第C#實現(xiàn)加密的幾種方法介紹byte[]array=System.Text.Encoding.ASCII.GetBytes(rpwd);

byte[]byteArray=newbyte[array.Length];

for(inti=0;iarray.Length;i++)

intasciicode=(int)(array[i]);

asciicode=asciicode+1;

byteArray[i]=(byte)asciicode;

System.Text.ASCIIEncodingasciiEncoding=newSystem.Text.ASCIIEncoding();

stringstrCharacter=asciiEncoding.GetString(byteArray);

Ret=strCharacter;

returnRet;

}

2.MD5加密

//MD5加密

privatestaticstringMD5PWd(stringrpwd)

stringRet;

MD5md5=newMD5CryptoServiceProvider();

byte[]palindata=Encoding.Default.GetBytes(rpwd);//將要加密的字符串轉(zhuǎn)換為字節(jié)數(shù)組

byte[]encryptdata=md5.ComputeHash(palindata);//將字符串加密后也轉(zhuǎn)換為字符數(shù)組

Ret=Convert.ToBase64String(encryptdata);

returnRet;

}

3.RSA加密

//RSA加密

privatestaticstringRSAPWD1(stringmyKeyContainerName)

stringret="";

CspParameterscp=newCspParameters();

cp.KeyContainerName=myKeyContainerName;

RSACryptoServiceProviderrsa=newRSACryptoServiceProvider(cp);

ret=rsa.ToXmlString(true);

Console.WriteLine("Keyis:\n"+rsa.ToXmlString(true));

returnret;

}

4.DES加密

//DES加密

privatestaticstringDESPWD(stringciphertext)

stringdesPWD="";

byte[]buffer;

DESCryptoServiceProviderDesCSP=newDESCryptoServiceProvider();

MemoryStreamms=newMemoryStream();//先創(chuàng)建一個內(nèi)存流

CryptoStreamcryStream=newCryptoStream(ms,DesCSP.CreateEncryptor(),CryptoStreamMode.Write);//將內(nèi)存流連接到加密轉(zhuǎn)換流

StreamWritersw=newStreamWriter(cryStream);

sw.WriteLine(ciphertext);//將要加密的字符串寫入加密轉(zhuǎn)換流

sw.Close();

cryStream.Close();

buffer=ms.ToArray();//將加密后的流轉(zhuǎn)換為字節(jié)數(shù)組

desPWD=Convert.ToBase64String(buffer);/