C#实现RSA加密解密源码

RSA加密解密源码：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Security.Cryptography;namespace MyRSA{public class MyRSA{private static string publicKey =     "<RSAKeyValue><Modulus>6CdsXgYOyya/yQH" +    "TO96dB3gEurM2UQDDVGrZoe6RcAVTxAqDDf5L" +     "wPycZwtNOx3Cfy44/D5Mj86koPew5soFIz9sx" +    "PAHRF5hcqJoG+q+UfUYTHYCsMH2cnqGVtnQiE" +    "/PMRMmY0RwEfMIo+TDpq3QyO03MaEsDGf13sP" +    "w9YRXiac=</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>";private static string privateKey =     "<RSAKeyValue><Modulus>6CdsXgYOyya/yQH" +    "TO96dB3gEurM2UQDDVGrZoe6RcAVTxAqDDf5L" +    "wPycZwtNOx3Cfy44/D5Mj86koPew5soFIz9sx" +    "PAHRF5hcqJoG+q+UfUYTHYCsMH2cnqGVtnQiE" +    "/PMRMmY0RwEfMIo+TDpq3QyO03MaEsDGf13sP" +    "w9YRXiac=</Modulus><Exponent>AQAB</Exponent>" +    "<P>/aoce2r6tonjzt1IQI6FM4ysR40j/gKvt4d" +    "L411pUop1Zg61KvCm990M4uN6K8R/DUvAQdrRd" +    "VgzvvAxXD7ESw==</P><Q>6kqclrEunX/fmOle" +    "VTxG4oEpXY4IJumXkLpylNR3vhlXf6ZF9obEpG" +    "lq0N7sX2HBxa7T2a0WznOAb0si8FuelQ==</Q>" +    "<DP>3XEvxB40GD5v/Rr4BENmzQW1MBFqpki6FU" +    "GrYiUd2My+iAW26nGDkUYMBdYHxUWYlIbYo6Te" +    "zc3d/oW40YqJ2Q==</DP><DQ>LK0XmQCmY/ArY" +    "gw2Kci5t51rluRrl4f5l+aFzO2K+9v3PGcndjA" +    "StUtIzBWGO1X3zktdKGgCLlIGDrLkMbM21Q==</DQ><InverseQ>" +    "GqC4Wwsk2fdvJ9dmgYlej8mTDBWg0Wm6aqb5kjn" +    "cWK6WUa6CfD+XxfewIIq26+4Etm2A8IAtRdwPl4" +    "aPjSfWdA==</InverseQ><D>a1qfsDMY8DSxB2D" +    "Cr7LX5rZHaZaqDXdO3GC01z8dHjI4dDVwOS5ZFZ" +    "s7MCN3yViPsoRLccnVWcLzOkSQF4lgKfTq3IH40" +    "H5N4gg41as9GbD0g9FC3n5IT4VlVxn9ZdW+WQry" +    "oHdbiIAiNpFKxL/DIEERur4sE1Jt9VdZsH24CJE=</D></RSAKeyValue>";static public string Decrypt(string base64code){    try    {        //Create a UnicodeEncoder to convert between byte array and string.        UnicodeEncoding ByteConverter = new UnicodeEncoding();        //Create a new instance of RSACryptoServiceProvider to generate        //public and private key data.        RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();        RSA.FromXmlString(privateKey);        byte[] encryptedData;        byte[] decryptedData;        encryptedData = Convert.FromBase64String(base64code);        //Pass the data to DECRYPT, the private key information         //(using RSACryptoServiceProvider.ExportParameters(true),        //and a boolean flag specifying no OAEP padding.        decryptedData = RSADecrypt(            encryptedData, RSA.ExportParameters(true), false);        //Display the decrypted plaintext to the console.         return ByteConverter.GetString(decryptedData);    }    catch (Exception exc)    {        //Exceptions.LogException(exc);        Console.WriteLine(exc.Message);        return "";    }}static public string Encrypt(string toEncryptString){    try    {        //Create a UnicodeEncoder to convert between byte array and string.        UnicodeEncoding ByteConverter = new UnicodeEncoding();        //Create byte arrays to hold original, encrypted, and decrypted data.        byte[] dataToEncrypt =             ByteConverter.GetBytes(toEncryptString);        byte[] encryptedData;        byte[] decryptedData;        //Create a new instance of RSACryptoServiceProvider to generate        //public and private key data.        RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();        RSA.FromXmlString(privateKey);        //Pass the data to ENCRYPT, the public key information         //(using RSACryptoServiceProvider.ExportParameters(false),        //and a boolean flag specifying no OAEP padding.        encryptedData = RSAEncrypt(            dataToEncrypt, RSA.ExportParameters(false), false);        string base64code = Convert.ToBase64String(encryptedData);        return base64code;    }    catch (Exception exc)    {        //Catch this exception in case the encryption did        //not succeed.        //Exceptions.LogException(exc);        Console.WriteLine(exc.Message);        return "";    }}static private byte[] RSAEncrypt(    byte[] DataToEncrypt,     RSAParameters RSAKeyInfo,     bool DoOAEPPadding){    try    {        //Create a new instance of RSACryptoServiceProvider.        RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();        //Import the RSA Key information. This only needs        //toinclude the public key information.        RSA.ImportParameters(RSAKeyInfo);        //Encrypt the passed byte array and specify OAEP padding.          //OAEP padding is only available on Microsoft Windows XP or        //later.          return RSA.Encrypt(DataToEncrypt, DoOAEPPadding);    }    //Catch and display a CryptographicException      //to the console.    catch (CryptographicException e)    {        //Exceptions.LogException(e);        Console.WriteLine(e.Message);        return null;    }}static private byte[] RSADecrypt(    byte[] DataToDecrypt,    RSAParameters RSAKeyInfo,    bool DoOAEPPadding){    try    {        //Create a new instance of RSACryptoServiceProvider.        RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();        //Import the RSA Key information. This needs        //to include the private key information.        RSA.ImportParameters(RSAKeyInfo);        //Decrypt the passed byte array and specify OAEP padding.          //OAEP padding is only available on Microsoft Windows XP or        //later.          return RSA.Decrypt(DataToDecrypt, DoOAEPPadding);    }    //Catch and display a CryptographicException      //to the console.    catch (CryptographicException e)    {        //Exceptions.LogException(e);        Console.WriteLine(e.Message);        return null;    }}}}

 测试代码：

        static void Main(string[] args)
        {
            string encodeString = MyRSA.Encrypt("1234567");
            Console.WriteLine(encodeString);


            string decode = MyRSA.Decrypt(encodeString);
            Console.WriteLine(decode);

            Console.ReadLine();
        }