forgejo/modules/auth/password/hash/pbkdf2.go
Gusted 1311e30a81
[GITEA] Drop sha256-simd in favor of stdlib
- In Go 1.21 the crypto/sha256 [got a massive
improvement](https://go.dev/doc/go1.21#crypto/sha256) by utilizing the
SHA instructions for AMD64 CPUs, which sha256-simd already was doing.
The performance is now on par and I think it's preferable to use the
standard library rather than a package when possible.

```
cpu: AMD Ryzen 5 3600X 6-Core Processor
                │  simd.txt   │               go.txt                │
                │   sec/op    │    sec/op     vs base               │
Hash/8Bytes-12    63.25n ± 1%    73.38n ± 1%  +16.02% (p=0.002 n=6)
Hash/64Bytes-12   98.73n ± 1%   105.30n ± 1%   +6.65% (p=0.002 n=6)
Hash/1K-12        567.2n ± 1%    572.8n ± 1%   +0.99% (p=0.002 n=6)
Hash/8K-12        4.062µ ± 1%    4.062µ ± 1%        ~ (p=0.396 n=6)
Hash/1M-12        512.1µ ± 0%    510.6µ ± 1%        ~ (p=0.485 n=6)
Hash/5M-12        2.556m ± 1%    2.564m ± 0%        ~ (p=0.093 n=6)
Hash/10M-12       5.112m ± 0%    5.127m ± 0%        ~ (p=0.093 n=6)
geomean           13.82µ         14.27µ        +3.28%

                │   simd.txt   │               go.txt                │
                │     B/s      │     B/s       vs base               │
Hash/8Bytes-12    120.6Mi ± 1%   104.0Mi ± 1%  -13.81% (p=0.002 n=6)
Hash/64Bytes-12   618.2Mi ± 1%   579.8Mi ± 1%   -6.22% (p=0.002 n=6)
Hash/1K-12        1.682Gi ± 1%   1.665Gi ± 1%   -0.98% (p=0.002 n=6)
Hash/8K-12        1.878Gi ± 1%   1.878Gi ± 1%        ~ (p=0.310 n=6)
Hash/1M-12        1.907Gi ± 0%   1.913Gi ± 1%        ~ (p=0.485 n=6)
Hash/5M-12        1.911Gi ± 1%   1.904Gi ± 0%        ~ (p=0.093 n=6)
Hash/10M-12       1.910Gi ± 0%   1.905Gi ± 0%        ~ (p=0.093 n=6)
geomean           1.066Gi        1.032Gi        -3.18%
```

(cherry picked from commit abd94ff5b59c86e793fd9bf12187ea6cfd1f3fa1)
(cherry picked from commit 15e81637abf70576a564cf9eecaa9640228afb5b)

Conflicts:
	go.mod
	https://codeberg.org/forgejo/forgejo/pulls/1581
(cherry picked from commit 325d92917f655c999b81b08832ee623d6b669f0f)

Conflicts:
	modules/context/context_cookie.go
	https://codeberg.org/forgejo/forgejo/pulls/1617
(cherry picked from commit 358819e8959886faa171ac16541097500d0a703e)
(cherry picked from commit 362fd7aae17832fa922fa017794bc564ca43060d)
(cherry picked from commit 4f64ee294ee05c93042b6ec68f0a179ec249dab9)
(cherry picked from commit 4bde77f7b1)
2023-11-13 14:09:45 +01:00

67 lines
1.6 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() {
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
}