mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-04 17:38:42 +00:00
63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
|
// Copyright 2023 The Gitea Authors. All rights reserved.
|
||
|
|
// SPDX-License-Identifier: MIT
|
||
|
|
|
||
|
|
package hash
|
||
|
|
|
||
|
|
import (
|
||
|
|
"crypto/sha256"
|
||
|
|
"encoding/hex"
|
||
|
|
"strings"
|
||
|
|
|
||
|
|
"code.gitea.io/gitea/modules/log"
|
||
|
|
|
||
|
|
"golang.org/x/crypto/pbkdf2"
|
||
|
|
)
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
Register("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>$<keyLen>", where <x> is the string representation
|
||
|
|
// of an integer
|
||
|
|
func NewPBKDF2Hasher(config string) *PBKDF2Hasher {
|
||
|
|
hasher := &PBKDF2Hasher{
|
||
|
|
iter: 10_000,
|
||
|
|
keyLen: 50,
|
||
|
|
}
|
||
|
|
|
||
|
|
if config == "" {
|
||
|
|
return hasher
|
||
|
|
}
|
||
|
|
|
||
|
|
vals := strings.SplitN(config, "$", 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
|
||
|
|
}
|