/
aes-cbc.go
50 lines (39 loc) · 927 Bytes
/
aes-cbc.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
package span
import (
"crypto/aes"
"crypto/cipher"
)
func MustAesCbcEncrypt(key, iv []byte, plaintext []byte) []byte {
result, err := AesCbcEncrypt(key, iv, plaintext)
if err != nil {
panic(err)
}
return result
}
func AesCbcEncrypt(key, iv []byte, plaintext []byte) ([]byte, error) {
c, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
b := cipher.NewCBCEncrypter(c, iv)
dst := make([]byte, len(plaintext))
b.CryptBlocks(dst, plaintext)
return dst, nil
}
func MustAesCbcDecrypt(key, iv []byte, ciphertext []byte) []byte {
result, err := AesCbcDecrypt(key, iv, ciphertext)
if err != nil {
panic(err)
}
return result
}
func AesCbcDecrypt(key, iv []byte, ciphertext []byte) ([]byte, error) {
c, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
b := cipher.NewCBCDecrypter(c, iv)
dst := make([]byte, len(ciphertext))
b.CryptBlocks(dst, ciphertext)
return dst, nil
}