加载中…
个人资料
微博
  • 博客等级：
  • 博客积分：
  • 博客访问：
  • 关注人气：
  • 获赠金笔：0支
  • 赠出金笔：0支
  • 荣誉徽章：
正文 字体大小：大 中 小

基于RSA的数字签名和验证C#源码

(2012-02-28 18:23:24)
标签：

杂谈

 分类： C#

http://blog.163.com/Images/OutliningIndicators/ExpandedBlockStart.gif
http://blog.163.com/Images/OutliningIndicators/None.gif
http://blog.163.com/Images/OutliningIndicators/ExpandedBlockStart.gif
http://blog.163.com/Images/OutliningIndicators/None.gif
http://blog.163.com/Images/OutliningIndicators/None.gifusing System;
http://blog.163.com/Images/OutliningIndicators/None.gifusing System.Security.Cryptography;
http://blog.163.com/Images/OutliningIndicators/None.gifusing System.Text;
http://blog.163.com/Images/OutliningIndicators/None.gif
http://blog.163.com/Images/OutliningIndicators/None.gifclass RSACSPSample
http://blog.163.com/Images/OutliningIndicators/ExpandedBlockStart.gif{
http://blog.163.com/Images/OutliningIndicators/InBlock.gif    static void Main()
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif    {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        try
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif        {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            string str_DataToSign = @"Data to Sign!Data to Sign!Data to Sign!";
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine("原文：" + str_DataToSign);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine("长度：" + str_DataToSign.Length.ToString());
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine();
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            RSACryptoServiceProvider RSAalg = new RSACryptoServiceProvider();
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            string str_Private_Key = Convert.ToBase64String( RSAalg.ExportCspBlob(true) );
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            string str_Public_Key = Convert.ToBase64String( RSAalg.ExportCspBlob(false) );
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine("公钥：" + str_Public_Key);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine();
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine("私钥：" + str_Private_Key);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine();
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            string str_SignedData = HashAndSign(str_DataToSign, str_Private_Key);// Hash and sign the data.
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine("签名数据：" + str_SignedData);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine();
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            if (VerifySignedHash(str_DataToSign, str_SignedData, str_Public_Key))
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif            {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif                Console.WriteLine("验证签名OK.");
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif            }
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            else
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif            {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif                Console.WriteLine("签名不匹配!");
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif            }
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine();
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif        }
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        catch (ArgumentNullException)
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif        {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine("The data was not signed or verified");
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif        }
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif    }
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/InBlock.gif    //对数据签名
http://blog.163.com/Images/OutliningIndicators/InBlock.gif    public static string HashAndSign(string str_DataToSign, string str_Private_Key)
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif    {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        ASCIIEncoding ByteConverter = new ASCIIEncoding();
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        byte[] DataToSign = ByteConverter.GetBytes(str_DataToSign);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        try
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif        {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            RSACryptoServiceProvider RSAalg = new RSACryptoServiceProvider();
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            RSAalg.ImportCspBlob( Convert.FromBase64String(str_Private_Key) );
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            byte[] signedData = RSAalg.SignData(DataToSign, new SHA1CryptoServiceProvider());
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            string str_SignedData = Convert.ToBase64String(signedData);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            return str_SignedData;
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif        }
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        catch (CryptographicException e)
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif        {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine(e.Message);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            return null;
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif        }
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif    }
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/InBlock.gif    //验证签名
http://blog.163.com/Images/OutliningIndicators/InBlock.gif    public static bool VerifySignedHash(string str_DataToVerify, string str_SignedData, string str_Public_Key)
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif    {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        byte[] SignedData = Convert.FromBase64String(str_SignedData);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        ASCIIEncoding ByteConverter = new ASCIIEncoding();
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        byte[] DataToVerify = ByteConverter.GetBytes(str_DataToVerify);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        try
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif        {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            RSACryptoServiceProvider RSAalg = new RSACryptoServiceProvider();
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            RSAalg.ImportCspBlob( Convert.FromBase64String(str_Public_Key) );
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            return RSAalg.VerifyData(DataToVerify, new SHA1CryptoServiceProvider(), SignedData);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif        }
http://blog.163.com/Images/OutliningIndicators/InBlock.gif        catch (CryptographicException e)
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif        {
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            Console.WriteLine(e.Message);
http://blog.163.com/Images/OutliningIndicators/InBlock.gif
http://blog.163.com/Images/OutliningIndicators/InBlock.gif            return false;
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif        }
http://blog.163.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif    }
http://blog.163.com/Images/OutliningIndicators/ExpandedBlockEnd.gif}

喜欢

0

阅读┊ 收藏 ┊ 喜欢▼ ┊打印┊举报/Report
  

新浪BLOG意见反馈留言板　欢迎批评指正

新浪简介 | About Sina | 广告服务 | 联系我们 | 招聘信息 | 网站律师 | SINA English | 产品答疑

Copyright © 1996 - 2022 SINA Corporation, All Rights Reserved

新浪公司 版权所有