C# 加密-TripleDES

作者:vkvi 来源:ITPOW(原创) 日期:2008-4-18

TripleDES 属对称加密,对称加密在加密和解密时都使用相同的密钥,速度快。

using System.Security.Cryptography;

byte[] plaintextBuffer = System.Text.Encoding.UTF8.GetBytes("明文");
 
//加密
TripleDESCryptoServiceProvider tripleDES = new TripleDESCryptoServiceProvider();
ICryptoTransform transform = tripleDES.CreateEncryptor();
byte[] cipherTextBuffer = transform.TransformFinalBlock(plaintextBuffer, 0, plaintextBuffer.Length);
lbl.Text = Convert.ToBase64String(cipherTextBuffer) + "<br />";
transform.Dispose();
 
//解密
TripleDESCryptoServiceProvider tripleDES2 = new TripleDESCryptoServiceProvider();
ICryptoTransform transform2 = tripleDES2.CreateDecryptor(tripleDES.Key, tripleDES.IV);
byte[] decryption = transform2.TransformFinalBlock(cipherTextBuffer, 0, cipherTextBuffer.Length);
lbl.Text += System.Text.Encoding.UTF8.GetString(decryption) + "<br />";
transform2.Dispose();

解密时,使用加密的 Key 和 IV。

相关文章