mirror of
https://github.com/go-gitea/gitea
synced 2025-10-31 19:38:23 +00:00
75 lines
2.0 KiB
Go
75 lines
2.0 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"
|
|
|
|
"golang.org/x/crypto/argon2"
|
|
)
|
|
|
|
func init() {
|
|
MustRegister("argon2", NewArgon2Hasher)
|
|
}
|
|
|
|
// Argon2Hasher implements PasswordHasher
|
|
// and uses the Argon2 key derivation function, hybrant variant
|
|
type Argon2Hasher struct {
|
|
time uint32
|
|
memory uint32
|
|
threads uint8
|
|
keyLen uint32
|
|
}
|
|
|
|
// HashWithSaltBytes a provided password and salt
|
|
func (hasher *Argon2Hasher) HashWithSaltBytes(password string, salt []byte) string {
|
|
if hasher == nil {
|
|
return ""
|
|
}
|
|
return hex.EncodeToString(argon2.IDKey([]byte(password), salt, hasher.time, hasher.memory, hasher.threads, hasher.keyLen))
|
|
}
|
|
|
|
// NewArgon2Hasher is a factory method to create an Argon2Hasher
|
|
// The provided config should be either empty or of the form:
|
|
// "<time>$<memory>$<threads>$<keyLen>", where <x> is the string representation
|
|
// of an integer
|
|
func NewArgon2Hasher(config string) *Argon2Hasher {
|
|
// This default configuration uses the following parameters:
|
|
// time=2, memory=64*1024, threads=8, keyLen=50.
|
|
// It will make two passes through the memory, using 64MiB in total.
|
|
// This matches the original configuration for `argon2` prior to storing hash parameters
|
|
// in the database.
|
|
// THESE VALUES MUST NOT BE CHANGED OR BACKWARDS COMPATIBILITY WILL BREAK
|
|
hasher := &Argon2Hasher{
|
|
time: 2,
|
|
memory: 1 << 16,
|
|
threads: 8,
|
|
keyLen: 50,
|
|
}
|
|
|
|
if config == "" {
|
|
return hasher
|
|
}
|
|
|
|
vals := strings.SplitN(config, "$", 4)
|
|
if len(vals) != 4 {
|
|
log.Error("invalid argon2 hash spec %s", config)
|
|
return nil
|
|
}
|
|
|
|
var err error
|
|
hasher.time, err = parseUintParam[uint32](vals[0], "time", "argon2", config, nil)
|
|
hasher.memory, err = parseUintParam[uint32](vals[1], "memory", "argon2", config, err)
|
|
hasher.threads, err = parseUintParam[uint8](vals[2], "threads", "argon2", config, err)
|
|
hasher.keyLen, err = parseUintParam[uint32](vals[3], "keyLen", "argon2", config, err)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
|
|
return hasher
|
|
}
|