iOS和Android中的AES加密,以及C#.NET中的解密

以下是我的Android加密：

private static String Encrypt(String text,String key)
        throws Exception {
        Cipher cipher = Cipher.geTinstance("AES/CBC/PKCS5Padding");
        byte[] keyBytes= new byte[16];
        byte[] b= key.getBytes("UTF-8");
        int len= b.length;
        if (len > keyBytes.length) len = keyBytes.length;
        System.arraycopy(b,keyBytes,len);
        SecretKeySpec keySpec = new SecretKeySpec(keyBytes,"AES");
        IvParameterSpec ivSpec = new IvParameterSpec(keyBytes);
        cipher.init(Cipher.ENCRYPT_MODE,keySpec,ivSpec);

        byte[] results = cipher.doFinal(text.getBytes("UTF-8"));
        String result = Base64.encodeBytes(results);
        return result;
        }

然后我用C#解密它：

public static String Decrypt(String textToDecrypt,String key)
    {
        System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();

        RijndaelManaged rijndaelCipher = new RijndaelManaged();
        rijndaelCipher.Mode = CipherMode.CBc;
        rijndaelCipher.Padding = PaddingMode.PKCS7;

        rijndaelCipher.KeySize = 0x80;
        rijndaelCipher.blockSize = 0x80;

        String decodedUrl = httpUtility.UrlDecode(textToDecrypt);
        byte[] encryptedData = Convert.FromBase64String(decodedUrl);
        byte[] pwdBytes = Encoding.UTF8.GetBytes(key);
        byte[] keyBytes = new byte[0x10];
        int len = pwdBytes.Length;
        if (len > keyBytes.Length)
        {
            len = keyBytes.Length;
        }
        Array.Copy(pwdBytes,len);
        rijndaelCipher.Key = keyBytes;
        rijndaelCipher.IV = keyBytes;
        byte[] plaintext = rijndaelCipher.CreateDecryptor().TransformFinalBlock(encryptedData,encryptedData.Length);
        return encoding.GetString(plaintext);
    }

这样做就像一个魅力,但是当我在iOS中尝试这样做时,问题就出现了.我是iphone / ipad的新开发应用程序,所以我去搜索它,几乎所有提供的代码示例如下：

- (NSData *)AESEncryptionWithKey:(NSString *)key {
char keyPtr[kCCKeySizeAES128]; // room for terminator (unused)
bzero(keyPtr,sizeof(keyPtr)); // fill with zeroes (for padding)

// fetch key data
[key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];

NSUInteger dataLength = [self length];

size_t bufferSize = dataLength + kCCBlockSizeAES128;
void *buffer = malloc(bufferSizE);

size_t numbytesEncrypted = 0;

CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt,kCCAlgorithmAES128,kCCOptionPKCS7Padding,keyPtr,kCCKeySizeAES128,NULL /* initialization vector (optional) */,[self bytes],[self length],/* input */
                                      buffer,bufferSize,/* output */
                                      &numbytesEncrypted);
if (cryptStatus == kCCsuccess) {
    //the returned NSData takes @R_450_11125@rship of the buffer and will free it on dealLOCATIOn
    return [NSData dataWithBytesnoCopy:buffer length:numbytesEncrypted];
}

free(buffer); //free the buffer;
return nil;

}

也许我有点太乐观了,当我希望在这里顺利过渡,因为当Android正在扔我的东西像：

“EgQVKvCLS4VKLoR0xEGexA ==”

那么iOS给了我：

"yP42c9gajUra7n0zSEuVJQ=="

希望这只是我忘记的东西,还是一些设置错了？

[updatE]结果现在显示在base64编码之后.