boost: moveonly: split CPubKey and friends to new files

This commit is contained in:
Cory Fields 2014-10-28 17:47:18 -04:00
parent 78c228c6e5
commit d2e74c55bd
17 changed files with 356 additions and 305 deletions

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@ -102,6 +102,7 @@ BITCOIN_CORE_H = \
noui.h \
pow.h \
protocol.h \
pubkey.h \
random.h \
rpcclient.h \
rpcprotocol.h \
@ -228,6 +229,7 @@ libbitcoin_common_a_SOURCES = \
keystore.cpp \
netbase.cpp \
protocol.cpp \
pubkey.cpp \
script/interpreter.cpp \
script/script.cpp \
script/sigcache.cpp \

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@ -7,7 +7,7 @@
#include "chainparams.h"
#include "clientversion.h"
#include "key.h"
#include "pubkey.h"
#include "net.h"
#include "timedata.h"
#include "ui_interface.h"

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@ -16,6 +16,7 @@
#include "chainparams.h"
#include "key.h"
#include "pubkey.h"
#include "script/script.h"
#include "script/standard.h"

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@ -5,6 +5,7 @@
#include "bloom.h"
#include "core/transaction.h"
#include "hash.h"
#include "script/script.h"
#include "script/standard.h"
#include "streams.h"

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@ -6,7 +6,7 @@
#include "compressor.h"
#include "hash.h"
#include "key.h"
#include "pubkey.h"
#include "script/standard.h"
bool CScriptCompressor::IsToKeyID(CKeyID &hash) const

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@ -6,6 +6,7 @@
#include "crypto/sha2.h"
#include "eccryptoverify.h"
#include "pubkey.h"
#include "random.h"
#ifdef USE_SECP256K1
@ -167,76 +168,6 @@ bool CKey::Load(CPrivKey &privkey, CPubKey &vchPubKey, bool fSkipCheck=false) {
return true;
}
bool CPubKey::Verify(const uint256 &hash, const std::vector<unsigned char>& vchSig) const {
if (!IsValid())
return false;
#ifdef USE_SECP256K1
if (secp256k1_ecdsa_verify((const unsigned char*)&hash, 32, &vchSig[0], vchSig.size(), begin(), size()) != 1)
return false;
#else
CECKey key;
if (!key.SetPubKey(begin(), size()))
return false;
if (!key.Verify(hash, vchSig))
return false;
#endif
return true;
}
bool CPubKey::RecoverCompact(const uint256 &hash, const std::vector<unsigned char>& vchSig) {
if (vchSig.size() != 65)
return false;
int recid = (vchSig[0] - 27) & 3;
bool fComp = ((vchSig[0] - 27) & 4) != 0;
#ifdef USE_SECP256K1
int pubkeylen = 65;
if (!secp256k1_ecdsa_recover_compact((const unsigned char*)&hash, 32, &vchSig[1], (unsigned char*)begin(), &pubkeylen, fComp, recid))
return false;
assert((int)size() == pubkeylen);
#else
CECKey key;
if (!key.Recover(hash, &vchSig[1], recid))
return false;
std::vector<unsigned char> pubkey;
key.GetPubKey(pubkey, fComp);
Set(pubkey.begin(), pubkey.end());
#endif
return true;
}
bool CPubKey::IsFullyValid() const {
if (!IsValid())
return false;
#ifdef USE_SECP256K1
if (!secp256k1_ecdsa_pubkey_verify(begin(), size()))
return false;
#else
CECKey key;
if (!key.SetPubKey(begin(), size()))
return false;
#endif
return true;
}
bool CPubKey::Decompress() {
if (!IsValid())
return false;
#ifdef USE_SECP256K1
int clen = size();
int ret = secp256k1_ecdsa_pubkey_decompress((unsigned char*)begin(), &clen);
assert(ret);
assert(clen == (int)size());
#else
CECKey key;
if (!key.SetPubKey(begin(), size()))
return false;
std::vector<unsigned char> pubkey;
key.GetPubKey(pubkey, false);
Set(pubkey.begin(), pubkey.end());
#endif
return true;
}
bool CKey::Derive(CKey& keyChild, unsigned char ccChild[32], unsigned int nChild, const unsigned char cc[32]) const {
assert(IsValid());
assert(IsCompressed());
@ -263,27 +194,6 @@ bool CKey::Derive(CKey& keyChild, unsigned char ccChild[32], unsigned int nChild
return ret;
}
bool CPubKey::Derive(CPubKey& pubkeyChild, unsigned char ccChild[32], unsigned int nChild, const unsigned char cc[32]) const {
assert(IsValid());
assert((nChild >> 31) == 0);
assert(begin() + 33 == end());
unsigned char out[64];
BIP32Hash(cc, nChild, *begin(), begin()+1, out);
memcpy(ccChild, out+32, 32);
#ifdef USE_SECP256K1
pubkeyChild = *this;
bool ret = secp256k1_ecdsa_pubkey_tweak_add((unsigned char*)pubkeyChild.begin(), pubkeyChild.size(), out);
#else
CECKey key;
bool ret = key.SetPubKey(begin(), size());
ret &= key.TweakPublic(out);
std::vector<unsigned char> pubkey;
key.GetPubKey(pubkey, true);
pubkeyChild.Set(pubkey.begin(), pubkey.end());
#endif
return ret;
}
bool CExtKey::Derive(CExtKey &out, unsigned int nChild) const {
out.nDepth = nDepth + 1;
CKeyID id = key.GetPubKey().GetID();
@ -334,32 +244,6 @@ void CExtKey::Decode(const unsigned char code[74]) {
key.Set(code+42, code+74, true);
}
void CExtPubKey::Encode(unsigned char code[74]) const {
code[0] = nDepth;
memcpy(code+1, vchFingerprint, 4);
code[5] = (nChild >> 24) & 0xFF; code[6] = (nChild >> 16) & 0xFF;
code[7] = (nChild >> 8) & 0xFF; code[8] = (nChild >> 0) & 0xFF;
memcpy(code+9, vchChainCode, 32);
assert(pubkey.size() == 33);
memcpy(code+41, pubkey.begin(), 33);
}
void CExtPubKey::Decode(const unsigned char code[74]) {
nDepth = code[0];
memcpy(vchFingerprint, code+1, 4);
nChild = (code[5] << 24) | (code[6] << 16) | (code[7] << 8) | code[8];
memcpy(vchChainCode, code+9, 32);
pubkey.Set(code+41, code+74);
}
bool CExtPubKey::Derive(CExtPubKey &out, unsigned int nChild) const {
out.nDepth = nDepth + 1;
CKeyID id = pubkey.GetID();
memcpy(&out.vchFingerprint[0], &id, 4);
out.nChild = nChild;
return pubkey.Derive(out.pubkey, out.vchChainCode, nChild, vchChainCode);
}
bool ECC_InitSanityCheck() {
#ifdef USE_SECP256K1
return true;

185
src/key.h
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@ -7,13 +7,15 @@
#define BITCOIN_KEY_H
#include "allocators.h"
#include "hash.h"
#include "serialize.h"
#include "uint256.h"
#include <stdexcept>
#include <vector>
class CPubKey;
class CExtPubKey;
/**
* secp256k1:
* const unsigned int PRIVATE_KEY_SIZE = 279;
@ -24,169 +26,6 @@
* script supports up to 75 for single byte push
*/
/** A reference to a CKey: the Hash160 of its serialized public key */
class CKeyID : public uint160
{
public:
CKeyID() : uint160(0) {}
CKeyID(const uint160& in) : uint160(in) {}
};
/** An encapsulated public key. */
class CPubKey
{
private:
/**
* Just store the serialized data.
* Its length can very cheaply be computed from the first byte.
*/
unsigned char vch[65];
//! Compute the length of a pubkey with a given first byte.
unsigned int static GetLen(unsigned char chHeader)
{
if (chHeader == 2 || chHeader == 3)
return 33;
if (chHeader == 4 || chHeader == 6 || chHeader == 7)
return 65;
return 0;
}
//! Set this key data to be invalid
void Invalidate()
{
vch[0] = 0xFF;
}
public:
//! Construct an invalid public key.
CPubKey()
{
Invalidate();
}
//! Initialize a public key using begin/end iterators to byte data.
template <typename T>
void Set(const T pbegin, const T pend)
{
int len = pend == pbegin ? 0 : GetLen(pbegin[0]);
if (len && len == (pend - pbegin))
memcpy(vch, (unsigned char*)&pbegin[0], len);
else
Invalidate();
}
//! Construct a public key using begin/end iterators to byte data.
template <typename T>
CPubKey(const T pbegin, const T pend)
{
Set(pbegin, pend);
}
//! Construct a public key from a byte vector.
CPubKey(const std::vector<unsigned char>& vch)
{
Set(vch.begin(), vch.end());
}
//! Simple read-only vector-like interface to the pubkey data.
unsigned int size() const { return GetLen(vch[0]); }
const unsigned char* begin() const { return vch; }
const unsigned char* end() const { return vch + size(); }
const unsigned char& operator[](unsigned int pos) const { return vch[pos]; }
//! Comparator implementation.
friend bool operator==(const CPubKey& a, const CPubKey& b)
{
return a.vch[0] == b.vch[0] &&
memcmp(a.vch, b.vch, a.size()) == 0;
}
friend bool operator!=(const CPubKey& a, const CPubKey& b)
{
return !(a == b);
}
friend bool operator<(const CPubKey& a, const CPubKey& b)
{
return a.vch[0] < b.vch[0] ||
(a.vch[0] == b.vch[0] && memcmp(a.vch, b.vch, a.size()) < 0);
}
//! Implement serialization, as if this was a byte vector.
unsigned int GetSerializeSize(int nType, int nVersion) const
{
return size() + 1;
}
template <typename Stream>
void Serialize(Stream& s, int nType, int nVersion) const
{
unsigned int len = size();
::WriteCompactSize(s, len);
s.write((char*)vch, len);
}
template <typename Stream>
void Unserialize(Stream& s, int nType, int nVersion)
{
unsigned int len = ::ReadCompactSize(s);
if (len <= 65) {
s.read((char*)vch, len);
} else {
// invalid pubkey, skip available data
char dummy;
while (len--)
s.read(&dummy, 1);
Invalidate();
}
}
//! Get the KeyID of this public key (hash of its serialization)
CKeyID GetID() const
{
return CKeyID(Hash160(vch, vch + size()));
}
//! Get the 256-bit hash of this public key.
uint256 GetHash() const
{
return Hash(vch, vch + size());
}
/*
* Check syntactic correctness.
*
* Note that this is consensus critical as CheckSig() calls it!
*/
bool IsValid() const
{
return size() > 0;
}
//! fully validate whether this is a valid public key (more expensive than IsValid())
bool IsFullyValid() const;
//! Check whether this is a compressed public key.
bool IsCompressed() const
{
return size() == 33;
}
/**
* Verify a DER signature (~72 bytes).
* If this public key is not fully valid, the return value will be false.
*/
bool Verify(const uint256& hash, const std::vector<unsigned char>& vchSig) const;
//! Recover a public key from a compact signature.
bool RecoverCompact(const uint256& hash, const std::vector<unsigned char>& vchSig);
//! Turn this public key into an uncompressed public key.
bool Decompress();
//! Derive BIP32 child pubkey.
bool Derive(CPubKey& pubkeyChild, unsigned char ccChild[32], unsigned int nChild, const unsigned char cc[32]) const;
};
/**
* secure_allocator is defined in allocators.h
* CPrivKey is a serialized private key, with all parameters included (279 bytes)
@ -304,24 +143,6 @@ public:
static bool CheckSignatureElement(const unsigned char* vch, int len, bool half);
};
struct CExtPubKey {
unsigned char nDepth;
unsigned char vchFingerprint[4];
unsigned int nChild;
unsigned char vchChainCode[32];
CPubKey pubkey;
friend bool operator==(const CExtPubKey& a, const CExtPubKey& b)
{
return a.nDepth == b.nDepth && memcmp(&a.vchFingerprint[0], &b.vchFingerprint[0], 4) == 0 && a.nChild == b.nChild &&
memcmp(&a.vchChainCode[0], &b.vchChainCode[0], 32) == 0 && a.pubkey == b.pubkey;
}
void Encode(unsigned char code[74]) const;
void Decode(const unsigned char code[74]);
bool Derive(CExtPubKey& out, unsigned int nChild) const;
};
struct CExtKey {
unsigned char nDepth;
unsigned char vchFingerprint[4];

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@ -7,6 +7,7 @@
#define BITCOIN_KEYSTORE_H
#include "key.h"
#include "pubkey.h"
#include "sync.h"
#include <boost/signals2/signal.hpp>

131
src/pubkey.cpp Normal file
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@ -0,0 +1,131 @@
// Copyright (c) 2009-2014 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "pubkey.h"
#include "crypto/sha2.h"
#include "eccryptoverify.h"
#ifdef USE_SECP256K1
#include <secp256k1.h>
#else
#include "ecwrapper.h"
#endif
bool CPubKey::Verify(const uint256 &hash, const std::vector<unsigned char>& vchSig) const {
if (!IsValid())
return false;
#ifdef USE_SECP256K1
if (secp256k1_ecdsa_verify((const unsigned char*)&hash, 32, &vchSig[0], vchSig.size(), begin(), size()) != 1)
return false;
#else
CECKey key;
if (!key.SetPubKey(begin(), size()))
return false;
if (!key.Verify(hash, vchSig))
return false;
#endif
return true;
}
bool CPubKey::RecoverCompact(const uint256 &hash, const std::vector<unsigned char>& vchSig) {
if (vchSig.size() != 65)
return false;
int recid = (vchSig[0] - 27) & 3;
bool fComp = ((vchSig[0] - 27) & 4) != 0;
#ifdef USE_SECP256K1
int pubkeylen = 65;
if (!secp256k1_ecdsa_recover_compact((const unsigned char*)&hash, 32, &vchSig[1], (unsigned char*)begin(), &pubkeylen, fComp, recid))
return false;
assert((int)size() == pubkeylen);
#else
CECKey key;
if (!key.Recover(hash, &vchSig[1], recid))
return false;
std::vector<unsigned char> pubkey;
key.GetPubKey(pubkey, fComp);
Set(pubkey.begin(), pubkey.end());
#endif
return true;
}
bool CPubKey::IsFullyValid() const {
if (!IsValid())
return false;
#ifdef USE_SECP256K1
if (!secp256k1_ecdsa_pubkey_verify(begin(), size()))
return false;
#else
CECKey key;
if (!key.SetPubKey(begin(), size()))
return false;
#endif
return true;
}
bool CPubKey::Decompress() {
if (!IsValid())
return false;
#ifdef USE_SECP256K1
int clen = size();
int ret = secp256k1_ecdsa_pubkey_decompress((unsigned char*)begin(), &clen);
assert(ret);
assert(clen == (int)size());
#else
CECKey key;
if (!key.SetPubKey(begin(), size()))
return false;
std::vector<unsigned char> pubkey;
key.GetPubKey(pubkey, false);
Set(pubkey.begin(), pubkey.end());
#endif
return true;
}
bool CPubKey::Derive(CPubKey& pubkeyChild, unsigned char ccChild[32], unsigned int nChild, const unsigned char cc[32]) const {
assert(IsValid());
assert((nChild >> 31) == 0);
assert(begin() + 33 == end());
unsigned char out[64];
BIP32Hash(cc, nChild, *begin(), begin()+1, out);
memcpy(ccChild, out+32, 32);
#ifdef USE_SECP256K1
pubkeyChild = *this;
bool ret = secp256k1_ecdsa_pubkey_tweak_add((unsigned char*)pubkeyChild.begin(), pubkeyChild.size(), out);
#else
CECKey key;
bool ret = key.SetPubKey(begin(), size());
ret &= key.TweakPublic(out);
std::vector<unsigned char> pubkey;
key.GetPubKey(pubkey, true);
pubkeyChild.Set(pubkey.begin(), pubkey.end());
#endif
return ret;
}
void CExtPubKey::Encode(unsigned char code[74]) const {
code[0] = nDepth;
memcpy(code+1, vchFingerprint, 4);
code[5] = (nChild >> 24) & 0xFF; code[6] = (nChild >> 16) & 0xFF;
code[7] = (nChild >> 8) & 0xFF; code[8] = (nChild >> 0) & 0xFF;
memcpy(code+9, vchChainCode, 32);
assert(pubkey.size() == 33);
memcpy(code+41, pubkey.begin(), 33);
}
void CExtPubKey::Decode(const unsigned char code[74]) {
nDepth = code[0];
memcpy(vchFingerprint, code+1, 4);
nChild = (code[5] << 24) | (code[6] << 16) | (code[7] << 8) | code[8];
memcpy(vchChainCode, code+9, 32);
pubkey.Set(code+41, code+74);
}
bool CExtPubKey::Derive(CExtPubKey &out, unsigned int nChild) const {
out.nDepth = nDepth + 1;
CKeyID id = pubkey.GetID();
memcpy(&out.vchFingerprint[0], &id, 4);
out.nChild = nChild;
return pubkey.Derive(out.pubkey, out.vchChainCode, nChild, vchChainCode);
}

206
src/pubkey.h Normal file
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@ -0,0 +1,206 @@
// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2013 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_PUBKEY_H
#define BITCOIN_PUBKEY_H
#include "hash.h"
#include "serialize.h"
#include "uint256.h"
#include <stdexcept>
#include <vector>
/**
* secp256k1:
* const unsigned int PRIVATE_KEY_SIZE = 279;
* const unsigned int PUBLIC_KEY_SIZE = 65;
* const unsigned int SIGNATURE_SIZE = 72;
*
* see www.keylength.com
* script supports up to 75 for single byte push
*/
/** A reference to a CKey: the Hash160 of its serialized public key */
class CKeyID : public uint160
{
public:
CKeyID() : uint160(0) {}
CKeyID(const uint160& in) : uint160(in) {}
};
/** An encapsulated public key. */
class CPubKey
{
private:
/**
* Just store the serialized data.
* Its length can very cheaply be computed from the first byte.
*/
unsigned char vch[65];
//! Compute the length of a pubkey with a given first byte.
unsigned int static GetLen(unsigned char chHeader)
{
if (chHeader == 2 || chHeader == 3)
return 33;
if (chHeader == 4 || chHeader == 6 || chHeader == 7)
return 65;
return 0;
}
//! Set this key data to be invalid
void Invalidate()
{
vch[0] = 0xFF;
}
public:
//! Construct an invalid public key.
CPubKey()
{
Invalidate();
}
//! Initialize a public key using begin/end iterators to byte data.
template <typename T>
void Set(const T pbegin, const T pend)
{
int len = pend == pbegin ? 0 : GetLen(pbegin[0]);
if (len && len == (pend - pbegin))
memcpy(vch, (unsigned char*)&pbegin[0], len);
else
Invalidate();
}
//! Construct a public key using begin/end iterators to byte data.
template <typename T>
CPubKey(const T pbegin, const T pend)
{
Set(pbegin, pend);
}
//! Construct a public key from a byte vector.
CPubKey(const std::vector<unsigned char>& vch)
{
Set(vch.begin(), vch.end());
}
//! Simple read-only vector-like interface to the pubkey data.
unsigned int size() const { return GetLen(vch[0]); }
const unsigned char* begin() const { return vch; }
const unsigned char* end() const { return vch + size(); }
const unsigned char& operator[](unsigned int pos) const { return vch[pos]; }
//! Comparator implementation.
friend bool operator==(const CPubKey& a, const CPubKey& b)
{
return a.vch[0] == b.vch[0] &&
memcmp(a.vch, b.vch, a.size()) == 0;
}
friend bool operator!=(const CPubKey& a, const CPubKey& b)
{
return !(a == b);
}
friend bool operator<(const CPubKey& a, const CPubKey& b)
{
return a.vch[0] < b.vch[0] ||
(a.vch[0] == b.vch[0] && memcmp(a.vch, b.vch, a.size()) < 0);
}
//! Implement serialization, as if this was a byte vector.
unsigned int GetSerializeSize(int nType, int nVersion) const
{
return size() + 1;
}
template <typename Stream>
void Serialize(Stream& s, int nType, int nVersion) const
{
unsigned int len = size();
::WriteCompactSize(s, len);
s.write((char*)vch, len);
}
template <typename Stream>
void Unserialize(Stream& s, int nType, int nVersion)
{
unsigned int len = ::ReadCompactSize(s);
if (len <= 65) {
s.read((char*)vch, len);
} else {
// invalid pubkey, skip available data
char dummy;
while (len--)
s.read(&dummy, 1);
Invalidate();
}
}
//! Get the KeyID of this public key (hash of its serialization)
CKeyID GetID() const
{
return CKeyID(Hash160(vch, vch + size()));
}
//! Get the 256-bit hash of this public key.
uint256 GetHash() const
{
return Hash(vch, vch + size());
}
/*
* Check syntactic correctness.
*
* Note that this is consensus critical as CheckSig() calls it!
*/
bool IsValid() const
{
return size() > 0;
}
//! fully validate whether this is a valid public key (more expensive than IsValid())
bool IsFullyValid() const;
//! Check whether this is a compressed public key.
bool IsCompressed() const
{
return size() == 33;
}
/**
* Verify a DER signature (~72 bytes).
* If this public key is not fully valid, the return value will be false.
*/
bool Verify(const uint256& hash, const std::vector<unsigned char>& vchSig) const;
//! Recover a public key from a compact signature.
bool RecoverCompact(const uint256& hash, const std::vector<unsigned char>& vchSig);
//! Turn this public key into an uncompressed public key.
bool Decompress();
//! Derive BIP32 child pubkey.
bool Derive(CPubKey& pubkeyChild, unsigned char ccChild[32], unsigned int nChild, const unsigned char cc[32]) const;
};
struct CExtPubKey {
unsigned char nDepth;
unsigned char vchFingerprint[4];
unsigned int nChild;
unsigned char vchChainCode[32];
CPubKey pubkey;
friend bool operator==(const CExtPubKey& a, const CExtPubKey& b)
{
return a.nDepth == b.nDepth && memcmp(&a.vchFingerprint[0], &b.vchFingerprint[0], 4) == 0 && a.nChild == b.nChild &&
memcmp(&a.vchChainCode[0], &b.vchChainCode[0], 32) == 0 && a.pubkey == b.pubkey;
}
void Encode(unsigned char code[74]) const;
void Decode(const unsigned char code[74]);
bool Derive(CExtPubKey& out, unsigned int nChild) const;
};
#endif // BITCOIN_PUBKEY_H

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@ -10,7 +10,7 @@
#include "crypto/sha1.h"
#include "crypto/sha2.h"
#include "eccryptoverify.h"
#include "key.h"
#include "pubkey.h"
#include "script/script.h"
#include "uint256.h"
#include "util.h"

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@ -5,7 +5,7 @@
#include "sigcache.h"
#include "key.h"
#include "pubkey.h"
#include "random.h"
#include "uint256.h"
#include "util.h"

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@ -5,6 +5,7 @@
#include "script/standard.h"
#include "pubkey.h"
#include "script/script.h"
#include "util.h"
#include "utilstrencodings.h"

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@ -6,8 +6,7 @@
#ifndef H_BITCOIN_SCRIPT_STANDARD
#define H_BITCOIN_SCRIPT_STANDARD
#include "key.h"
#include "script/script.h"
#include "uint256.h"
#include "script/interpreter.h"
#include <boost/variant.hpp>
@ -15,6 +14,7 @@
#include <stdint.h>
class CScript;
class CKeyID;
/** A reference to a CScript: the Hash160 of its serialization (see script.h) */
class CScriptID : public uint160

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@ -4,6 +4,7 @@
#include "main.h"
#include "miner.h"
#include "pubkey.h"
#include "uint256.h"
#include "util.h"

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@ -2,6 +2,7 @@
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "pubkey.h"
#include "key.h"
#include "script/script.h"
#include "script/standard.h"

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@ -7,6 +7,7 @@
#include "key.h"
#include "keystore.h"
#include "script/script.h"
#include "script/standard.h"
#include <boost/foreach.hpp>