//System.Security.Cryptography 命名空间提供加密服务,包括安全的数据编码和解码,以及许多其他操作,例如散列法、随机数字生成和消息身份验证。
using System;
using System.Text;
using System.Globalization;
using System.Security.Cryptography;
class DES
{
// 创建Key
public string GenerateKey()
{
DESCryptoServiceProvider desCrypto = (DESCryptoServiceProvider)DESCryptoServiceProvider.Create();
return ASCIIEncoding.ASCII.GetString(desCrypto.Key);
}
// 加密字符串
public string EncryptString(string sInputString, string sKey)
{
byte [] data = Encoding.UTF8.GetBytes(sInputString);
DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
ICryptoTransform desencrypt = DES.CreateEncryptor();
byte [] result = desencrypt.TransformFinalBlock(data, 0, data.Length);