使用.net自带的RSA，需要引用System.Security.Cryptography

测试环境.net4.6

static void Main(string[] args){    var RSA = new RSACryptoServiceProvider();    var publickKey = RSA.ToXmlString(false);    var privateKey = RSA.ToXmlString(true);    var publicKeyRSA = new RSACryptoServiceProvider();    publicKeyRSA.FromXmlString(publickKey);    var privateKeyRSA = new RSACryptoServiceProvider();    privateKeyRSA.FromXmlString(privateKey);    var encryptBytes = publicKeyRSA.Encrypt(Encoding.Default.GetBytes("hellow world"), false);    string tmp = "";    for (int i = 0; i < encryptBytes.Length; i++)    {        tmp += encryptBytes[i] + ",";    }    tmp = tmp.TrimEnd(',');    Console.WriteLine(tmp);    var sign = privateKeyRSA.SignData(encryptBytes, "SHA1");    if (publicKeyRSA.VerifyData(encryptBytes, "SHA1", sign))    {        var decryptBytes = privateKeyRSA.Decrypt(encryptBytes, false);        var str = Encoding.Default.GetString(decryptBytes);        Console.WriteLine(str);    }    else    {        Console.WriteLine("Sign Error!");    }    Console.Read();}

 

 

运行打印：

104,205,171,68,41,206,37,127,112,195,150,236,162,29,144,253,78,197,173,65,75,240,223,35,186,212,218,50,24,60,144,133,174,97,74,90,61,97,97,54,214,231,30,191,33,18,102,103,230,79,231,100,171,129,0,165,33,147,22,69,83,67,105,212,92,118,112,165,200,11,91,241,56,161,218,11,62,179,83,167,141,27,2,188,169,102,222,133,37,191,41,48,246,90,238,164,105,54,238,126,6,140,74,197,208,164,197,209,98,68,243,160,165,66,64,223,234,175,160,5,24,198,169,206,110,100,235,6hellow world