复制代码 代码如下:

产生私钥和公钥

System.Security.Cryptography.RSACryptoServiceProvider myrsa = new RSACryptoServiceProvider();

//得到私钥主要保存了RSAParameters中的8各参数

privateKey = myrsa.ToXmlString(true);

//得到公钥保存了RSAParameters中2个参数

publicKey = myrsa.ToXmlString(false);

RAS实现加密

System.Security.Cryptography.RSACryptoServiceProvider myrsa = new RSACryptoServiceProvider();

//得到公钥

myrsa.FromXmlString(publicKey);

//把你要加密的内容转换成byte[]

byte[] PlainTextBArray = (new UnicodeEncoding()).GetBytes("这里是你要加密的内容");

//使用.NET中的Encrypt方法加密

byte[] CypherTextBArray = myrsa.Encrypt(PlainTextBArray, false);

//最后吧加密后的byte[]转换成Base64String，这里就是加密后的内容了

Result = Convert.ToBase64String(CypherTextBArray)

RAS实现解密

System.Security.Cryptography.RSACryptoServiceProvider myrsa = new RSACryptoServiceProvider();

//得到私钥

myrsa.FromXmlString(xmlPrivateKey);

//把原来加密后的String转换成byte[]

byte[] PlainTextBArray = Convert.FromBase64String("刚才加密后的string");

//使用.NET中的Decrypt方法解密

byte[] DypherTextBArray = myrsa.Decrypt(PlainTextBArray, false);

//转换解密后的byte[]，这就得到了我们原来的加密前的内容了

Result = (new UnicodeEncoding()).GetString(DypherTextBArray);

byte[] messagebytes = Encoding.UTF8.GetBytes("luo罗");

RSACryptoServiceProvider oRSA = new RSACryptoServiceProvider();

string privatekey = oRSA.ToXmlString(true);

string publickey = oRSA.ToXmlString(false);

//私钥签名

RSACryptoServiceProvider oRSA3 = new RSACryptoServiceProvider();

oRSA3.FromXmlString(privatekey);

byte[] AOutput = oRSA3.SignData(messagebytes, "SHA1");

//公钥验证

RSACryptoServiceProvider oRSA4 = new RSACryptoServiceProvider();

oRSA4.FromXmlString(publickey);

bool bVerify = oRSA4.VerifyData(messagebytes, "SHA1", AOutput);