixtures to emulate each other and result in the same
|
||||
* nonces.
|
||||
*/
|
||||
memcpy(keydata, key32, 32);
|
||||
memcpy(keydata + 32, msg32, 32);
|
||||
buffer_append(keydata, &offset, key32, 32);
|
||||
buffer_append(keydata, &offset, msg32, 32);
|
||||
if (data != NULL) {
|
||||
memcpy(keydata + 64, data, 32);
|
||||
keylen = 96;
|
||||
buffer_append(keydata, &offset, data, 32);
|
||||
}
|
||||
if (algo16 != NULL) {
|
||||
memcpy(keydata + keylen, algo16, 16);
|
||||
keylen += 16;
|
||||
buffer_append(keydata, &offset, algo16, 16);
|
||||
}
|
||||
secp256k1_rfc6979_hmac_sha256_initialize(&rng, keydata, keylen);
|
||||
secp256k1_rfc6979_hmac_sha256_initialize(&rng, keydata, offset);
|
||||
memset(keydata, 0, sizeof(keydata));
|
||||
for (i = 0; i <= counter; i++) {
|
||||
secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32);
|
||||
|
|
@ -546,8 +570,9 @@ int secp256k1_ec_pubkey_tweak_mul(const secp256k1_context* ctx, secp256k1_pubkey
|
|||
|
||||
int secp256k1_context_randomize(secp256k1_context* ctx, const unsigned char *seed32) {
|
||||
VERIFY_CHECK(ctx != NULL);
|
||||
ARG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx));
|
||||
secp256k1_ecmult_gen_blind(&ctx->ecmult_gen_ctx, seed32);
|
||||
if (secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx)) {
|
||||
secp256k1_ecmult_gen_blind(&ctx->ecmult_gen_ctx, seed32);
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -13,7 +13,7 @@
|
|||
#include "testrand.h"
|
||||
#include "hash.h"
|
||||
|
||||
static secp256k1_rfc6979_hmac_sha256_t secp256k1_test_rng;
|
||||
static secp256k1_rfc6979_hmac_sha256 secp256k1_test_rng;
|
||||
static uint32_t secp256k1_test_rng_precomputed[8];
|
||||
static int secp256k1_test_rng_precomputed_used = 8;
|
||||
static uint64_t secp256k1_test_rng_integer;
|
||||
|
|
|
|||
|
|
@ -23,6 +23,9 @@
|
|||
#include "openssl/ec.h"
|
||||
#include "openssl/ecdsa.h"
|
||||
#include "openssl/obj_mac.h"
|
||||
# if OPENSSL_VERSION_NUMBER < 0x10100000L
|
||||
void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps) {*pr = sig->r; *ps = sig->s;}
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#include "contrib/lax_der_parsing.c"
|
||||
|
|
@ -215,8 +218,12 @@ void run_context_tests(void) {
|
|||
CHECK(ecount == 3);
|
||||
CHECK(secp256k1_ec_pubkey_tweak_mul(vrfy, &pubkey, ctmp) == 1);
|
||||
CHECK(ecount == 3);
|
||||
CHECK(secp256k1_context_randomize(vrfy, ctmp) == 0);
|
||||
CHECK(ecount == 4);
|
||||
CHECK(secp256k1_context_randomize(vrfy, ctmp) == 1);
|
||||
CHECK(ecount == 3);
|
||||
CHECK(secp256k1_context_randomize(vrfy, NULL) == 1);
|
||||
CHECK(ecount == 3);
|
||||
CHECK(secp256k1_context_randomize(sign, ctmp) == 1);
|
||||
CHECK(ecount2 == 14);
|
||||
CHECK(secp256k1_context_randomize(sign, NULL) == 1);
|
||||
CHECK(ecount2 == 14);
|
||||
secp256k1_context_set_illegal_callback(vrfy, NULL, NULL);
|
||||
|
|
@ -248,6 +255,44 @@ void run_context_tests(void) {
|
|||
secp256k1_context_destroy(NULL);
|
||||
}
|
||||
|
||||
void run_scratch_tests(void) {
|
||||
int32_t ecount = 0;
|
||||
secp256k1_context *none = secp256k1_context_create(SECP256K1_CONTEXT_NONE);
|
||||
secp256k1_scratch_space *scratch;
|
||||
|
||||
/* Test public API */
|
||||
secp256k1_context_set_illegal_callback(none, counting_illegal_callback_fn, &ecount);
|
||||
|
||||
scratch = secp256k1_scratch_space_create(none, 1000);
|
||||
CHECK(scratch != NULL);
|
||||
CHECK(ecount == 0);
|
||||
|
||||
/* Test internal API */
|
||||
CHECK(secp256k1_scratch_max_allocation(scratch, 0) == 1000);
|
||||
CHECK(secp256k1_scratch_max_allocation(scratch, 1) < 1000);
|
||||
|
||||
/* Allocating 500 bytes with no frame fails */
|
||||
CHECK(secp256k1_scratch_alloc(scratch, 500) == NULL);
|
||||
CHECK(secp256k1_scratch_max_allocation(scratch, 0) == 1000);
|
||||
|
||||
/* ...but pushing a new stack frame does affect the max allocation */
|
||||
CHECK(secp256k1_scratch_allocate_frame(scratch, 500, 1 == 1));
|
||||
CHECK(secp256k1_scratch_max_allocation(scratch, 1) < 500); /* 500 - ALIGNMENT */
|
||||
CHECK(secp256k1_scratch_alloc(scratch, 500) != NULL);
|
||||
CHECK(secp256k1_scratch_alloc(scratch, 500) == NULL);
|
||||
|
||||
CHECK(secp256k1_scratch_allocate_frame(scratch, 500, 1) == 0);
|
||||
|
||||
/* ...and this effect is undone by popping the frame */
|
||||
secp256k1_scratch_deallocate_frame(scratch);
|
||||
CHECK(secp256k1_scratch_max_allocation(scratch, 0) == 1000);
|
||||
CHECK(secp256k1_scratch_alloc(scratch, 500) == NULL);
|
||||
|
||||
/* cleanup */
|
||||
secp256k1_scratch_space_destroy(scratch);
|
||||
secp256k1_context_destroy(none);
|
||||
}
|
||||
|
||||
/***** HASH TESTS *****/
|
||||
|
||||
void run_sha256_tests(void) {
|
||||
|
|
@ -270,7 +315,7 @@ void run_sha256_tests(void) {
|
|||
int i;
|
||||
for (i = 0; i < 8; i++) {
|
||||
unsigned char out[32];
|
||||
secp256k1_sha256_t hasher;
|
||||
secp256k1_sha256 hasher;
|
||||
secp256k1_sha256_initialize(&hasher);
|
||||
secp256k1_sha256_write(&hasher, (const unsigned char*)(inputs[i]), strlen(inputs[i]));
|
||||
secp256k1_sha256_finalize(&hasher, out);
|
||||
|
|
@ -313,7 +358,7 @@ void run_hmac_sha256_tests(void) {
|
|||
};
|
||||
int i;
|
||||
for (i = 0; i < 6; i++) {
|
||||
secp256k1_hmac_sha256_t hasher;
|
||||
secp256k1_hmac_sha256 hasher;
|
||||
unsigned char out[32];
|
||||
secp256k1_hmac_sha256_initialize(&hasher, (const unsigned char*)(keys[i]), strlen(keys[i]));
|
||||
secp256k1_hmac_sha256_write(&hasher, (const unsigned char*)(inputs[i]), strlen(inputs[i]));
|
||||
|
|
@ -345,7 +390,7 @@ void run_rfc6979_hmac_sha256_tests(void) {
|
|||
{0x75, 0x97, 0x88, 0x7c, 0xbd, 0x76, 0x32, 0x1f, 0x32, 0xe3, 0x04, 0x40, 0x67, 0x9a, 0x22, 0xcf, 0x7f, 0x8d, 0x9d, 0x2e, 0xac, 0x39, 0x0e, 0x58, 0x1f, 0xea, 0x09, 0x1c, 0xe2, 0x02, 0xba, 0x94}
|
||||
};
|
||||
|
||||
secp256k1_rfc6979_hmac_sha256_t rng;
|
||||
secp256k1_rfc6979_hmac_sha256 rng;
|
||||
unsigned char out[32];
|
||||
int i;
|
||||
|
||||
|
|
@ -2054,7 +2099,6 @@ void test_ge(void) {
|
|||
/* Test batch gej -> ge conversion with and without known z ratios. */
|
||||
{
|
||||
secp256k1_fe *zr = (secp256k1_fe *)checked_malloc(&ctx->error_callback, (4 * runs + 1) * sizeof(secp256k1_fe));
|
||||
secp256k1_ge *ge_set_table = (secp256k1_ge *)checked_malloc(&ctx->error_callback, (4 * runs + 1) * sizeof(secp256k1_ge));
|
||||
secp256k1_ge *ge_set_all = (secp256k1_ge *)checked_malloc(&ctx->error_callback, (4 * runs + 1) * sizeof(secp256k1_ge));
|
||||
for (i = 0; i < 4 * runs + 1; i++) {
|
||||
/* Compute gej[i + 1].z / gez[i].z (with gej[n].z taken to be 1). */
|
||||
|
|
@ -2062,20 +2106,33 @@ void test_ge(void) {
|
|||
secp256k1_fe_mul(&zr[i + 1], &zinv[i], &gej[i + 1].z);
|
||||
}
|
||||
}
|
||||
secp256k1_ge_set_table_gej_var(ge_set_table, gej, zr, 4 * runs + 1);
|
||||
secp256k1_ge_set_all_gej_var(ge_set_all, gej, 4 * runs + 1, &ctx->error_callback);
|
||||
secp256k1_ge_set_all_gej_var(ge_set_all, gej, 4 * runs + 1);
|
||||
for (i = 0; i < 4 * runs + 1; i++) {
|
||||
secp256k1_fe s;
|
||||
random_fe_non_zero(&s);
|
||||
secp256k1_gej_rescale(&gej[i], &s);
|
||||
ge_equals_gej(&ge_set_table[i], &gej[i]);
|
||||
ge_equals_gej(&ge_set_all[i], &gej[i]);
|
||||
}
|
||||
free(ge_set_table);
|
||||
free(ge_set_all);
|
||||
free(zr);
|
||||
}
|
||||
|
||||
/* Test batch gej -> ge conversion with many infinities. */
|
||||
for (i = 0; i < 4 * runs + 1; i++) {
|
||||
random_group_element_test(&ge[i]);
|
||||
/* randomly set half the points to infinitiy */
|
||||
if(secp256k1_fe_is_odd(&ge[i].x)) {
|
||||
secp256k1_ge_set_infinity(&ge[i]);
|
||||
}
|
||||
secp256k1_gej_set_ge(&gej[i], &ge[i]);
|
||||
}
|
||||
/* batch invert */
|
||||
secp256k1_ge_set_all_gej_var(ge, gej, 4 * runs + 1);
|
||||
/* check result */
|
||||
for (i = 0; i < 4 * runs + 1; i++) {
|
||||
ge_equals_gej(&ge[i], &gej[i]);
|
||||
}
|
||||
|
||||
free(ge);
|
||||
free(gej);
|
||||
free(zinv);
|
||||
|
|
@ -2405,7 +2462,7 @@ void ecmult_const_random_mult(void) {
|
|||
0xb84e4e1b, 0xfb77e21f, 0x96baae2a, 0x63dec956
|
||||
);
|
||||
secp256k1_gej b;
|
||||
secp256k1_ecmult_const(&b, &a, &xn);
|
||||
secp256k1_ecmult_const(&b, &a, &xn, 256);
|
||||
|
||||
CHECK(secp256k1_ge_is_valid_var(&a));
|
||||
ge_equals_gej(&expected_b, &b);
|
||||
|
|
@ -2421,12 +2478,12 @@ void ecmult_const_commutativity(void) {
|
|||
random_scalar_order_test(&a);
|
||||
random_scalar_order_test(&b);
|
||||
|
||||
secp256k1_ecmult_const(&res1, &secp256k1_ge_const_g, &a);
|
||||
secp256k1_ecmult_const(&res2, &secp256k1_ge_const_g, &b);
|
||||
secp256k1_ecmult_const(&res1, &secp256k1_ge_const_g, &a, 256);
|
||||
secp256k1_ecmult_const(&res2, &secp256k1_ge_const_g, &b, 256);
|
||||
secp256k1_ge_set_gej(&mid1, &res1);
|
||||
secp256k1_ge_set_gej(&mid2, &res2);
|
||||
secp256k1_ecmult_const(&res1, &mid1, &b);
|
||||
secp256k1_ecmult_const(&res2, &mid2, &a);
|
||||
secp256k1_ecmult_const(&res1, &mid1, &b, 256);
|
||||
secp256k1_ecmult_const(&res2, &mid2, &a, 256);
|
||||
secp256k1_ge_set_gej(&mid1, &res1);
|
||||
secp256k1_ge_set_gej(&mid2, &res2);
|
||||
ge_equals_ge(&mid1, &mid2);
|
||||
|
|
@ -2442,13 +2499,13 @@ void ecmult_const_mult_zero_one(void) {
|
|||
secp256k1_scalar_negate(&negone, &one);
|
||||
|
||||
random_group_element_test(&point);
|
||||
secp256k1_ecmult_const(&res1, &point, &zero);
|
||||
secp256k1_ecmult_const(&res1, &point, &zero, 3);
|
||||
secp256k1_ge_set_gej(&res2, &res1);
|
||||
CHECK(secp256k1_ge_is_infinity(&res2));
|
||||
secp256k1_ecmult_const(&res1, &point, &one);
|
||||
secp256k1_ecmult_const(&res1, &point, &one, 2);
|
||||
secp256k1_ge_set_gej(&res2, &res1);
|
||||
ge_equals_ge(&res2, &point);
|
||||
secp256k1_ecmult_const(&res1, &point, &negone);
|
||||
secp256k1_ecmult_const(&res1, &point, &negone, 256);
|
||||
secp256k1_gej_neg(&res1, &res1);
|
||||
secp256k1_ge_set_gej(&res2, &res1);
|
||||
ge_equals_ge(&res2, &point);
|
||||
|
|
@ -2474,7 +2531,7 @@ void ecmult_const_chain_multiply(void) {
|
|||
for (i = 0; i < 100; ++i) {
|
||||
secp256k1_ge tmp;
|
||||
secp256k1_ge_set_gej(&tmp, &point);
|
||||
secp256k1_ecmult_const(&point, &tmp, &scalar);
|
||||
secp256k1_ecmult_const(&point, &tmp, &scalar, 256);
|
||||
}
|
||||
secp256k1_ge_set_gej(&res, &point);
|
||||
ge_equals_gej(&res, &expected_point);
|
||||
|
|
@ -2487,6 +2544,446 @@ void run_ecmult_const_tests(void) {
|
|||
ecmult_const_chain_multiply();
|
||||
}
|
||||
|
||||
typedef struct {
|
||||
secp256k1_scalar *sc;
|
||||
secp256k1_ge *pt;
|
||||
} ecmult_multi_data;
|
||||
|
||||
static int ecmult_multi_callback(secp256k1_scalar *sc, secp256k1_ge *pt, size_t idx, void *cbdata) {
|
||||
ecmult_multi_data *data = (ecmult_multi_data*) cbdata;
|
||||
*sc = data->sc[idx];
|
||||
*pt = data->pt[idx];
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int ecmult_multi_false_callback(secp256k1_scalar *sc, secp256k1_ge *pt, size_t idx, void *cbdata) {
|
||||
(void)sc;
|
||||
(void)pt;
|
||||
(void)idx;
|
||||
(void)cbdata;
|
||||
return 0;
|
||||
}
|
||||
|
||||
void test_ecmult_multi(secp256k1_scratch *scratch, secp256k1_ecmult_multi_func ecmult_multi) {
|
||||
int ncount;
|
||||
secp256k1_scalar szero;
|
||||
secp256k1_scalar sc[32];
|
||||
secp256k1_ge pt[32];
|
||||
secp256k1_gej r;
|
||||
secp256k1_gej r2;
|
||||
ecmult_multi_data data;
|
||||
secp256k1_scratch *scratch_empty;
|
||||
|
||||
data.sc = sc;
|
||||
data.pt = pt;
|
||||
secp256k1_scalar_set_int(&szero, 0);
|
||||
|
||||
/* No points to multiply */
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, NULL, ecmult_multi_callback, &data, 0));
|
||||
|
||||
/* Check 1- and 2-point multiplies against ecmult */
|
||||
for (ncount = 0; ncount < count; ncount++) {
|
||||
secp256k1_ge ptg;
|
||||
secp256k1_gej ptgj;
|
||||
random_scalar_order(&sc[0]);
|
||||
random_scalar_order(&sc[1]);
|
||||
|
||||
random_group_element_test(&ptg);
|
||||
secp256k1_gej_set_ge(&ptgj, &ptg);
|
||||
pt[0] = ptg;
|
||||
pt[1] = secp256k1_ge_const_g;
|
||||
|
||||
/* only G scalar */
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &r2, &ptgj, &szero, &sc[0]);
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &sc[0], ecmult_multi_callback, &data, 0));
|
||||
secp256k1_gej_neg(&r2, &r2);
|
||||
secp256k1_gej_add_var(&r, &r, &r2, NULL);
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
|
||||
/* 1-point */
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &r2, &ptgj, &sc[0], &szero);
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, 1));
|
||||
secp256k1_gej_neg(&r2, &r2);
|
||||
secp256k1_gej_add_var(&r, &r, &r2, NULL);
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
|
||||
/* Try to multiply 1 point, but scratch space is empty */
|
||||
scratch_empty = secp256k1_scratch_create(&ctx->error_callback, 0);
|
||||
CHECK(!ecmult_multi(&ctx->ecmult_ctx, scratch_empty, &r, &szero, ecmult_multi_callback, &data, 1));
|
||||
secp256k1_scratch_destroy(scratch_empty);
|
||||
|
||||
/* Try to multiply 1 point, but callback returns false */
|
||||
CHECK(!ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_false_callback, &data, 1));
|
||||
|
||||
/* 2-point */
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &r2, &ptgj, &sc[0], &sc[1]);
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, 2));
|
||||
secp256k1_gej_neg(&r2, &r2);
|
||||
secp256k1_gej_add_var(&r, &r, &r2, NULL);
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
|
||||
/* 2-point with G scalar */
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &r2, &ptgj, &sc[0], &sc[1]);
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &sc[1], ecmult_multi_callback, &data, 1));
|
||||
secp256k1_gej_neg(&r2, &r2);
|
||||
secp256k1_gej_add_var(&r, &r, &r2, NULL);
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
}
|
||||
|
||||
/* Check infinite outputs of various forms */
|
||||
for (ncount = 0; ncount < count; ncount++) {
|
||||
secp256k1_ge ptg;
|
||||
size_t i, j;
|
||||
size_t sizes[] = { 2, 10, 32 };
|
||||
|
||||
for (j = 0; j < 3; j++) {
|
||||
for (i = 0; i < 32; i++) {
|
||||
random_scalar_order(&sc[i]);
|
||||
secp256k1_ge_set_infinity(&pt[i]);
|
||||
}
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, sizes[j]));
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
}
|
||||
|
||||
for (j = 0; j < 3; j++) {
|
||||
for (i = 0; i < 32; i++) {
|
||||
random_group_element_test(&ptg);
|
||||
pt[i] = ptg;
|
||||
secp256k1_scalar_set_int(&sc[i], 0);
|
||||
}
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, sizes[j]));
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
}
|
||||
|
||||
for (j = 0; j < 3; j++) {
|
||||
random_group_element_test(&ptg);
|
||||
for (i = 0; i < 16; i++) {
|
||||
random_scalar_order(&sc[2*i]);
|
||||
secp256k1_scalar_negate(&sc[2*i + 1], &sc[2*i]);
|
||||
pt[2 * i] = ptg;
|
||||
pt[2 * i + 1] = ptg;
|
||||
}
|
||||
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, sizes[j]));
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
|
||||
random_scalar_order(&sc[0]);
|
||||
for (i = 0; i < 16; i++) {
|
||||
random_group_element_test(&ptg);
|
||||
|
||||
sc[2*i] = sc[0];
|
||||
sc[2*i+1] = sc[0];
|
||||
pt[2 * i] = ptg;
|
||||
secp256k1_ge_neg(&pt[2*i+1], &pt[2*i]);
|
||||
}
|
||||
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, sizes[j]));
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
}
|
||||
|
||||
random_group_element_test(&ptg);
|
||||
secp256k1_scalar_set_int(&sc[0], 0);
|
||||
pt[0] = ptg;
|
||||
for (i = 1; i < 32; i++) {
|
||||
pt[i] = ptg;
|
||||
|
||||
random_scalar_order(&sc[i]);
|
||||
secp256k1_scalar_add(&sc[0], &sc[0], &sc[i]);
|
||||
secp256k1_scalar_negate(&sc[i], &sc[i]);
|
||||
}
|
||||
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, 32));
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
}
|
||||
|
||||
/* Check random points, constant scalar */
|
||||
for (ncount = 0; ncount < count; ncount++) {
|
||||
size_t i;
|
||||
secp256k1_gej_set_infinity(&r);
|
||||
|
||||
random_scalar_order(&sc[0]);
|
||||
for (i = 0; i < 20; i++) {
|
||||
secp256k1_ge ptg;
|
||||
sc[i] = sc[0];
|
||||
random_group_element_test(&ptg);
|
||||
pt[i] = ptg;
|
||||
secp256k1_gej_add_ge_var(&r, &r, &pt[i], NULL);
|
||||
}
|
||||
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &r2, &r, &sc[0], &szero);
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, 20));
|
||||
secp256k1_gej_neg(&r2, &r2);
|
||||
secp256k1_gej_add_var(&r, &r, &r2, NULL);
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
}
|
||||
|
||||
/* Check random scalars, constant point */
|
||||
for (ncount = 0; ncount < count; ncount++) {
|
||||
size_t i;
|
||||
secp256k1_ge ptg;
|
||||
secp256k1_gej p0j;
|
||||
secp256k1_scalar rs;
|
||||
secp256k1_scalar_set_int(&rs, 0);
|
||||
|
||||
random_group_element_test(&ptg);
|
||||
for (i = 0; i < 20; i++) {
|
||||
random_scalar_order(&sc[i]);
|
||||
pt[i] = ptg;
|
||||
secp256k1_scalar_add(&rs, &rs, &sc[i]);
|
||||
}
|
||||
|
||||
secp256k1_gej_set_ge(&p0j, &pt[0]);
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &r2, &p0j, &rs, &szero);
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, 20));
|
||||
secp256k1_gej_neg(&r2, &r2);
|
||||
secp256k1_gej_add_var(&r, &r, &r2, NULL);
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
}
|
||||
|
||||
/* Sanity check that zero scalars don't cause problems */
|
||||
for (ncount = 0; ncount < 20; ncount++) {
|
||||
random_scalar_order(&sc[ncount]);
|
||||
random_group_element_test(&pt[ncount]);
|
||||
}
|
||||
|
||||
secp256k1_scalar_clear(&sc[0]);
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, 20));
|
||||
secp256k1_scalar_clear(&sc[1]);
|
||||
secp256k1_scalar_clear(&sc[2]);
|
||||
secp256k1_scalar_clear(&sc[3]);
|
||||
secp256k1_scalar_clear(&sc[4]);
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, 6));
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &r, &szero, ecmult_multi_callback, &data, 5));
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
|
||||
/* Run through s0*(t0*P) + s1*(t1*P) exhaustively for many small values of s0, s1, t0, t1 */
|
||||
{
|
||||
const size_t TOP = 8;
|
||||
size_t s0i, s1i;
|
||||
size_t t0i, t1i;
|
||||
secp256k1_ge ptg;
|
||||
secp256k1_gej ptgj;
|
||||
|
||||
random_group_element_test(&ptg);
|
||||
secp256k1_gej_set_ge(&ptgj, &ptg);
|
||||
|
||||
for(t0i = 0; t0i < TOP; t0i++) {
|
||||
for(t1i = 0; t1i < TOP; t1i++) {
|
||||
secp256k1_gej t0p, t1p;
|
||||
secp256k1_scalar t0, t1;
|
||||
|
||||
secp256k1_scalar_set_int(&t0, (t0i + 1) / 2);
|
||||
secp256k1_scalar_cond_negate(&t0, t0i & 1);
|
||||
secp256k1_scalar_set_int(&t1, (t1i + 1) / 2);
|
||||
secp256k1_scalar_cond_negate(&t1, t1i & 1);
|
||||
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &t0p, &ptgj, &t0, &szero);
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &t1p, &ptgj, &t1, &szero);
|
||||
|
||||
for(s0i = 0; s0i < TOP; s0i++) {
|
||||
for(s1i = 0; s1i < TOP; s1i++) {
|
||||
secp256k1_scalar tmp1, tmp2;
|
||||
secp256k1_gej expected, actual;
|
||||
|
||||
secp256k1_ge_set_gej(&pt[0], &t0p);
|
||||
secp256k1_ge_set_gej(&pt[1], &t1p);
|
||||
|
||||
secp256k1_scalar_set_int(&sc[0], (s0i + 1) / 2);
|
||||
secp256k1_scalar_cond_negate(&sc[0], s0i & 1);
|
||||
secp256k1_scalar_set_int(&sc[1], (s1i + 1) / 2);
|
||||
secp256k1_scalar_cond_negate(&sc[1], s1i & 1);
|
||||
|
||||
secp256k1_scalar_mul(&tmp1, &t0, &sc[0]);
|
||||
secp256k1_scalar_mul(&tmp2, &t1, &sc[1]);
|
||||
secp256k1_scalar_add(&tmp1, &tmp1, &tmp2);
|
||||
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &expected, &ptgj, &tmp1, &szero);
|
||||
CHECK(ecmult_multi(&ctx->ecmult_ctx, scratch, &actual, &szero, ecmult_multi_callback, &data, 2));
|
||||
secp256k1_gej_neg(&expected, &expected);
|
||||
secp256k1_gej_add_var(&actual, &actual, &expected, NULL);
|
||||
CHECK(secp256k1_gej_is_infinity(&actual));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void test_secp256k1_pippenger_bucket_window_inv(void) {
|
||||
int i;
|
||||
|
||||
CHECK(secp256k1_pippenger_bucket_window_inv(0) == 0);
|
||||
for(i = 1; i <= PIPPENGER_MAX_BUCKET_WINDOW; i++) {
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
/* Bucket_window of 8 is not used with endo */
|
||||
if (i == 8) {
|
||||
continue;
|
||||
}
|
||||
#endif
|
||||
CHECK(secp256k1_pippenger_bucket_window(secp256k1_pippenger_bucket_window_inv(i)) == i);
|
||||
if (i != PIPPENGER_MAX_BUCKET_WINDOW) {
|
||||
CHECK(secp256k1_pippenger_bucket_window(secp256k1_pippenger_bucket_window_inv(i)+1) > i);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Probabilistically test the function returning the maximum number of possible points
|
||||
* for a given scratch space.
|
||||
*/
|
||||
void test_ecmult_multi_pippenger_max_points(void) {
|
||||
size_t scratch_size = secp256k1_rand_int(256);
|
||||
size_t max_size = secp256k1_pippenger_scratch_size(secp256k1_pippenger_bucket_window_inv(PIPPENGER_MAX_BUCKET_WINDOW-1)+512, 12);
|
||||
secp256k1_scratch *scratch;
|
||||
size_t n_points_supported;
|
||||
int bucket_window = 0;
|
||||
|
||||
for(; scratch_size < max_size; scratch_size+=256) {
|
||||
scratch = secp256k1_scratch_create(&ctx->error_callback, scratch_size);
|
||||
CHECK(scratch != NULL);
|
||||
n_points_supported = secp256k1_pippenger_max_points(scratch);
|
||||
if (n_points_supported == 0) {
|
||||
secp256k1_scratch_destroy(scratch);
|
||||
continue;
|
||||
}
|
||||
bucket_window = secp256k1_pippenger_bucket_window(n_points_supported);
|
||||
CHECK(secp256k1_scratch_allocate_frame(scratch, secp256k1_pippenger_scratch_size(n_points_supported, bucket_window), PIPPENGER_SCRATCH_OBJECTS));
|
||||
secp256k1_scratch_deallocate_frame(scratch);
|
||||
secp256k1_scratch_destroy(scratch);
|
||||
}
|
||||
CHECK(bucket_window == PIPPENGER_MAX_BUCKET_WINDOW);
|
||||
}
|
||||
|
||||
void test_ecmult_multi_batch_size_helper(void) {
|
||||
size_t n_batches, n_batch_points, max_n_batch_points, n;
|
||||
|
||||
max_n_batch_points = 0;
|
||||
n = 1;
|
||||
CHECK(secp256k1_ecmult_multi_batch_size_helper(&n_batches, &n_batch_points, max_n_batch_points, n) == 0);
|
||||
|
||||
max_n_batch_points = 1;
|
||||
n = 0;
|
||||
CHECK(secp256k1_ecmult_multi_batch_size_helper(&n_batches, &n_batch_points, max_n_batch_points, n) == 1);
|
||||
CHECK(n_batches == 0);
|
||||
CHECK(n_batch_points == 0);
|
||||
|
||||
max_n_batch_points = 2;
|
||||
n = 5;
|
||||
CHECK(secp256k1_ecmult_multi_batch_size_helper(&n_batches, &n_batch_points, max_n_batch_points, n) == 1);
|
||||
CHECK(n_batches == 3);
|
||||
CHECK(n_batch_points == 2);
|
||||
|
||||
max_n_batch_points = ECMULT_MAX_POINTS_PER_BATCH;
|
||||
n = ECMULT_MAX_POINTS_PER_BATCH;
|
||||
CHECK(secp256k1_ecmult_multi_batch_size_helper(&n_batches, &n_batch_points, max_n_batch_points, n) == 1);
|
||||
CHECK(n_batches == 1);
|
||||
CHECK(n_batch_points == ECMULT_MAX_POINTS_PER_BATCH);
|
||||
|
||||
max_n_batch_points = ECMULT_MAX_POINTS_PER_BATCH + 1;
|
||||
n = ECMULT_MAX_POINTS_PER_BATCH + 1;
|
||||
CHECK(secp256k1_ecmult_multi_batch_size_helper(&n_batches, &n_batch_points, max_n_batch_points, n) == 1);
|
||||
CHECK(n_batches == 2);
|
||||
CHECK(n_batch_points == ECMULT_MAX_POINTS_PER_BATCH/2 + 1);
|
||||
|
||||
max_n_batch_points = 1;
|
||||
n = SIZE_MAX;
|
||||
CHECK(secp256k1_ecmult_multi_batch_size_helper(&n_batches, &n_batch_points, max_n_batch_points, n) == 1);
|
||||
CHECK(n_batches == SIZE_MAX);
|
||||
CHECK(n_batch_points == 1);
|
||||
|
||||
max_n_batch_points = 2;
|
||||
n = SIZE_MAX;
|
||||
CHECK(secp256k1_ecmult_multi_batch_size_helper(&n_batches, &n_batch_points, max_n_batch_points, n) == 1);
|
||||
CHECK(n_batches == SIZE_MAX/2 + 1);
|
||||
CHECK(n_batch_points == 2);
|
||||
}
|
||||
|
||||
/**
|
||||
* Run secp256k1_ecmult_multi_var with num points and a scratch space restricted to
|
||||
* 1 <= i <= num points.
|
||||
*/
|
||||
void test_ecmult_multi_batching(void) {
|
||||
static const int n_points = 2*ECMULT_PIPPENGER_THRESHOLD;
|
||||
secp256k1_scalar scG;
|
||||
secp256k1_scalar szero;
|
||||
secp256k1_scalar *sc = (secp256k1_scalar *)checked_malloc(&ctx->error_callback, sizeof(secp256k1_scalar) * n_points);
|
||||
secp256k1_ge *pt = (secp256k1_ge *)checked_malloc(&ctx->error_callback, sizeof(secp256k1_ge) * n_points);
|
||||
secp256k1_gej r;
|
||||
secp256k1_gej r2;
|
||||
ecmult_multi_data data;
|
||||
int i;
|
||||
secp256k1_scratch *scratch;
|
||||
|
||||
secp256k1_gej_set_infinity(&r2);
|
||||
secp256k1_scalar_set_int(&szero, 0);
|
||||
|
||||
/* Get random scalars and group elements and compute result */
|
||||
random_scalar_order(&scG);
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &r2, &r2, &szero, &scG);
|
||||
for(i = 0; i < n_points; i++) {
|
||||
secp256k1_ge ptg;
|
||||
secp256k1_gej ptgj;
|
||||
random_group_element_test(&ptg);
|
||||
secp256k1_gej_set_ge(&ptgj, &ptg);
|
||||
pt[i] = ptg;
|
||||
random_scalar_order(&sc[i]);
|
||||
secp256k1_ecmult(&ctx->ecmult_ctx, &ptgj, &ptgj, &sc[i], NULL);
|
||||
secp256k1_gej_add_var(&r2, &r2, &ptgj, NULL);
|
||||
}
|
||||
data.sc = sc;
|
||||
data.pt = pt;
|
||||
|
||||
/* Test with empty scratch space */
|
||||
scratch = secp256k1_scratch_create(&ctx->error_callback, 0);
|
||||
CHECK(!secp256k1_ecmult_multi_var(&ctx->ecmult_ctx, scratch, &r, &scG, ecmult_multi_callback, &data, 1));
|
||||
secp256k1_scratch_destroy(scratch);
|
||||
|
||||
/* Test with space for 1 point in pippenger. That's not enough because
|
||||
* ecmult_multi selects strauss which requires more memory. */
|
||||
scratch = secp256k1_scratch_create(&ctx->error_callback, secp256k1_pippenger_scratch_size(1, 1) + PIPPENGER_SCRATCH_OBJECTS*ALIGNMENT);
|
||||
CHECK(!secp256k1_ecmult_multi_var(&ctx->ecmult_ctx, scratch, &r, &scG, ecmult_multi_callback, &data, 1));
|
||||
secp256k1_scratch_destroy(scratch);
|
||||
|
||||
secp256k1_gej_neg(&r2, &r2);
|
||||
for(i = 1; i <= n_points; i++) {
|
||||
if (i > ECMULT_PIPPENGER_THRESHOLD) {
|
||||
int bucket_window = secp256k1_pippenger_bucket_window(i);
|
||||
size_t scratch_size = secp256k1_pippenger_scratch_size(i, bucket_window);
|
||||
scratch = secp256k1_scratch_create(&ctx->error_callback, scratch_size + PIPPENGER_SCRATCH_OBJECTS*ALIGNMENT);
|
||||
} else {
|
||||
size_t scratch_size = secp256k1_strauss_scratch_size(i);
|
||||
scratch = secp256k1_scratch_create(&ctx->error_callback, scratch_size + STRAUSS_SCRATCH_OBJECTS*ALIGNMENT);
|
||||
}
|
||||
CHECK(secp256k1_ecmult_multi_var(&ctx->ecmult_ctx, scratch, &r, &scG, ecmult_multi_callback, &data, n_points));
|
||||
secp256k1_gej_add_var(&r, &r, &r2, NULL);
|
||||
CHECK(secp256k1_gej_is_infinity(&r));
|
||||
secp256k1_scratch_destroy(scratch);
|
||||
}
|
||||
free(sc);
|
||||
free(pt);
|
||||
}
|
||||
|
||||
void run_ecmult_multi_tests(void) {
|
||||
secp256k1_scratch *scratch;
|
||||
|
||||
test_secp256k1_pippenger_bucket_window_inv();
|
||||
test_ecmult_multi_pippenger_max_points();
|
||||
scratch = secp256k1_scratch_create(&ctx->error_callback, 819200);
|
||||
test_ecmult_multi(scratch, secp256k1_ecmult_multi_var);
|
||||
test_ecmult_multi(NULL, secp256k1_ecmult_multi_var);
|
||||
test_ecmult_multi(scratch, secp256k1_ecmult_pippenger_batch_single);
|
||||
test_ecmult_multi(scratch, secp256k1_ecmult_strauss_batch_single);
|
||||
secp256k1_scratch_destroy(scratch);
|
||||
|
||||
/* Run test_ecmult_multi with space for exactly one point */
|
||||
scratch = secp256k1_scratch_create(&ctx->error_callback, secp256k1_strauss_scratch_size(1) + STRAUSS_SCRATCH_OBJECTS*ALIGNMENT);
|
||||
test_ecmult_multi(scratch, secp256k1_ecmult_multi_var);
|
||||
secp256k1_scratch_destroy(scratch);
|
||||
|
||||
test_ecmult_multi_batch_size_helper();
|
||||
test_ecmult_multi_batching();
|
||||
}
|
||||
|
||||
void test_wnaf(const secp256k1_scalar *number, int w) {
|
||||
secp256k1_scalar x, two, t;
|
||||
int wnaf[256];
|
||||
|
|
@ -2541,6 +3038,7 @@ void test_constant_wnaf(const secp256k1_scalar *number, int w) {
|
|||
int wnaf[256] = {0};
|
||||
int i;
|
||||
int skew;
|
||||
int bits = 256;
|
||||
secp256k1_scalar num = *number;
|
||||
|
||||
secp256k1_scalar_set_int(&x, 0);
|
||||
|
|
@ -2550,10 +3048,11 @@ void test_constant_wnaf(const secp256k1_scalar *number, int w) {
|
|||
for (i = 0; i < 16; ++i) {
|
||||
secp256k1_scalar_shr_int(&num, 8);
|
||||
}
|
||||
bits = 128;
|
||||
#endif
|
||||
skew = secp256k1_wnaf_const(wnaf, num, w);
|
||||
skew = secp256k1_wnaf_const(wnaf, num, w, bits);
|
||||
|
||||
for (i = WNAF_SIZE(w); i >= 0; --i) {
|
||||
for (i = WNAF_SIZE_BITS(bits, w); i >= 0; --i) {
|
||||
secp256k1_scalar t;
|
||||
int v = wnaf[i];
|
||||
CHECK(v != 0); /* check nonzero */
|
||||
|
|
@ -2575,6 +3074,110 @@ void test_constant_wnaf(const secp256k1_scalar *number, int w) {
|
|||
CHECK(secp256k1_scalar_eq(&x, &num));
|
||||
}
|
||||
|
||||
void test_fixed_wnaf(const secp256k1_scalar *number, int w) {
|
||||
secp256k1_scalar x, shift;
|
||||
int wnaf[256] = {0};
|
||||
int i;
|
||||
int skew;
|
||||
secp256k1_scalar num = *number;
|
||||
|
||||
secp256k1_scalar_set_int(&x, 0);
|
||||
secp256k1_scalar_set_int(&shift, 1 << w);
|
||||
/* With USE_ENDOMORPHISM on we only consider 128-bit numbers */
|
||||
#ifdef USE_ENDOMORPHISM
|
||||
for (i = 0; i < 16; ++i) {
|
||||
secp256k1_scalar_shr_int(&num, 8);
|
||||
}
|
||||
#endif
|
||||
skew = secp256k1_wnaf_fixed(wnaf, &num, w);
|
||||
|
||||
for (i = WNAF_SIZE(w)-1; i >= 0; --i) {
|
||||
secp256k1_scalar t;
|
||||
int v = wnaf[i];
|
||||
CHECK(v == 0 || v & 1); /* check parity */
|
||||
CHECK(v > -(1 << w)); /* check range above */
|
||||
CHECK(v < (1 << w)); /* check range below */
|
||||
|
||||
secp256k1_scalar_mul(&x, &x, &shift);
|
||||
if (v >= 0) {
|
||||
secp256k1_scalar_set_int(&t, v);
|
||||
} else {
|
||||
secp256k1_scalar_set_int(&t, -v);
|
||||
secp256k1_scalar_negate(&t, &t);
|
||||
}
|
||||
secp256k1_scalar_add(&x, &x, &t);
|
||||
}
|
||||
/* If skew is 1 then add 1 to num */
|
||||
secp256k1_scalar_cadd_bit(&num, 0, skew == 1);
|
||||
CHECK(secp256k1_scalar_eq(&x, &num));
|
||||
}
|
||||
|
||||
/* Checks that the first 8 elements of wnaf are equal to wnaf_expected and the
|
||||
* rest is 0.*/
|
||||
void test_fixed_wnaf_small_helper(int *wnaf, int *wnaf_expected, int w) {
|
||||
int i;
|
||||
for (i = WNAF_SIZE(w)-1; i >= 8; --i) {
|
||||
CHECK(wnaf[i] == 0);
|
||||
}
|
||||
for (i = 7; i >= 0; --i) {
|
||||
CHECK(wnaf[i] == wnaf_expected[i]);
|
||||
}
|
||||
}
|
||||
|
||||
void test_fixed_wnaf_small(void) {
|
||||
int w = 4;
|
||||
int wnaf[256] = {0};
|
||||
int i;
|
||||
int skew;
|
||||
secp256k1_scalar num;
|
||||
|
||||
secp256k1_scalar_set_int(&num, 0);
|
||||
skew = secp256k1_wnaf_fixed(wnaf, &num, w);
|
||||
for (i = WNAF_SIZE(w)-1; i >= 0; --i) {
|
||||
int v = wnaf[i];
|
||||
CHECK(v == 0);
|
||||
}
|
||||
CHECK(skew == 0);
|
||||
|
||||
secp256k1_scalar_set_int(&num, 1);
|
||||
skew = secp256k1_wnaf_fixed(wnaf, &num, w);
|
||||
for (i = WNAF_SIZE(w)-1; i >= 1; --i) {
|
||||
int v = wnaf[i];
|
||||
CHECK(v == 0);
|
||||
}
|
||||
CHECK(wnaf[0] == 1);
|
||||
CHECK(skew == 0);
|
||||
|
||||
{
|
||||
int wnaf_expected[8] = { 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf };
|
||||
secp256k1_scalar_set_int(&num, 0xffffffff);
|
||||
skew = secp256k1_wnaf_fixed(wnaf, &num, w);
|
||||
test_fixed_wnaf_small_helper(wnaf, wnaf_expected, w);
|
||||
CHECK(skew == 0);
|
||||
}
|
||||
{
|
||||
int wnaf_expected[8] = { -1, -1, -1, -1, -1, -1, -1, 0xf };
|
||||
secp256k1_scalar_set_int(&num, 0xeeeeeeee);
|
||||
skew = secp256k1_wnaf_fixed(wnaf, &num, w);
|
||||
test_fixed_wnaf_small_helper(wnaf, wnaf_expected, w);
|
||||
CHECK(skew == 1);
|
||||
}
|
||||
{
|
||||
int wnaf_expected[8] = { 1, 0, 1, 0, 1, 0, 1, 0 };
|
||||
secp256k1_scalar_set_int(&num, 0x01010101);
|
||||
skew = secp256k1_wnaf_fixed(wnaf, &num, w);
|
||||
test_fixed_wnaf_small_helper(wnaf, wnaf_expected, w);
|
||||
CHECK(skew == 0);
|
||||
}
|
||||
{
|
||||
int wnaf_expected[8] = { -0xf, 0, 0xf, -0xf, 0, 0xf, 1, 0 };
|
||||
secp256k1_scalar_set_int(&num, 0x01ef1ef1);
|
||||
skew = secp256k1_wnaf_fixed(wnaf, &num, w);
|
||||
test_fixed_wnaf_small_helper(wnaf, wnaf_expected, w);
|
||||
CHECK(skew == 0);
|
||||
}
|
||||
}
|
||||
|
||||
void run_wnaf(void) {
|
||||
int i;
|
||||
secp256k1_scalar n = {{0}};
|
||||
|
|
@ -2585,12 +3188,15 @@ void run_wnaf(void) {
|
|||
test_constant_wnaf(&n, 4);
|
||||
n.d[0] = 2;
|
||||
test_constant_wnaf(&n, 4);
|
||||
/* Test 0 */
|
||||
test_fixed_wnaf_small();
|
||||
/* Random tests */
|
||||
for (i = 0; i < count; i++) {
|
||||
random_scalar_order(&n);
|
||||
test_wnaf(&n, 4+(i%10));
|
||||
test_constant_wnaf_negate(&n);
|
||||
test_constant_wnaf(&n, 4 + (i % 10));
|
||||
test_fixed_wnaf(&n, 4 + (i % 10));
|
||||
}
|
||||
secp256k1_scalar_set_int(&n, 0);
|
||||
CHECK(secp256k1_scalar_cond_negate(&n, 1) == -1);
|
||||
|
|
@ -3055,6 +3661,7 @@ void run_ec_pubkey_parse_test(void) {
|
|||
ecount = 0;
|
||||
VG_UNDEF(&pubkey, sizeof(pubkey));
|
||||
CHECK(secp256k1_ec_pubkey_parse(ctx, &pubkey, pubkeyc, 65) == 1);
|
||||
CHECK(secp256k1_ec_pubkey_parse(secp256k1_context_no_precomp, &pubkey, pubkeyc, 65) == 1);
|
||||
VG_CHECK(&pubkey, sizeof(pubkey));
|
||||
CHECK(ecount == 0);
|
||||
VG_UNDEF(&ge, sizeof(ge));
|
||||
|
|
@ -3177,7 +3784,7 @@ void run_eckey_edge_case_test(void) {
|
|||
VG_CHECK(&pubkey, sizeof(pubkey));
|
||||
CHECK(memcmp(&pubkey, zeros, sizeof(secp256k1_pubkey)) > 0);
|
||||
pubkey_negone = pubkey;
|
||||
/* Tweak of zero leaves the value changed. */
|
||||
/* Tweak of zero leaves the value unchanged. */
|
||||
memset(ctmp2, 0, 32);
|
||||
CHECK(secp256k1_ec_privkey_tweak_add(ctx, ctmp, ctmp2) == 1);
|
||||
CHECK(memcmp(orderc, ctmp, 31) == 0 && ctmp[31] == 0x40);
|
||||
|
|
@ -3668,6 +4275,7 @@ int test_ecdsa_der_parse(const unsigned char *sig, size_t siglen, int certainly_
|
|||
|
||||
#ifdef ENABLE_OPENSSL_TESTS
|
||||
ECDSA_SIG *sig_openssl;
|
||||
const BIGNUM *r = NULL, *s = NULL;
|
||||
const unsigned char *sigptr;
|
||||
unsigned char roundtrip_openssl[2048];
|
||||
int len_openssl = 2048;
|
||||
|
|
@ -3719,15 +4327,16 @@ int test_ecdsa_der_parse(const unsigned char *sig, size_t siglen, int certainly_
|
|||
sigptr = sig;
|
||||
parsed_openssl = (d2i_ECDSA_SIG(&sig_openssl, &sigptr, siglen) != NULL);
|
||||
if (parsed_openssl) {
|
||||
valid_openssl = !BN_is_negative(sig_openssl->r) && !BN_is_negative(sig_openssl->s) && BN_num_bits(sig_openssl->r) > 0 && BN_num_bits(sig_openssl->r) <= 256 && BN_num_bits(sig_openssl->s) > 0 && BN_num_bits(sig_openssl->s) <= 256;
|
||||
ECDSA_SIG_get0(sig_openssl, &r, &s);
|
||||
valid_openssl = !BN_is_negative(r) && !BN_is_negative(s) && BN_num_bits(r) > 0 && BN_num_bits(r) <= 256 && BN_num_bits(s) > 0 && BN_num_bits(s) <= 256;
|
||||
if (valid_openssl) {
|
||||
unsigned char tmp[32] = {0};
|
||||
BN_bn2bin(sig_openssl->r, tmp + 32 - BN_num_bytes(sig_openssl->r));
|
||||
BN_bn2bin(r, tmp + 32 - BN_num_bytes(r));
|
||||
valid_openssl = memcmp(tmp, max_scalar, 32) < 0;
|
||||
}
|
||||
if (valid_openssl) {
|
||||
unsigned char tmp[32] = {0};
|
||||
BN_bn2bin(sig_openssl->s, tmp + 32 - BN_num_bytes(sig_openssl->s));
|
||||
BN_bn2bin(s, tmp + 32 - BN_num_bytes(s));
|
||||
valid_openssl = memcmp(tmp, max_scalar, 32) < 0;
|
||||
}
|
||||
}
|
||||
|
|
@ -4431,8 +5040,9 @@ int main(int argc, char **argv) {
|
|||
}
|
||||
} else {
|
||||
FILE *frand = fopen("/dev/urandom", "r");
|
||||
if ((frand == NULL) || !fread(&seed16, sizeof(seed16), 1, frand)) {
|
||||
if ((frand == NULL) || fread(&seed16, 1, sizeof(seed16), frand) != sizeof(seed16)) {
|
||||
uint64_t t = time(NULL) * (uint64_t)1337;
|
||||
fprintf(stderr, "WARNING: could not read 16 bytes from /dev/urandom; falling back to insecure PRNG\n");
|
||||
seed16[0] ^= t;
|
||||
seed16[1] ^= t >> 8;
|
||||
seed16[2] ^= t >> 16;
|
||||
|
|
@ -4442,7 +5052,9 @@ int main(int argc, char **argv) {
|
|||
seed16[6] ^= t >> 48;
|
||||
seed16[7] ^= t >> 56;
|
||||
}
|
||||
fclose(frand);
|
||||
if (frand) {
|
||||
fclose(frand);
|
||||
}
|
||||
}
|
||||
secp256k1_rand_seed(seed16);
|
||||
|
||||
|
|
@ -4451,6 +5063,7 @@ int main(int argc, char **argv) {
|
|||
|
||||
/* initialize */
|
||||
run_context_tests();
|
||||
run_scratch_tests();
|
||||
ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY);
|
||||
if (secp256k1_rand_bits(1)) {
|
||||
secp256k1_rand256(run32);
|
||||
|
|
@ -4492,6 +5105,7 @@ int main(int argc, char **argv) {
|
|||
run_ecmult_constants();
|
||||
run_ecmult_gen_blind();
|
||||
run_ecmult_const_tests();
|
||||
run_ecmult_multi_tests();
|
||||
run_ec_combine();
|
||||
|
||||
/* endomorphism tests */
|
||||
|
|
|
|||
|
|
@ -174,7 +174,7 @@ void test_exhaustive_ecmult(const secp256k1_context *ctx, const secp256k1_ge *gr
|
|||
ge_equals_gej(&group[(i * r_log + j) % order], &tmp);
|
||||
|
||||
if (i > 0) {
|
||||
secp256k1_ecmult_const(&tmp, &group[i], &ng);
|
||||
secp256k1_ecmult_const(&tmp, &group[i], &ng, 256);
|
||||
ge_equals_gej(&group[(i * j) % order], &tmp);
|
||||
}
|
||||
}
|
||||
|
|
@ -182,6 +182,46 @@ void test_exhaustive_ecmult(const secp256k1_context *ctx, const secp256k1_ge *gr
|
|||
}
|
||||
}
|
||||
|
||||
typedef struct {
|
||||
secp256k1_scalar sc[2];
|
||||
secp256k1_ge pt[2];
|
||||
} ecmult_multi_data;
|
||||
|
||||
static int ecmult_multi_callback(secp256k1_scalar *sc, secp256k1_ge *pt, size_t idx, void *cbdata) {
|
||||
ecmult_multi_data *data = (ecmult_multi_data*) cbdata;
|
||||
*sc = data->sc[idx];
|
||||
*pt = data->pt[idx];
|
||||
return 1;
|
||||
}
|
||||
|
||||
void test_exhaustive_ecmult_multi(const secp256k1_context *ctx, const secp256k1_ge *group, int order) {
|
||||
int i, j, k, x, y;
|
||||
secp256k1_scratch *scratch = secp256k1_scratch_create(&ctx->error_callback, 4096);
|
||||
for (i = 0; i < order; i++) {
|
||||
for (j = 0; j < order; j++) {
|
||||
for (k = 0; k < order; k++) {
|
||||
for (x = 0; x < order; x++) {
|
||||
for (y = 0; y < order; y++) {
|
||||
secp256k1_gej tmp;
|
||||
secp256k1_scalar g_sc;
|
||||
ecmult_multi_data data;
|
||||
|
||||
secp256k1_scalar_set_int(&data.sc[0], i);
|
||||
secp256k1_scalar_set_int(&data.sc[1], j);
|
||||
secp256k1_scalar_set_int(&g_sc, k);
|
||||
data.pt[0] = group[x];
|
||||
data.pt[1] = group[y];
|
||||
|
||||
secp256k1_ecmult_multi_var(&ctx->ecmult_ctx, scratch, &tmp, &g_sc, ecmult_multi_callback, &data, 2);
|
||||
ge_equals_gej(&group[(i * x + j * y + k) % order], &tmp);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
secp256k1_scratch_destroy(scratch);
|
||||
}
|
||||
|
||||
void r_from_k(secp256k1_scalar *r, const secp256k1_ge *group, int k) {
|
||||
secp256k1_fe x;
|
||||
unsigned char x_bin[32];
|
||||
|
|
@ -456,6 +496,7 @@ int main(void) {
|
|||
#endif
|
||||
test_exhaustive_addition(group, groupj, EXHAUSTIVE_TEST_ORDER);
|
||||
test_exhaustive_ecmult(ctx, group, groupj, EXHAUSTIVE_TEST_ORDER);
|
||||
test_exhaustive_ecmult_multi(ctx, group, EXHAUSTIVE_TEST_ORDER);
|
||||
test_exhaustive_sign(ctx, group, EXHAUSTIVE_TEST_ORDER);
|
||||
test_exhaustive_verify(ctx, group, EXHAUSTIVE_TEST_ORDER);
|
||||
|
||||
|
|
|
|||
|
|
@ -36,7 +36,7 @@ static SECP256K1_INLINE void secp256k1_callback_call(const secp256k1_callback *
|
|||
} while(0)
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_BUILTIN_EXPECT
|
||||
#if SECP256K1_GNUC_PREREQ(3, 0)
|
||||
#define EXPECT(x,c) __builtin_expect((x),(c))
|
||||
#else
|
||||
#define EXPECT(x,c) (x)
|
||||
|
|
@ -76,6 +76,14 @@ static SECP256K1_INLINE void *checked_malloc(const secp256k1_callback* cb, size_
|
|||
return ret;
|
||||
}
|
||||
|
||||
static SECP256K1_INLINE void *checked_realloc(const secp256k1_callback* cb, void *ptr, size_t size) {
|
||||
void *ret = realloc(ptr, size);
|
||||
if (ret == NULL) {
|
||||
secp256k1_callback_call(cb, "Out of memory");
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Macro for restrict, when available and not in a VERIFY build. */
|
||||
#if defined(SECP256K1_BUILD) && defined(VERIFY)
|
||||
# define SECP256K1_RESTRICT
|
||||
|
|
|
|||
Loading…
Reference in a new issue