|
|
// Copyright 2021, Chef. All rights reserved.
|
|
|
// https://github.com/q191201771/naza
|
|
|
//
|
|
|
// Use of this source code is governed by a MIT-style license
|
|
|
// that can be found in the License file.
|
|
|
//
|
|
|
// Author: Chef (191201771@qq.com)
|
|
|
|
|
|
package crypto
|
|
|
|
|
|
import (
|
|
|
"crypto/aes"
|
|
|
"crypto/cipher"
|
|
|
)
|
|
|
|
|
|
// TODO(chef): package crypto和std重复，重命名加上naza前缀
|
|
|
|
|
|
var CommonIv = []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f}
|
|
|
|
|
|
// @param key 16字节 -> AES128
|
|
|
//
|
|
|
// 24字节 -> AES192
|
|
|
// 32字节 -> AES256
|
|
|
func EncryptAesWithCbc(in []byte, key []byte, iv []byte) ([]byte, error) {
|
|
|
block, err := aes.NewCipher(key)
|
|
|
if err != nil {
|
|
|
return nil, err
|
|
|
}
|
|
|
encrypter := cipher.NewCBCEncrypter(block, iv)
|
|
|
out := make([]byte, len(in))
|
|
|
copy(out, in)
|
|
|
encrypter.CryptBlocks(out, out)
|
|
|
return out, nil
|
|
|
}
|
|
|
|
|
|
func DecryptAesWithCbc(in []byte, key []byte, iv []byte) ([]byte, error) {
|
|
|
block, err := aes.NewCipher(key)
|
|
|
if err != nil {
|
|
|
return nil, err
|
|
|
}
|
|
|
decrypter := cipher.NewCBCDecrypter(block, iv)
|
|
|
out := make([]byte, len(in))
|
|
|
copy(out, in)
|
|
|
decrypter.CryptBlocks(out, out)
|
|
|
return out, nil
|
|
|
}
|