mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-25 13:19:37 -05:00
d71a8cc9fb
- 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 commitabd94ff5b5) (cherry picked from commit15e81637ab) Conflicts: go.mod https://codeberg.org/forgejo/forgejo/pulls/1581 (cherry picked from commit 5caea2d75aeac78fb306f58a3cf7809d5b70c7f2) (cherry picked from commit08da542cce)
78 lines
2.3 KiB
Go
78 lines
2.3 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package secret
|
|
|
|
import (
|
|
"crypto/aes"
|
|
"crypto/cipher"
|
|
"crypto/rand"
|
|
"crypto/sha256"
|
|
"encoding/base64"
|
|
"encoding/hex"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
)
|
|
|
|
// AesEncrypt encrypts text and given key with AES.
|
|
func AesEncrypt(key, text []byte) ([]byte, error) {
|
|
block, err := aes.NewCipher(key)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("AesEncrypt invalid key: %v", err)
|
|
}
|
|
b := base64.StdEncoding.EncodeToString(text)
|
|
ciphertext := make([]byte, aes.BlockSize+len(b))
|
|
iv := ciphertext[:aes.BlockSize]
|
|
if _, err = io.ReadFull(rand.Reader, iv); err != nil {
|
|
return nil, fmt.Errorf("AesEncrypt unable to read IV: %w", err)
|
|
}
|
|
cfb := cipher.NewCFBEncrypter(block, iv)
|
|
cfb.XORKeyStream(ciphertext[aes.BlockSize:], []byte(b))
|
|
return ciphertext, nil
|
|
}
|
|
|
|
// AesDecrypt decrypts text and given key with AES.
|
|
func AesDecrypt(key, text []byte) ([]byte, error) {
|
|
block, err := aes.NewCipher(key)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if len(text) < aes.BlockSize {
|
|
return nil, errors.New("AesDecrypt ciphertext too short")
|
|
}
|
|
iv := text[:aes.BlockSize]
|
|
text = text[aes.BlockSize:]
|
|
cfb := cipher.NewCFBDecrypter(block, iv)
|
|
cfb.XORKeyStream(text, text)
|
|
data, err := base64.StdEncoding.DecodeString(string(text))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("AesDecrypt invalid decrypted base64 string: %w", err)
|
|
}
|
|
return data, nil
|
|
}
|
|
|
|
// EncryptSecret encrypts a string with given key into a hex string
|
|
func EncryptSecret(key, str string) (string, error) {
|
|
keyHash := sha256.Sum256([]byte(key))
|
|
plaintext := []byte(str)
|
|
ciphertext, err := AesEncrypt(keyHash[:], plaintext)
|
|
if err != nil {
|
|
return "", fmt.Errorf("failed to encrypt by secret: %w", err)
|
|
}
|
|
return hex.EncodeToString(ciphertext), nil
|
|
}
|
|
|
|
// DecryptSecret decrypts a previously encrypted hex string
|
|
func DecryptSecret(key, cipherHex string) (string, error) {
|
|
keyHash := sha256.Sum256([]byte(key))
|
|
ciphertext, err := hex.DecodeString(cipherHex)
|
|
if err != nil {
|
|
return "", fmt.Errorf("failed to decrypt by secret, invalid hex string: %w", err)
|
|
}
|
|
plaintext, err := AesDecrypt(keyHash[:], ciphertext)
|
|
if err != nil {
|
|
return "", fmt.Errorf("failed to decrypt by secret, the key (maybe SECRET_KEY?) might be incorrect: %w", err)
|
|
}
|
|
return string(plaintext), nil
|
|
}
|