c# - RSA.Cryptography “不正确的参数”抛出 C#

问题描述

我正在尝试为我和我的朋友设置一个混乱的服务器，但我遇到了 RSA 解密的问题。

使用了正确的密钥
如果我启用 OAEP 填充，我会收到一个错误，简单地指出“OAEPpadding”
我对这个错误失去了理智，我在下面发布了脚本。
加密工作正常，只是解密有问题

请帮忙

using System;
using System.Net.Sockets;
using System.Net;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
using System.Security.Cryptography;
using System.Xml.Serialization;

namespace Server_WIN_
{
class Program
{
 public static XmlSerializer xs = new XmlSerializer(typeof(RSAParameters));
 public static TcpListener server = new TcpListener(IPAddress.Parse("192.168.1.93"), 78);
 public static TcpClient client = null;
 public static NetworkStream canwetalk = null;
 public static RSACryptoServiceProvider csp = new RSACryptoServiceProvider(4096);
 public static RSAParameters publickey;
 public static RSAParameters privatekey;
 static Program()
 {
     server.Start();
     csp.PersistKeyInCsp = false;
     publickey = csp.ExportParameters(false);
     privatekey = csp.ExportParameters(true);

     client = server.AcceptTcpClient();
     canwetalk = client.GetStream();
 }
         public static void Main(string[] args)
 {
         string strHostName = "";
         strHostName = Dns.GetHostName();
         // Then using host name, get the IP address list..
         IPHostEntry ipEntry = Dns.GetHostEntry(strHostName);
         IPAddress[] addr = ipEntry.AddressList;
     Random ran = new Random();
     HashAlgorithm sha = SHA256.Create();
     string msg = "";
     byte[] buffer = new byte[4096];
     msg = "test";
     msg = Encrypt(msg);
     msg = Decrypt(msg);
     Console.WriteLine(msg);
 }

 public static string PublicKeyString()
 {
     byte[] bytes = new byte[4096];
     var sw = new StringWriter();
     var xs = new XmlSerializer(typeof(RSAParameters));
     xs.Serialize(sw, publickey);
     return sw.ToString();
 }
 public static string PrivateKeyString()
 {
     byte[] bytes = new byte[4096];
     var sw = new StringWriter();
     var xs = new XmlSerializer(typeof(RSAParameters));
     xs.Serialize(sw, privatekey);
     return sw.ToString();
 }
 public static string Encrypt(string msg)
 {
     csp.ImportParameters(publickey);

     byte[] data = System.Text.Encoding.ASCII.GetBytes(msg);
     byte[] cipher = csp.Encrypt(data, false);
     return System.Text.Encoding.ASCII.GetString(cipher);
 }
 public static string Decrypt(string msg)
 {
     try
     { 
         csp.ImportParameters(privatekey);
         byte[] decrypted = csp.Decrypt(System.Text.Encoding.ASCII.GetBytes(msg), false);
         return System.Text.Encoding.Unicode.GetString(decrypted);
     }
     catch(CryptographicException e)
     {
         string p = e.ToString();
         Console.WriteLine(p);
     }
     return "";
 }
 public static void ExportPublicKey()
 {
     string msg = PublicKeyString();
     byte[] buffer = new byte[4096];
     byte[] msg1 = System.Text.Encoding.ASCII.GetBytes(msg);
     canwetalk.Write(msg1, 0, msg1.Length);

 }
 public static void ToStream(string msg, bool Encryption)
 {
     if (Encryption)
     {
         msg = Encrypt(msg);
         byte[] msgbytes = System.Text.Encoding.ASCII.GetBytes(msg);
         canwetalk.Write(msgbytes, 0, msgbytes.Length);
     }
     else
     {
         byte[] msgbytes = System.Text.Encoding.ASCII.GetBytes(msg);
         canwetalk.Write(msgbytes, 0, msgbytes.Length);
     }
 }
 public static string ReadStream()
 {
     byte[] buffer = new byte[4096];
     int i = canwetalk.Read(buffer,0,buffer.Length);
     return System.Text.Encoding.ASCII.GetString(buffer,0,i);
 }

}

标签： c#encryptionrsasos

c# - RSA.Cryptography “不正确的参数”抛出 C#

问题描述

解决方案

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