c# - 使用 AES/Hex 将 ColdFusion 加密转换为 C#

Question

与本文主题相关: Converting Coldfusion encryption code to C#

您将如何为此进行转换:

<!--- valueToEncrypt = "34245678", key = "TJhKuhjyx/87giutBNHh9t==" --->
<cfset output = Encrypt( valueToEncrypt, key, "AES", "Hex")>

这是我在 C# 中尝试的:

byte[] plainText = Encoding.UTF8.GetBytes(TextToEncrypt);
byte[] key = Convert.FromBase64String(encryptionKey);
RijndaelManaged algorithm = new RijndaelManaged();
algorithm.Mode = CipherMode.ECB;
algorithm.Padding = PaddingMode.PKCS7;
algorithm.BlockSize = 128;
algorithm.KeySize = 128;
algorithm.Key = key;
string result;
using (ICryptoTransform encryptor = algorithm.CreateEncryptor())
{
    using (MemoryStream memoryStream = new MemoryStream())
    {
        using (CryptoStream cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write))
        {
            cryptoStream.Write(plainText, 0, plainText.Length);
            cryptoStream.FlushFinalBlock();
            result = Convert.ToBase64String(memoryStream.ToArray());
        }
    }
}

return result;

ColdFusion 结果:

04197FAA3C9C030660A6377E44F77C4E

C# 结果:

BBl/qjycAwZgpjd+RPd8Tg==

Answer 1

实际上结果是一样的。它们只是编码不同。两者都加密输入并生成二进制文件，然后对结果进行编码以便于存储和传输。 ColdFusion 代码只是选择将这些字节编码为“十六进制”，而 C# 代码使用“base64”。虽然结果可能看起来不同，但它们仍然表示相同的值。例如，请注意您是否将 C# 结果 (base64) 解码为二进制和 re-encode it as hex , 它匹配CF结果？

C# (将结果从 base64 转换为十六进制)

byte[] decoded = Convert.FromBase64String("BBl/qjycAwZgpjd+RPd8Tg==");
string resultAsHex = (BitConverter.ToString(decoded).Replace("-", string.Empty));

结果:

04197FAA3C9C030660A6377E44F77C4E 

话虽如此，如果您需要在两边生成相同的编码 字符串，可以:

一个。将 C# 代码更改为 encode the result as hex , 而不是 base64

    result =  BitConverter.ToString(memoryStream.ToArray()).Replace("-", string.Empty);

或

B.更改 CF 代码以使用 base64 编码:

    <cfset output = Encrypt( valueToEncrypt, key, "AES", "Base64")>