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我有一个加密 - 解密方案，如下所示。

//[明文ID字符串作为输入]--[(ASCII GetByte)+编码]--[作为字节数组加密]--[数据库列在VarBinary中]--[将字节[]作为VarBinary参数传递给SP比较]

//[ID在数据库中存储为VarBinary]--[读取为字节数组]--[（解密为字节数组）+编码+（ASCII获取字符串）]-在UI中显示为字符串

我的问题是在解密场景中。解密后我得到一个字节数组。之后我正在进行编码（IBM037）。这是正确的吗？上面显示的流程有问题吗？

private static byte[] GetEncryptedID(string id)
{
    Interface_Request input = new Interface_Request();
    input.RequestText = Encodeto64(id);
    input.RequestType = Encryption;

    ProgramInterface inputRequest = new ProgramInterface();
    inputRequest.Test_Trial_Request = input;

    using (KTestService operation = new KTestService())
    {
        return ((operation.KTrialOperation(inputRequest)).Test_Trial_Response.ResponseText);
    }
}


private static string GetDecryptedID(byte[] id)
{
    Interface_Request input = new Interface_Request();
    input.RequestText = id;
    input.RequestType = Decryption;

    ProgramInterface request = new ProgramInterface();
    request.Test_Trial_Request = input;

    using (KTestService operationD = new KTestService())
    {
            ProgramInterface1 response = operationD.KI014Operation(request);
            byte[] decryptedValue = response.ICSF_AES_Response.ResponseText;
            Encoding sourceByteFormat = Encoding.GetEncoding("IBM037");
            Encoding destinationByteFormat = Encoding.ASCII;

            //Convert from one byte format to other (IBM to ASCII)
            byte[] ibmEncodedBytes = Encoding.Convert(sourceByteFormat, destinationByteFormat,decryptedValue);
            return System.Text.ASCIIEncoding.ASCII.GetString(ibmEncodedBytes);

        }
    }

    private static byte[] EncodeTo64(string toEncode)
    {
        byte[] dataInBytes = System.Text.ASCIIEncoding.ASCII.GetBytes(toEncode);
        Encoding destinationByteFormat = Encoding.GetEncoding("IBM037");
        Encoding sourceByteFormat = Encoding.ASCII;

        //Convert from one byte format to other (ASCII to IBM)
        byte[] asciiBytes = Encoding.Convert(sourceByteFormat, destinationByteFormat, dataInBytes);
        return asciiBytes;
    }
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1 回答 1

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我找到了答案——在解密过程中，解密后我将 IBM037 字节转换为 ASCII 字节。这就是出现编码的原因。我也更新了问题中的代码（带有更多解释变量）

于 2012-09-06T07:27:28.817 回答