C# SHA1withRsa签名函数，加解密

支付宝验名验证函数可参考此代码。 SHA1withRsa的各种操作:加密解密，加签验签。 C#源码可编译。签名调用方法：SHA1WithRSA.sign(str, key, "UTF-8");

using System;

namespace RSA
{
    public class Program
    {
        static void Main（string[] arg）
        {

            /**RSA加密测试RSA中的密钥对通过SSL工具生成，生成命令如下：
             * 1 生成RSA私钥：
             * openssl genrsa -out rsa_private_key.pem 1024
             *2 生成RSA公钥
             * openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem
             *
             * 3 将RSA私钥转换成PKCS8格式
             * openssl pkcs8 -topk8 -inform PEM -in rsa_private_key.pem -outform PEM -nocrypt -out rsa_pub_pk8.pem
             *
             * 直接打开rsa_private_key.pem和rsa_pub_pk8.pem文件就可以获取密钥对内容，获取密钥对内容组成字符串时，注意将换行符删除
             * */

            string publickey = “MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDzOqfNunFxFtCZPlq7fO/jWwjqmTvAooVBB4y87BizSZ9dl/F7FpAxYc6MmX2TqivCvvORXgdlYdFWAhzXOnIUv9OGG///WPLe9TMs9kIwAZ/APUXauvC01oFLnYkzwPlAh0tQ1Au9arTE/OG1V1dKgf8BXHLPhKL4BmGBEUZBtQIDAQAB“;
            string privatekey = “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“;

            //加密字符串
            string data = “yibao“;

            Console.WriteLine（“加密前字符串内容：“ + data）;
            //加密
            string encrypteddata = SHA1WithRSA.encryptData（data publickey “UTF-8“）;
            Console.WriteLine（“加密后的字符串为：“ + encrypteddata）;
            Console.WriteLine（“解密后的字符串内容：“ + SHA1WithRSA.decryptData（encrypteddata privatekey “UTF-8“））;

            Console.WriteLine（“***********“）;

            //解密
            string endata = “LpnnvnfA72VnyjboX/OsCPO6FOFXeEnnsKkI7aAEQyVAPfCTfQ43ZYVZVqnADDPMW7VhBXJWyQMAGw2Fh9sS/XLHmO5XW94Yehci6JrJMynePgtIiDysjNA+UlgSTC/MlResNrBm/4MMSPvq0qLwScgpZDynhLsVZk+EQ6G8wgA=“;
            string datamw = SHA1WithRSA.decryptData（endata privatekey “UTF-8“）;
            Console.WriteLine（“静态加密后的字符串为：“ + endata）;
            Console.WriteLine（“解密后的字符串内容：“ + datamw）;

            //签名
            string signdata = “YB010000001441234567286038508081299“;
            Console.WriteLine（“签名前的字符串内容：“ + signdata）;
            string sign = SHA1WithRSA.sign（signdata privatekey “UTF-8“）;
            Console.WriteLine（“签名后的字符串：“ + sign）;

            //验签
            string ysigndata = “YB0100000014412

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2017-08-31 14:42  SHA1withRsa\
     目录           0  2017-08-31 14:42  SHA1withRsa\.vs\
     目录           0  2017-08-31 14:42  SHA1withRsa\.vs\rsa\
     目录           0  2017-08-31 14:42  SHA1withRsa\.vs\rsa\v15\
     文件       14336  2016-10-14 16:13  SHA1withRsa\.vs\rsa\v15\.suo
     目录           0  2017-08-31 14:50  SHA1withRsa\RSA\
     文件        3671  2017-08-31 14:50  SHA1withRsa\RSA\Program.cs
     目录           0  2017-08-31 14:41  SHA1withRsa\RSA\Properties\
     文件        1356  2016-10-13 12:00  SHA1withRsa\RSA\Properties\AssemblyInfo.cs
     文件        2469  2017-08-31 14:50  SHA1withRsa\RSA\RSA.csproj
     文件       20068  2017-08-31 14:50  SHA1withRsa\RSA\SHA1WithRSA.cs
     目录           0  2017-08-31 14:49  SHA1withRsa\RSA\bin\
     目录           0  2017-08-31 14:41  SHA1withRsa\RSA\bin\Debug\
     文件       13312  2017-08-31 14:50  SHA1withRsa\RSA\bin\Debug\RSA.exe
     文件       26112  2017-08-31 14:50  SHA1withRsa\RSA\bin\Debug\RSA.pdb
     文件       11600  2016-10-14 16:13  SHA1withRsa\RSA\bin\Debug\RSA.vshost.exe
     文件         490  2012-06-06 02:06  SHA1withRsa\RSA\bin\Debug\RSA.vshost.exe.manifest
     目录           0  2017-08-31 14:51  SHA1withRsa\RSA\bin\Release\
     目录           0  2017-08-31 14:41  SHA1withRsa\RSA\obj\
     目录           0  2017-08-31 14:41  SHA1withRsa\RSA\obj\x86\
     目录           0  2017-08-31 14:50  SHA1withRsa\RSA\obj\x86\Debug\
     文件          42  2017-08-31 14:49  SHA1withRsa\RSA\obj\x86\Debug\CoreCompileInputs.cache
     文件        6636  2017-08-31 14:49  SHA1withRsa\RSA\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     文件        1071  2017-08-31 14:50  SHA1withRsa\RSA\obj\x86\Debug\RSA.csproj.FileListAbsolute.txt
     文件        7052  2017-08-31 14:50  SHA1withRsa\RSA\obj\x86\Debug\RSA.csprojResolveAssemblyReference.cache
     文件       13312  2017-08-31 14:50  SHA1withRsa\RSA\obj\x86\Debug\RSA.exe
     文件       26112  2017-08-31 14:50  SHA1withRsa\RSA\obj\x86\Debug\RSA.pdb
     目录           0  2017-08-31 14:51  SHA1withRsa\RSA\obj\x86\Debug\TempPE\
     文件         851  2016-10-14 16:13  SHA1withRsa\rsa.sln
     文件       14336  2016-10-14 16:13  SHA1withRsa\rsa.suo