This repository has been archived by the owner on Mar 23, 2023. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 0
/
script.go
61 lines (53 loc) · 1.67 KB
/
script.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
// Copyright [2020] [thinkgos] thinkgo@aliyun.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package password
import (
"crypto/rand"
"crypto/subtle"
"encoding/base64"
"io"
"golang.org/x/crypto/scrypt"
)
// GenerateSCryptFromPassword password hash encryption
func GenerateSCryptFromPassword(password string) (string, error) {
unencodedSalt := make([]byte, maxSaltSize)
_, err := io.ReadFull(rand.Reader, unencodedSalt)
if err != nil {
return "", err
}
rb, err := scrypt.Key([]byte(password), unencodedSalt, 16384, 8, 1, 32)
if err != nil {
return "", err
}
return base64.StdEncoding.EncodeToString(append(unencodedSalt, rb...)), nil
}
// CompareSCryptHashAndPassword password hash verification
func CompareSCryptHashAndPassword(hashedPassword, password string) error {
orgRb, err := base64.StdEncoding.DecodeString(hashedPassword)
if err != nil {
return err
}
if len(orgRb) < maxSaltSize {
return ErrCompareFailed
}
unencodedSalt := orgRb[:maxSaltSize]
rb, err := scrypt.Key([]byte(password), unencodedSalt, 16384, 8, 1, 32)
if err != nil {
return err
}
if subtle.ConstantTimeCompare(orgRb[maxSaltSize:], rb) == 1 {
return nil
}
return ErrCompareFailed
}