JAVA和PYTHON同时实现AES的加密解密操作---且生成的BASE62编码一致

终于有机会生产JAVA的东东了。

有点兴奋。

花了一天搞完。。

java(关键key及算法有缩减):

package com.security;

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

/**
* 实现AES加密解密
* cg882
* 2016-11-16
*/
public class AESencrp {

// 加密算法
private String ALGO = "AES";
private String ALGO_MODE = "AES/CBC/NoPadding";
private String akey = "16bit";
private String aiv = "16bit";

/**
* 用来进行加密的操作
*
* @param Data
* @return
* @throws Exception
*/
public String encrypt(String Data) throws Exception {
try {
Cipher cipher = Cipher.getInstance(ALGO_MODE);
int blockSize = cipher.getBlockSize();
byte[] dataBytes = Data.getBytes();
int plaintextLength = dataBytes.length;
if (plaintextLength % blockSize != 0) {
plaintextLength = plaintextLength + (blockSize - (plaintextLength % blockSize));
}
byte[] plaintext = new byte[plaintextLength];
System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);

SecretKeySpec keyspec = new SecretKeySpec(akey.getBytes("utf-8"), ALGO);
IvParameterSpec ivspec = new IvParameterSpec(aiv.getBytes("utf-8"));
cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
byte[] encrypted = cipher.doFinal(plaintext);
String EncStr = new sun.misc.BASE64Encoder().encode(encrypted);
return EncStr ;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}

/**
* 用来进行解密的操作
*
* @param encryptedData
* @return
* @throws Exception
*/
public String decrypt(String encryptedData) throws Exception {
try {
byte[] encrypted1 = new sun.misc.BASE64Decoder().decodeBuffer(encryptedData);

Cipher cipher = Cipher.getInstance(ALGO_MODE);
SecretKeySpec keyspec = new SecretKeySpec(akey.getBytes("utf-8"), ALGO);
IvParameterSpec ivspec = new IvParameterSpec(aiv.getBytes("utf-8"));

cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);
byte[] original = cipher.doFinal(encrypted1);
String originalString = new String(original);
return originalString;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}

}

测试JAVA的代码：

package com.security;

/**
* 实现AES加密
* cg882
* 2016-11-16
*/
public class Checker {
public static void main(String[] args) throws Exception {
// 创建加解密
AESencrp aes = new AESencrp();
// 要进行加密的密码
String password = "password^*(&( 09-8ADF";
// 进行加密后的字符串
String passwordEnc = aes.encrypt(password);
String passwordDec = aes.decrypt(passwordEnc);
System.out.println("原来的密码 : " + password);
System.out.println("加密后的密码 : " + passwordEnc);
System.out.println("解密后的原密码 : " + passwordDec);
}
}

python就简单多罗。。。。

#!/usr/bin/env python
# -*- coding: utf-8 -*-

from Crypto.Cipher import AES
import base64
import os

BLOCK_SIZE = 16
PADDING = '\0'
pad_it = lambda s: s+(16 - len(s)%16)*PADDING
key = '16bit'
iv = '16bit'

#使用aes算法，进行加密解密操作
#为跟java实现同样的编码，注意PADDING符号自定义
def encrypt_aes(sourceStr):
generator = AES.new(key, AES.MODE_CBC, iv)
crypt = generator.encrypt(pad_it(sourceStr))
cryptedStr = base64.b64encode(crypt)
return cryptedStr

def decrypt_aes(cryptedStr):
generator = AES.new(key, AES.MODE_CBC, iv)
cryptedStr = base64.b64decode(cryptedStr)
recovery = generator.decrypt(cryptedStr)
decryptedStr = recovery.rstrip(PADDING)
return decryptedStr

sourceStr = 'password^*(&( 09-8ADF'

print encrypt_aes(sourceStr)
print decrypt_aes(encrypt_aes(sourceStr))

结果图：



有几个小技巧跟进解决一下：

1，如果安装PYTHON扩展库时，需要C库进行编译，而自己又没安装权限或是BAT文件不对时，

直接从网上找预编译好的WHL文件，或者可以解决问题。

2，JAVA代码手工编译源码，执行程序，生成jar的例子如下（注意按包结构建好目录，执行命令时，在包顶层目录执行相关命令）

A编译java源代码

javac  -cp com/security com/security/*.java

B执行main文件，并指定包路径

java -cp . com/security/Checker

C指定class生成jar包

jar cvf AESencrp.jar com/security/AESencrp.class