/*------------------------------NBest 快速开发框架---------------------------- 创建时间:2019-01-24 15:34:10 作者:陈恩点 邮箱:dvmu@163.com 变更记录: 时间 变更作者 变更内容 2019-01-24 15:34:10 陈恩点 初次创建文件 ----------------------------------------------------------------------------*/ using System; using System.Security.Cryptography; using System.Text; namespace NBest.Code { /// <summary> /// DES加密、解密帮助类 /// </summary> public class DES { //private static string DESKey = "U2FsdGVkX1/Tu90uxPsrsachWe9raOHJ53IbKZ9K5LM="; // // 原始KEy private static string DESKey = "NBest_desencrypt_2016"; // U2FsdGVkX1/Tu90uxPsrsachWe9raOHJ53IbKZ9K5LM= #region ========加密======== /// <summary> /// 加密 /// </summary> /// <param name="Text"></param> /// <returns></returns> public static string Encrypt(string Text) { return Encrypt(Text, DESKey); } /// <summary> /// 加密数据 /// </summary> /// <param name="Text"></param> /// <param name="sKey"></param> /// <returns></returns> public static string Encrypt(string Text, string sKey) { DESCryptoServiceProvider des = new DESCryptoServiceProvider(); byte[] inputByteArray = Encoding.ASCII.GetBytes(Text); des.Key = Encoding.ASCII.GetBytes(Md5.Encrypt(sKey).Substring(0,8)); des.IV = Encoding.ASCII.GetBytes(Md5.Encrypt(sKey).Substring(0, 8)); des.Mode = CipherMode.ECB; des.Padding = PaddingMode.PKCS7; System.IO.MemoryStream ms = new System.IO.MemoryStream(); CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); cs.Close(); StringBuilder ret = new StringBuilder(); foreach (byte b in ms.ToArray()) { ret.AppendFormat("{0:X2}", b); } return ret.ToString(); } #endregion #region ========解密======== /// <summary> /// 解密 /// </summary> /// <param name="Text"></param> /// <returns></returns> public static string Decrypt(string Text) { if (!string.IsNullOrEmpty(Text)) { return Decrypt(Text, DESKey); } else { return ""; } } /// <summary> /// 解密数据 /// </summary> /// <param name="Text"></param> /// <param name="sKey"></param> /// <returns></returns> public static string Decrypt(string Text, string sKey) { DESCryptoServiceProvider des = new DESCryptoServiceProvider(); int len; len = Text.Length / 2; byte[] inputByteArray = new byte[len]; int x, i; for (x = 0; x < len; x++) { i = Convert.ToInt32(Text.Substring(x * 2, 2), 16); inputByteArray[x] = (byte)i; } des.Key = ASCIIEncoding.ASCII.GetBytes(Md5.Encrypt(sKey).Substring(0, 8)); des.IV = ASCIIEncoding.ASCII.GetBytes(Md5.Encrypt(sKey).Substring(0, 8)); System.IO.MemoryStream ms = new System.IO.MemoryStream(); des.Mode = CipherMode.ECB; des.Padding = PaddingMode.PKCS7; CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write); cs.Write(inputByteArray, 0, inputByteArray.Length); cs.FlushFinalBlock(); return Encoding.Default.GetString(ms.ToArray()); } #endregion } }
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