TripleDES加密在通用应用程序c# WP 8.1

本文关键字：WP 应用程序加密 TripleDES | 更新日期: 2023-09-27 18:03:52

public static string tripleDESEncryptor(string toEncrypt, string keyString)
{
    var crypt = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.TripleDesEcb);
    IBuffer buffer = CryptographicBuffer.ConvertStringToBinary(toEncrypt, BinaryStringEncoding.Utf8);
    IBuffer keyBuffer = CryptographicBuffer.ConvertStringToBinary(keyString, BinaryStringEncoding.Utf8);
    CryptographicKey key = crypt.CreateSymmetricKey(keyBuffer);            
    var sigBuffer = CryptographicEngine.Sign(key, buffer);  // throws exception here
    string signature = CryptographicBuffer.EncodeToBase64String(sigBuffer);
    return signature;
}

这抛出一个InvalidCastException，我似乎不知道为什么或我做错了什么。

keyString的长度为24。

谢谢你的帮助，我解决了-

public static string tripleDESEncryptor(string toEncrypt, string keyString)
{
   var crypt = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.TripleDesEcbPkcs7);
            IBuffer buffer = CryptographicBuffer.ConvertStringToBinary(toEncrypt, BinaryStringEncoding.Utf8);
            IBuffer keyBuffer = CryptographicBuffer.ConvertStringToBinary(keyString, BinaryStringEncoding.Utf8);
            CryptographicKey key = crypt.CreateSymmetricKey(keyBuffer);
            IBuffer signed = CryptographicEngine.Encrypt(key, buffer, null);
            string signature = CryptographicBuffer.EncodeToBase64String(signed);
            return signature;
}