參考：https://blog.csdn.net/weixin_33830216/article/details/85982029

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Security.Cryptography;

namespace testApp
{
class Program
{
static void Main(string[] args)
{
var rsa = new RSACryptoServiceProvider();
//生成公鑰和私鑰
var privateKey = rsa.ToXmlString(true);
var publicKey = rsa.ToXmlString(false);

Console.WriteLine(privateKey);
Console.WriteLine(publicKey);

//公鑰加密數(shù)據(jù)
var rsa1 = new RSACryptoServiceProvider();
var msg = Encoding.UTF8.GetBytes("hello ssdfsdffdf...");
rsa1.FromXmlString(publicKey);
var outputData = rsa1.Encrypt(msg, false);
Console.WriteLine("加密后的數(shù)據(jù)："+ Encoding.UTF8.GetString(outputData));

//私鑰解密數(shù)據(jù)
var rsa2 = new RSACryptoServiceProvider();
rsa2.FromXmlString(privateKey);
var inputData = rsa2.Decrypt(outputData, false);
Console.WriteLine("解密后的數(shù)據(jù)：" + Encoding.UTF8.GetString(inputData));

//基于RSA的簽名與驗簽
var rsa4 = new RSACryptoServiceProvider();
rsa4.FromXmlString(publicKey);
var signData = rsa4.SignData(msg, "SHA1");

var rsa5 = new RSACryptoServiceProvider();
rsa5.FromXmlString(privateKey);
bool isOk = rsa5.VerifyData(msg, "SHA1", signData);
Console.WriteLine("驗簽結(jié)果："+ isOk);
Console.ReadKey();
}
}
}

轉(zhuǎn)載于:https://www.cnblogs.com/huangzelin/p/11138354.html

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