zoukankan      html  css  js  c++  java
  • ASP.NET加密算法(MD5/DES)

    本文讲 ASP.NET的MD5和DES加密和解密算法
    #region MD5算法
            public string md5(string str, int code)
            {
                if (code == 16) //16位MD5加密(取32位加密的9~25字符) 
                {
                    return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower().Substring(8, 16);
                }
                if (code == 32) //32位加密 
                {
                    return System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower();
                }
                return "00000000000000000000000000000000";
            }
            #endregion

            #region DESEncrypt DES加密
            // <summary>
            /// 进行DES加密。
            /// </summary>
            /// <param name="pToEncrypt">要加密的字符串。</param>
            /// <param name="sKey">密钥,且必须为8位。</param>
            /// <returns>以Base64格式返回的加密字符串。</returns>
            public string DESEncrypt(string pToEncrypt, string sKey)
            {
                using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
                {
                    byte[] inputByteArray = Encoding.UTF8.GetBytes(pToEncrypt);
                    des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
                    des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
                    System.IO.MemoryStream ms = new System.IO.MemoryStream();
                    using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write))
                    {
                        cs.Write(inputByteArray, 0, inputByteArray.Length);
                        cs.FlushFinalBlock();
                        cs.Close();
                    }
                    string str = Convert.ToBase64String(ms.ToArray());
                    ms.Close();
                    return str;
                }
            }
            #endregion

            #region DESDecrypt DES解密
            /// <summary>
            /// 进行DES解密。
            /// </summary>
            /// <param name="pToDecrypt">要解密的以Base64</param>
            /// <param name="sKey">密钥,且必须为8位。</param>
            /// <returns>已解密的字符串。</returns>
            public string DESDecrypt(string pToDecrypt, string sKey)
            {
                byte[] inputByteArray = Convert.FromBase64String(pToDecrypt);
                using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
                {
                    des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
                    des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
                    System.IO.MemoryStream ms = new System.IO.MemoryStream();
                    using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write))
                    {
                        cs.Write(inputByteArray, 0, inputByteArray.Length);
                        cs.FlushFinalBlock();
                        cs.Close();
                    }
                    string str = Encoding.UTF8.GetString(ms.ToArray());
                    ms.Close();
                    return str;
                }
            }
            #endregion
  • 相关阅读:
    【数据相关】如何进行数据标注(1)
    【机器视觉硬件】机器视觉硬件学习笔记3——镜头
    【机器视觉硬件】工业相机的分类
    【机器视觉硬件】工业相机的主要参数
    【机器视觉硬件】工业相机的主要接口类型
    【机器视觉硬件】机器视觉硬件学习笔记2——工业相机
    【知识相关】机器学习之独热编码(One-Hot)详解(代码解释)
    【机器视觉硬件】硬件学习笔记1——光源
    学习笔记分享之汇编---3. 堆栈&标志寄存器
    学习笔记分享之汇编---1. 通用寄存器
  • 原文地址:https://www.cnblogs.com/hakuci/p/1118545.html
Copyright © 2011-2022 走看看