as3crypto加密与C#/.NET不匹配

Question

目前，我在C#/.NET中有这样的算法：

    private static byte[] key = { };
    private static readonly byte[] IV = { 20, 52, 88, 120, 76, 89, 205, 239 };
    private static readonly string sEncryptionKey = "abcdefgh";

    public static string Encrypt(string stringToEncrypt)
    {
        try
        {
            Debug.WriteLine("stringToEncrypt: " + stringToEncrypt);
            key = System.Text.Encoding.UTF8.GetBytes(sEncryptionKey.Substring(0, 8));
            Debug.WriteLine("key: " + Convert.ToBase64String(key));
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
            //var des = new AesCryptoServiceProvider();
            des.Padding = PaddingMode.Zeros;
            byte[] inputByteArray = Encoding.UTF8.GetBytes(stringToEncrypt);
            Debug.WriteLine("inputByteArray: " + Convert.ToBase64String(inputByteArray));
            MemoryStream ms = new MemoryStream();
            CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(key, IV), CryptoStreamMode.Write);
            Debug.WriteLine("IV: " + Convert.ToBase64String(IV));
            cs.Write(inputByteArray, 0, inputByteArray.Length);
            cs.FlushFinalBlock();
            Debug.WriteLine("Convert.ToBase64String(ms.ToArray()): " + Convert.ToBase64String(ms.ToArray()));
            return Convert.ToBase64String(ms.ToArray());
        }
        catch (Exception e)
        {
            return e.Message;
        }
    }

问题是，我试图通过使用ActionScript DES获得这个算法的结果，以匹配我的as3crypto的结果：

    protected function encrypt(input:String):String
    {
        var logData:Object = new Object();

        var decrKey:String = new String("abcdefgh");
        // byte[] IV = { 20, 52, 88, 120, 76, 89, 205, 239 };
        var iv:ByteArray = new ByteArray();
        iv.writeByte(20);

        iv.writeByte(52);

        iv.writeByte(88);

        iv.writeByte(120);

        iv.writeByte(76);

        iv.writeByte(89);

        iv.writeByte(205);

        iv.writeByte(239);

        iv.position = 0;
        trace("iv: " + iv);         

        //var decrIV:String = iv.readUTF();
        var decrIV:String = new String();
        while (iv.bytesAvailable > 0) { 
            //read to letter or end of bytes 
            decrIV += iv.readUTFBytes(1);
        } 
        var inputBA:ByteArray=Hex.toArray(Hex.fromString(input));
        var key:ByteArray = Hex.toArray(Hex.fromString(decrKey));
        var pad:IPad = new NullPad();
        var aes:ICipher = Crypto.getCipher("des-cbc", key, pad);
        pad.setBlockSize(aes.getBlockSize());
        var ivmode:IVMode = des as IVMode;
        ivmode.IV = Hex.toArray(Hex.fromString(decrIV));
        des.encrypt(inputBA);

        return Base64.encodeByteArray( inputBA);
    }

有谁有什么不同的建议吗？我遗漏了什么？蒂娅。

更新：

这是我现在使用的ActionScript代码，但正如我的注释所指出的，它仍然与C#结果不同：

    protected function encrypt(input:String):String
    {
        var logData:Object = new Object();

        var decrKey:String = new String("tuber$20");
        // byte[] IV = { 20, 52, 88, 120, 76, 89, 205, 239 };
        var iv:ByteArray = new ByteArray();
        iv.writeByte(20);

        iv.writeByte(52);

        iv.writeByte(88);

        iv.writeByte(120);

        iv.writeByte(76);

        iv.writeByte(89);

        iv.writeByte(205);

        iv.writeByte(239);

        iv.position = 0;
        trace("iv: " + iv);         

        //var decrIV:String = iv.readUTF();
        var decrIV:String = new String();
        while (iv.bytesAvailable > 0) { 
            //read to letter or end of bytes 
            decrIV += iv.readUTFBytes(1);
        }
       //var inputBA:ByteArray = Hex.toArray(Hex.fromString(input));
        var inputBA:ByteArray = new ByteArray(); 
        inputBA.writeUTFBytes(input);

        //var key:ByteArray = Hex.toArray(Hex.fromString(decrKey));
        var key:ByteArray = new ByteArray();
        inputBA.writeUTFBytes(decrKey);

        var pad:IPad = new NullPad();
        var aes:ICipher = Crypto.getCipher("des-cbc", key, pad);
        pad.setBlockSize(aes.getBlockSize());
        var ivmode:IVMode = aes as IVMode;
        //ivmode.IV = Hex.toArray(Hex.fromString(decrIV));
        ivmode.IV = new ByteArray();
        inputBA.writeUTFBytes(decrIV);

        aes.encrypt(inputBA);

        return Base64.encodeByteArray( inputBA);
    }

更新2:

“谢谢，”米格尔·桑切斯说。如果我将每一项数据分解并比较它们的输出，它们是相同的，除了最后一次加密：

    protected function encrypt(input:String):String
    {
        trace("stringToEncrypt: " + input);                     
        var logData:Object = new Object();

        var decrKey:String = new String("tuber$20");
        // byte[] IV = { 20, 52, 88, 120, 76, 89, 205, 239 };
        var iv:ByteArray = new ByteArray();
        iv.writeByte(20);

        iv.writeByte(52);

        iv.writeByte(88);

        iv.writeByte(120);

        iv.writeByte(76);

        iv.writeByte(89);

        iv.writeByte(205);

        iv.writeByte(239);

        iv.position = 0;
        trace("iv: " + Base64.encodeByteArray(iv));         

        //var decrIV:String = iv.readUTF();
        var decrIV:String = new String();
        while (iv.bytesAvailable > 0) { 
            //read to letter or end of bytes 
            decrIV += iv.readUTFBytes(1);
        }
        trace("decrIV: " + decrIV);

        //var inputBA:ByteArray = Hex.toArray(Hex.fromString(input));
        var inputBA:ByteArray = new ByteArray(); 
        inputBA.writeUTFBytes(input);
        trace("inputBA: " + Base64.encodeByteArray(inputBA));       

        //var key:ByteArray = Hex.toArray(Hex.fromString(decrKey));
        var key:ByteArray = new ByteArray();
        key.writeUTFBytes(decrKey);
        trace("key: " + Base64.encodeByteArray(key));   

        var pad:IPad = new NullPad();
        var aes:ICipher = Crypto.getCipher("des-cbc", key, pad);
        pad.setBlockSize(aes.getBlockSize());
        var ivmode:IVMode = aes as IVMode;
        //ivmode.IV = Hex.toArray(Hex.fromString(decrIV));
        ivmode.IV = new ByteArray();
        ivmode.IV.writeUTFBytes(decrIV);
        trace("ivmode.IV: " + Base64.encodeByteArray(ivmode.IV));

        aes.encrypt(inputBA);

        trace("Base64.encodeByteArray(inputBA): " + Base64.encodeByteArray(inputBA));
        return Base64.encodeByteArray(inputBA);
    }

下面是来自ActionScript的输出：

stringToEncrypt: a1d63a1fb90b422ecce953b3302b6e521f96
key: dHViZXIkMjA=
inputBA: YTFkNjNhMWZiOTBiNDIyZWNjZTk1M2IzMzAyYjZlNTIxZjk2
iv: FDRYeExZze8=
decrIV: 4XxLYÍï
ivmode.IV: FDRYeExZw43Drw==
Base64.encodeByteArray(inputBA): 6AJu1PUFRHx+Ykf0r1HlZVy39kR0HrOaw+wTHmnRPPunisp4TR0cSw==

stringToEncrypt: 10:00
key: dHViZXIkMjA=
inputBA: MTA6MDA=
iv: FDRYeExZze8=
decrIV: 4XxLYÍï
ivmode.IV: FDRYeExZw43Drw==
Base64.encodeByteArray(inputBA): N5VgWd0Ccu0=

下面是C#/.NET的输出：

stringToEncrypt: a1d63a1fb90b422ecce953b3302b6e521f96
key: dHViZXIkMjA=
inputByteArray: YTFkNjNhMWZiOTBiNDIyZWNjZTk1M2IzMzAyYjZlNTIxZjk2
IV: FDRYeExZze8=
Convert.ToBase64String(ms.ToArray()): h2jT8xR2SOPagrQwF3leuKFdEvHpYyfCUzEJw2lxXG2HnuUyw1QXzg==

stringToEncrypt: 10:00
key: dHViZXIkMjA=
inputByteArray: MTA6MDA=
IV: FDRYeExZze8=
Convert.ToBase64String(ms.ToArray()): WVOOknAikYs=

更新3:

这是最后一步的ActionScript代码：

    aes.encrypt(inputBA);

    return Base64.encodeByteArray(inputBA);

这是最后几步的C#/.NET代码：

        CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(key, IV), CryptoStreamMode.Write);
        cs.Write(inputByteArray, 0, inputByteArray.Length);
        cs.FlushFinalBlock();
        return Convert.ToBase64String(ms.ToArray());

Answer 1

首先更改这一行

inputBA.writeUTFBytes(decrKey);

至

key.writeUTFBytes(decrKey);

您可能需要一些像这样的函数才能在ByteArray中打印AS3。

public static function fromArray(array:ByteArray, colons:Boolean=false):String {
        var s:String = "";
        for (var i:uint=0;i<array.length;i++) {
                s+=("0"+array[i].toString(16)).substr(-2,2);
                if (colons) {
                        if (i<array.length-1) s+=":";
                }
        }
        return s;
}

资料来源：AS3 ByteArray to Hex representation