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gitea/modules/auth/password/hash/pbkdf2.go
zeripath 1319ba6742
Use minio/sha256-simd for accelerated SHA256 (#23052)
minio/sha256-simd provides additional acceleration for SHA256 using
AVX512, SHA Extensions for x86 and ARM64 for ARM.

It provides a drop-in replacement for crypto/sha256 and if the
extensions are not available it falls back to standard crypto/sha256.

---------

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
2023-02-22 14:21:46 -05:00

67 lines
1.6 KiB
Go

// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package hash
import (
"encoding/hex"
"strings"
"code.gitea.io/gitea/modules/log"
"github.com/minio/sha256-simd"
"golang.org/x/crypto/pbkdf2"
)
func init() {
MustRegister("pbkdf2", NewPBKDF2Hasher)
}
// PBKDF2Hasher implements PasswordHasher
// and uses the PBKDF2 key derivation function.
type PBKDF2Hasher struct {
iter, keyLen int
}
// HashWithSaltBytes a provided password and salt
func (hasher *PBKDF2Hasher) HashWithSaltBytes(password string, salt []byte) string {
if hasher == nil {
return ""
}
return hex.EncodeToString(pbkdf2.Key([]byte(password), salt, hasher.iter, hasher.keyLen, sha256.New))
}
// NewPBKDF2Hasher is a factory method to create an PBKDF2Hasher
// config should be either empty or of the form:
// "<iter>$<keyLen>", where <x> is the string representation
// of an integer
func NewPBKDF2Hasher(config string) *PBKDF2Hasher {
// This default configuration uses the following parameters:
// iter=10000, keyLen=50.
// This matches the original configuration for `pbkdf2` prior to storing parameters
// in the database.
// THESE VALUES MUST NOT BE CHANGED OR BACKWARDS COMPATIBILITY WILL BREAK
hasher := &PBKDF2Hasher{
iter: 10_000,
keyLen: 50,
}
if config == "" {
return hasher
}
vals := strings.SplitN(config, "$", 2)
if len(vals) != 2 {
log.Error("invalid pbkdf2 hash spec %s", config)
return nil
}
var err error
hasher.iter, err = parseIntParam(vals[0], "iter", "pbkdf2", config, nil)
hasher.keyLen, err = parseIntParam(vals[1], "keyLen", "pbkdf2", config, err)
if err != nil {
return nil
}
return hasher
}