知识大全 字符串加密解密类
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using System;
using System Text;
using System Security Cryptography;
using System IO;
//默认密钥向量
private static byte[] Keys = x x x x x xAB xCD xEF ;
/// <summary>
/// DES加密字符串
/// </summary>
/// <param name= encryptString >待加密的字符串</param>
/// <param name= encryptKey >加密密钥 要求为 位</param>
/// <returns>加密成功返回加密后的字符串 失败返回源串</returns>
public static string EncryptDES(string encryptString string encryptKey)
try
byte[] rgbKey = Encoding UTF GetBytes(encryptKey Substring( ));
byte[] rgbIV = Keys;
byte[] inputByteArray = Encoding UTF GetBytes(encryptString);
DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider();
MemoryStream mStream = new MemoryStream();
CryptoStream cStream = new CryptoStream(mStream dCSP CreateEncryptor(rgbKey rgbIV) CryptoStreamMode Write);
cStream Write(inputByteArray inputByteArray Length);
cStream FlushFinalBlock();
return Convert ToBase String(mStream ToArray());
catch
return encryptString;
/// <summary>
/// DES解密字符串
/// </summary>
/// <param name= decryptString >待解密的字符串</param>
/// <param name= decryptKey >解密密钥 要求为 位 和加密密钥相同</param>
/// <returns>解密成功返回解密后的字符串 失败返源串</returns>
public static string DecryptDES(string decryptString string decryptKey)
try
byte[] rgbKey = Encoding UTF GetBytes(decryptKey);
byte[] rgbIV = Keys;
byte[] inputByteArray = Convert FromBase String(decryptString);
DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider();
MemoryStream mStream = new MemoryStream();
CryptoStream cStream = new CryptoStream(mStream DCSP CreateDecryptor(rgbKey rgbIV) CryptoStreamMode Write);
cStream Write(inputByteArray inputByteArray Length);
cStream FlushFinalBlock();
return Encoding UTF GetString(mStream ToArray());
catch
return decryptString;
使用方法为
//获取页面字符串
var strSource = Request Forms[ xxx ] value;
//加密
var strResult = EncryptDES(strSource );
//解密
cha138/Article/program/net/201311/13685相关参考