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  • DES加密解密类

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Security.Cryptography;
    using System.Globalization;
    
    namespace PubClass
    {
       public 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);
                return BitConverter.ToString(result);
            }
            // 解密字符串  
    
            public string DecryptString(string sInputString, string sKey)
            {
    
                string[] sInput = sInputString.Split("-".ToCharArray());
                byte[] data = new byte[sInput.Length];
                for (int i = 0; i < sInput.Length; i++)
                {
    
                    data[i] = byte.Parse(sInput[i], NumberStyles.HexNumber);
                }
                DESCryptoServiceProvider DES = new DESCryptoServiceProvider();
                DES.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
                DES.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
                ICryptoTransform desencrypt = DES.CreateDecryptor();
                byte[] result = desencrypt.TransformFinalBlock(data, 0, data.Length);
                return Encoding.UTF8.GetString(result);
            }
        }
    }
    
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  • 原文地址:https://www.cnblogs.com/goto/p/3443323.html
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