加密文件并将其发送到

Question

我需要使用AES 192对文件进行加密，然后通过套接字将其发送到客户端。我使用以下代码对文件进行加密：

string outputFile = "crypted";

            //Confidentiality
            RijndaelManaged AES192Confidentiality = new RijndaelManaged();
            AES192Confidentiality.KeySize = 192;
            AES192Confidentiality.BlockSize = 192;
            AES192Confidentiality.IV = ConfIV;
            AES192Confidentiality.Key = ConfKey;
            AES192Confidentiality.Mode = CipherMode.CBC;
            FileStream inputFileStream = new FileStream(par.GetFilePath(), FileMode.Open, FileAccess.Read);
            FileStream outputFileStream = new FileStream(outputFile, FileMode.Create, FileAccess.Write);
            byte[] inputFileData = new byte[(int)inputFileStream.Length];
            inputFileStream.Read(inputFileData, 0, (int)inputFileStream.Length);
            CryptoStream encryptStream = new CryptoStream(outputFileStream, AES192Confidentiality.CreateEncryptor(), CryptoStreamMode.Write);
            encryptStream.Write(inputFileData, 0, (int)inputFileStream.Length);
            encryptStream.FlushFinalBlock();
            encryptStream.Close();

我想知道我现在如何通过套接字发送这个加密的临时文件，以便接收者可以重建文件并解密它。有人能给我一些指导或指导吗？提前感谢所有人

Answer 1

您可以为套接字创建NetworkStream实例，然后调用encryptStream.CopyTo(myNetworkStream);

Answer 2

考虑使用TcpClient连接到服务器并发送数据。我不打算写一个完整的答案，因为你已经指出这是学校作业，但看看例子是如何写数据的：

// Get a client stream for reading and writing. 
NetworkStream networkStream = client.GetStream();

// Send the message to the connected TcpServer. 
networkStream.Write(data, 0, data.Length);

您可能希望避免稍微调整它，以使用CopyTo将数据直接从密码流写入网络流。

这里假设你不需要解决secure key exchange的问题。