AES ECB加密实现（java/php/python）

ゞ浴缸里的玫瑰 2022-05-26 06:09 287阅读 0赞

**AES ECB加密实现（java/php/python）**

这里做个一个加密实现的记录，方便以后查找

AES加密 ECB模式 PKCS5填充 128位密码/密码块   
ECB模式是将明文按照固定大小的块进行加密的，块大小不足则进行填充。ECB模式没有用到向量。

**python 实现**

\# -\*- coding=utf-8-\*-

from Crypto.Cipher import AES

import os

from Crypto import Random

import base64

"""

aes加密算法

padding : PKCS5

"""

classAESUtil:

\_\_BLOCK\_SIZE\_16 = BLOCK\_SIZE\_16 =AES.block\_size

@staticmethod

defencryt(str, key):

cipher = AES.new(key, AES.MODE\_ECB)

x = AESUtil.\_\_BLOCK\_SIZE\_16 - (len(str)% AESUtil.\_\_BLOCK\_SIZE\_16)

if x != 0:

str = str + chr(x)\*x

msg = cipher.encrypt(str)

msg =base64.urlsafe\_b64encode(msg).replace('=', '')

return msg

@staticmethod

defdecrypt(enStr, key):

cipher = AES.new(key, AES.MODE\_ECB)

enStr += (len(enStr) % 4)\*"="

decryptByts =base64.urlsafe\_b64decode(enStr)

msg = cipher.decrypt(decryptByts)

paddingLen = ord(msg\[len(msg)-1\])

return msg\[0:-paddingLen\]

if \_\_name\_\_ == "\_\_main\_\_":

print AESUtil.encryt("512345", "1234567812345678")

print AESUtil.decrypt("1MbqzdK0IzP8vchDgRlzvw", "1234567812345678")

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**PHP实现**

classAES \{

var$key = "1234567812345678";

publicfunction\_\_set($key, $value)\{

$this\->$key = $value;

publicfunction\_\_get($key) \{

return$this\->$key;

publicfunctionencrypt($input) \{

$size = mcrypt\_get\_block\_size(MCRYPT\_RIJNDAEL\_128,MCRYPT\_MODE\_ECB);

$input = $this\->pkcs5\_pad($input, $size);

$td =mcrypt\_module\_open(MCRYPT\_RIJNDAEL\_128, '', MCRYPT\_MODE\_ECB, '');

$iv = mcrypt\_create\_iv(mcrypt\_enc\_get\_iv\_size($td), MCRYPT\_RAND);

mcrypt\_generic\_init($td, $this\->key, $iv);

$data = mcrypt\_generic($td, $input);

mcrypt\_generic\_deinit($td);

mcrypt\_module\_close($td);

$data = $this\->base64url\_encode($data);

return$data;

privatefunctionpkcs5\_pad($text, $blocksize) \{

$pad = $blocksize \- (strlen($text) % $blocksize);

return$text . str\_repeat(chr($pad), $pad);

functionstrToHex($string)

$hex="";

for  ($i=0;$i<strlen($string);$i\++)

$hex.=dechex(ord($string\[$i\]));

$hex=strtoupper($hex);

return  $hex;

functionhexToStr($hex)

$string="";

for  ($i=0;$i<strlen($hex)-1;$i\+=2)

$string.=chr(hexdec($hex\[$i\].$hex\[$i\+1\]));

return  $string;

publicfunctiondecrypt($sStr) \{

$decrypted= mcrypt\_decrypt(

MCRYPT\_RIJNDAEL\_128,

//$sKey,

$this\->key,

//base64\_decode($sStr),

$this\->base64url\_decode($sStr),

//$sStr,

MCRYPT\_MODE\_ECB

);

$dec\_s = strlen($decrypted);

$padding = ord($decrypted\[$dec\_s\-1\]);

$decrypted = substr($decrypted, 0, -$padding);

return$decrypted;

/\*\*

\*url 安全的base64编码 sunlonglong

\*/

functionbase64url\_encode($data) \{

return rtrim(strtr(base64\_encode($data), '+/', '-\_'), '=');

/\*\*

\*url 安全的base64解码 sunlonglong

\*/

functionbase64url\_decode($data) \{

return base64\_decode(str\_pad(strtr($data, '-\_', '+/'), strlen($data) % 4, '=', STR\_PAD\_RIGHT));

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使用示例

$aes = new AES();

//设置密钥

$aes\->\_\_set("key", "1234567812345678");

echo$aes\->encrypt("123");

echo"\\r\\n";

echo$aes\->decrypt("q7eZEivlY5ra7BUPzoF9vg");

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**java实现**

publicclassSecureUtils \{

publicstatic String decryptByAes(String sSrc, String reqKey) \{

try \{