ICryptoTransform.TransformFinalBlock与ICryptoTransform.TransformBlock [英] ICryptoTransform.TransformFinalBlock vs ICryptoTransform.TransformBlock

问题描述

我正在学习.net中的密码学，为什么方法1起作用而2引发了参数异常。
有关完整代码，请参见对称算法异常

I am Learning cryptography in .net, why method 1 works while 2 fired argument exception. See Symmetric Algorithm exception for a complete code

1- ICryptoTransform.TransformFinalBlock

1- ICryptoTransform.TransformFinalBlock

2- ICryptoTransform.TransformBlock

2- ICryptoTransform.TransformBlock

谢谢

推荐答案

您应该使用 CryptoStream ，它将自动调用正确的 ICryptoTransform 方法。

You should be using a CryptoStream, which will automatically call the correct ICryptoTransform methods.

例如：

var stream = new MemoryStream();
using (var transform = symAlgo.CreateEncryptor())
using (var cryptoStream = new CryptoStream(stream, transform, CryptoStreamMode.Write))
using (var writer = new StreamWriter(cryptoStream))
    writer.Write(someString);

byte[] cipherBytes = stream.ToArray();

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