原文:http://outofmemory.cn/code-snippet/35524/AES-with-javascript-java-csharp-python-or-php
c#里面的AES加密解密
在visual studio中写的c#代码
usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text;usingSystem.Security.Cryptography;namespacetest
{classClass1
{static void Main(string[] args)
{
Console.WriteLine("I am comming");
String source= "Test String";
String encryptData= Class1.Encrypt(source, "1234567812345678", "1234567812345678");
Console.WriteLine("=1==");
Console.WriteLine(encryptData);
Console.WriteLine("=2==");
String decryptData= Class1.Decrypt("2fbwW9+8vPId2/foafZq6Q==", "1234567812345678", "1234567812345678");
Console.WriteLine(decryptData);
Console.WriteLine("=3==");
Console.WriteLine("I will go out");
}public static string Encrypt(string toEncrypt, string key, stringiv)
{byte[] keyArray =UTF8Encoding.UTF8.GetBytes(key);byte[] ivArray =UTF8Encoding.UTF8.GetBytes(iv);byte[] toEncryptArray =UTF8Encoding.UTF8.GetBytes(toEncrypt);
RijndaelManaged rDel= newRijndaelManaged();
rDel.Key=keyArray;
rDel.IV=ivArray;
rDel.Mode=CipherMode.CBC;
rDel.Padding=PaddingMode.Zeros;
ICryptoTransform cTransform=rDel.CreateEncryptor();byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);return Convert.ToBase64String(resultArray, 0, resultArray.Length);
}public static string Decrypt(string toDecrypt, string key, stringiv)
{byte[] keyArray =UTF8Encoding.UTF8.GetBytes(key);byte[] ivArray =UTF8Encoding.UTF8.GetBytes(iv);byte[] toEncryptArray =Convert.FromBase64String(toDecrypt);
RijndaelManaged rDel= newRijndaelManaged();
rDel.Key=keyArray;
rDel.IV=ivArray;
rDel.Mode=CipherMode.CBC;
rDel.Padding=PaddingMode.Zeros;
ICryptoTransform cTransform=rDel.CreateDecryptor();byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);returnUTF8Encoding.UTF8.GetString(resultArray);
}
}
}
其中加密后以及解密后的字符串都能成功打印,但Console.WriteLine("=3==");之后的输出就没有了,最后输出个线程返回值0,然后就没有然后了。c#不懂,就不深究了,就已执行的部分,是符合要求了。
Java的AES加密解密:
java代码,测试也是可以的
importjavax.crypto.Cipher;importjavax.crypto.spec.IvParameterSpec;importjavax.crypto.spec.SecretKeySpec;importorg.junit.Test;
...
@Testpublic void testCrossLanguageEncrypt() throwsException{
System.out.println(encrypt());
System.out.println(desEncrypt());
}public static String encrypt() throwsException {try{
String data= "Test String";
String key= "1234567812345678";
String iv= "1234567812345678";
Cipher cipher= Cipher.getInstance("AES/CBC/NoPadding");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(key.getBytes(), "AES");
IvParameterSpec ivspec= newIvParameterSpec(iv.getBytes());
cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);byte[] encrypted =cipher.doFinal(plaintext);return newsun.misc.BASE64Encoder().encode(encrypted);
}catch(Exception e) {
e.printStackTrace();return null;
}
}public static String desEncrypt() throwsException {try{
String data= "2fbwW9+8vPId2/foafZq6Q==";
String key= "1234567812345678";
String iv= "1234567812345678";byte[] encrypted1 = newsun.misc.BASE64Decoder().decodeBuffer(data);
Cipher cipher= Cipher.getInstance("AES/CBC/NoPadding");
SecretKeySpec keyspec= new SecretKeySpec(key.getBytes(), "AES");
IvParameterSpec ivspec= newIvParameterSpec(iv.getBytes());
cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);byte[] original =cipher.doFinal(encrypted1);
String originalString= newString(original);returnoriginalString;
}catch(Exception e) {
e.printStackTrace();return null;
}
}
php的AES加密解密
php代码,php很多东西都是提供好的,直接用函数,但是php目前所知填充模式只有ZeroPadding,于是其他语言就只能跟着它来了:
$encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $privateKey, $data, MCRYPT_MODE_CBC, $iv);echo($encrypted);echo '
';echo(base64_encode($encrypted));echo '
';//解密
$encryptedData = base64_decode("2fbwW9+8vPId2/foafZq6Q==");$decrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $privateKey, $encryptedData, MCRYPT_MODE_CBC, $iv);echo($decrypted);?>
Javascript下aes加解密,试过也可以,需要在https://code.google.com/p/crypto-js/下载工具包
导入文件,aes.js需要导入crypto-js压缩包中rollups文件夹下的那个aes.js文件,如果引入的是components文件夹下的aes.js是会报错的
var data = "Test String";var key = CryptoJS.enc.Latin1.parse('1234567812345678');var iv = CryptoJS.enc.Latin1.parse('1234567812345678');//加密
var encrypted =CryptoJS.AES.encrypt(data,key,{iv:iv,mode:CryptoJS.mode.CBC,padding:CryptoJS.pad.ZeroPadding});
document.write(encrypted.ciphertext);
document.write('
');
document.write(encrypted.key);
document.write('
');
document.write(encrypted.iv);
document.write('
');
document.write(encrypted.salt);
document.write('
');
document.write(encrypted);
document.write('
');//解密
var decrypted =CryptoJS.AES.decrypt(encrypted,key,{iv:iv,padding:CryptoJS.pad.ZeroPadding});
console.log(decrypted.toString(CryptoJS.enc.Utf8));
成功加解密,最后解密的字符串串在浏览器的控制台里才能看到。
python的AES加密解密
最后加一个python下的aes,需要安装python Crypto:
#!/usr/bin/env python#-*- coding: utf-8 -*-
from Crypto.Cipher importAESimportbase64
PADDING= '\0'
#PADDING = ' '
pad_it = lambda s: s+(16 - len(s)%16)*PADDING
key= '1234567812345678'iv= '1234567812345678'source= 'Test String'generator=AES.new(key, AES.MODE_CBC, iv)
crypt=generator.encrypt(pad_it(source))
cryptedStr=base64.b64encode(crypt)printcryptedStr
generator=AES.new(key, AES.MODE_CBC, iv)
recovery=generator.decrypt(crypt)print recovery.rstrip(PADDING)
注意python下需要用'\0'来填充,如果是空格来填充,python加密得到的字符串会跟其他语言不同。另外注意generator在加密的时候使用过,解密的时候需重新生成再解密,否则解密失败。最后得到的字符串,在python控制台看到尾部是多个NUL这样的东西,要这样recovery.rstrip(PADDING)去除掉才是原始字符串。
可以看到aes加密的中间结果是byte[]类型,直接new String(byte[])会看不到有意义的中间结果,这里用的是base64,是因为各个语言都有这样的支持。在同个语言内,也有bytesToHexString这样的方式。
跨语言加解密的要求是:AES/CBC/ZeroPadding 128位模式,key和iv一样,编码统一用utf-8。不支持ZeroPadding的就用NoPadding.