提交rbac

提交设置右键错位的bug

DH.RBAC/Utility/Other/DESHelper.cs

@@ -0,0 +1,108 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DH.RBAC.Utility.Other
+{
+    public static class DESHelper
+    {
+        #region DES加密解密
+
+        /// <summary>
+        /// 默认密钥。
+        /// </summary>
+        private const string DESENCRYPT_KEY = "hsdjxlzf";
+
+        /// <summary>
+        /// DES加密，使用自定义密钥。
+        /// </summary>
+        /// <param name="text">待加密的明文</param>
+        /// <param name="key">8位字符的密钥字符串</param>
+        /// <returns></returns>
+        public static string DESEncrypt(this string text, string key)
+        {
+            if (key.Length != 8)
+            {
+                key = DESENCRYPT_KEY;
+            }
+            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
+            byte[] inputByteArray = Encoding.GetEncoding("UTF-8").GetBytes(text);
+
+            byte[] a = ASCIIEncoding.ASCII.GetBytes(key);
+            des.Key = ASCIIEncoding.ASCII.GetBytes(key);
+            des.IV = ASCIIEncoding.ASCII.GetBytes(key);
+            MemoryStream ms = new MemoryStream();
+            CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
+
+            cs.Write(inputByteArray, 0, inputByteArray.Length);
+            cs.FlushFinalBlock();
+
+            StringBuilder ret = new StringBuilder();
+            foreach (byte b in ms.ToArray())
+            {
+                ret.AppendFormat("{0:X2}", b);//将第一个参数转换为十六进制数,长度为2,不足前面补0
+            }
+            return ret.ToString();
+        }
+
+        /// <summary>
+        /// DES解密，使用自定义密钥。
+        /// </summary>
+        /// <param name="cyphertext">待解密的秘文</param>
+        /// <param name="key">必须是8位字符的密钥字符串(不能有特殊字符)</param>
+        /// <returns></returns>
+        public static string DESDecrypt(this string cyphertext, string key)
+        {
+            if (key.Length != 8)
+            {
+                key = DESENCRYPT_KEY;
+            }
+            if (string.IsNullOrEmpty(cyphertext))
+                return string.Empty;
+            DESCryptoServiceProvider des = new DESCryptoServiceProvider();
+
+            byte[] inputByteArray = new byte[cyphertext.Length / 2];
+            for (int x = 0; x < cyphertext.Length / 2; x++)
+            {
+                int i = (Convert.ToInt32(cyphertext.Substring(x * 2, 2), 16));
+                inputByteArray[x] = (byte)i;
+            }
+
+            des.Key = ASCIIEncoding.ASCII.GetBytes(key);
+            des.IV = ASCIIEncoding.ASCII.GetBytes(key);
+            MemoryStream ms = new MemoryStream();
+            CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
+            cs.Write(inputByteArray, 0, inputByteArray.Length);
+            cs.FlushFinalBlock();
+
+            StringBuilder ret = new StringBuilder();
+
+            return System.Text.Encoding.GetEncoding("UTF-8").GetString(ms.ToArray());
+        }
+
+        /// <summary>
+        /// DES加密，使用默认密钥。
+        /// </summary>
+        /// <param name="text">待加密的明文</param>
+        /// <returns></returns>
+        public static string DESEncrypt(this string text)
+        {
+            return DESEncrypt(text, DESENCRYPT_KEY);
+        }
+
+        /// <summary>
+        /// DES解密，使用默认密钥。
+        /// </summary>
+        /// <param name="cyphertext">待解密的秘文</param>
+        /// <returns></returns>
+        public static string DESDecrypt(this string cyphertext)
+        {
+            return DESDecrypt(cyphertext, DESENCRYPT_KEY);
+        }
+        #endregion
+    }
+}