全面修改Id为Guid类型，为2.0版做准备

Infrastructure/Encryption.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Security.Cryptography;
+using System.Text;
+
+namespace Infrastructure
+{
+    public class Encryption
+    {
+        private static string encryptKey = "4h!@w$rng,i#$@x1%)5^3(7*5P31/Ee0";
+
+        //默认密钥向量
+        private static byte[] Keys = { 0x41, 0x72, 0x65, 0x79, 0x6F, 0x75, 0x6D, 0x79, 0x53, 0x6E, 0x6F, 0x77, 0x6D, 0x61, 0x6E, 0x3F };
+        /// <summary>
+        /// 加密
+        /// </summary>
+        /// <param name="encryptString"></param>
+        /// <returns></returns>
+        public static string Encrypt(string encryptString)
+        {
+            if (string.IsNullOrEmpty(encryptString))
+                return string.Empty;
+            RijndaelManaged rijndaelProvider = new RijndaelManaged();
+            rijndaelProvider.Key = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 32));
+            rijndaelProvider.IV = Keys;
+            ICryptoTransform rijndaelEncrypt = rijndaelProvider.CreateEncryptor();
+
+            byte[] inputData = Encoding.UTF8.GetBytes(encryptString);
+            byte[] encryptedData = rijndaelEncrypt.TransformFinalBlock(inputData, 0, inputData.Length);
+
+            return Convert.ToBase64String(encryptedData);
+        }
+        /// <summary>
+        /// 解密
+        /// </summary>
+        /// <param name="decryptString"></param>
+        /// <returns></returns>
+        public static string Decrypt(string decryptString)
+        {
+            if (string.IsNullOrEmpty(decryptString))
+                return string.Empty;
+            try
+            {
+                RijndaelManaged rijndaelProvider = new RijndaelManaged();
+                rijndaelProvider.Key = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 32));
+                rijndaelProvider.IV = Keys;
+                ICryptoTransform rijndaelDecrypt = rijndaelProvider.CreateDecryptor();
+
+                byte[] inputData = Convert.FromBase64String(decryptString);
+                byte[] decryptedData = rijndaelDecrypt.TransformFinalBlock(inputData, 0, inputData.Length);
+
+                return Encoding.UTF8.GetString(decryptedData);
+            }
+            catch
+            {
+                return "";
+            }
+        }
+    }
+}