[C#] 與Android共舞-AES 加解密(Android 端)
2013-03-13
上一篇文章 [C#] 與Android共舞-AES 加密(C# 端) 我們提到 我們在 C# 端
使用AES 256 進行加密，其Key IV 如下:
現在，我們來看看Android 端的地方如何解密
Andoird Code 解密端:
public static byte[] decryptAES (byte[] ivBytes, byte[] keyBytes,byte[] textBytes) {
try {
AlgorithmParameterSpec ivSpec = new IvParameterSpec(ivBytes);
SecretKeySpec newKey = new SecretKeySpec(keyBytes, "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, newKey, ivSpec);
return cipher.doFinal(textBytes);
} catch (Exception ex) {
return null;
}
}
呼叫 解密:
try{
String key="12345678901234567890123456789012";
String iv="1234567890abcdef";
String encryptString="wifhXJU46ETengY/nA+sGQ==";
byte[] descryptBytes=decryptAES(iv.getBytes("UTF-8"),key.getBytes("UTF-8"),Base64.decode(encryptString, Base64.DEFAULT));
Toast.makeText(this,new String(descryptBytes), Toast.LENGTH_LONG).show();
}catch(Exception ex){}
結果:
OK 解密完成，順便附上 加密的 function
public static byte[] encryptAES(byte[] ivBytes, byte[] keyBytes,byte[] textBytes) {
try {
AlgorithmParameterSpec ivSpec = new IvParameterSpec(ivBytes);
SecretKeySpec newKey = new SecretKeySpec(keyBytes, "AES");
Cipher cipher = null;
cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, newKey, ivSpec);
return cipher.doFinal(textBytes);
} catch (Exception ex) {
return null;
}
}
文章參考來源
https://gist.github.com/dealforest/1949873