Aes加解密

遇到URL參數的加解密，出於安全性的考慮，通常在後臺進行參數的處理，Aes（高級加密標準）是比較常見的加解密方法，其流程以下：

 

 1 /// <summary>
 2     /// 加解密
 3     /// </summary>
 4     public class AesCode {
 5         #region 加解密
 6         /// <summary>  
 7         /// AES 解密  
 8         /// </summary>  
 9         /// <param name="toDecrypt"></param>  
10         /// <returns></returns>  
11         public static string AesDecrypt(string toDecrypt) {
12             byte[] keyArray = Encoding.UTF8.GetBytes("12345678901234567890123456789012");
13             byte[] toEncryptArray = Convert.FromBase64String(toDecrypt);
14 
15             RijndaelManaged rDel = new RijndaelManaged();
16             rDel.Key = keyArray;
17             rDel.Mode = CipherMode.ECB;
18             rDel.Padding = PaddingMode.PKCS7;
19 
20             ICryptoTransform cTransform = rDel.CreateDecryptor();
21             byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
22 
23             return Encoding.UTF8.GetString(resultArray);
24         }
25 
26         /// <summary>  
27         /// AES 加密  
28         /// </summary>  
29         /// <param name="toEncrypt"></param>  
30         /// <returns></returns>  
31         public static string AesEncrypt(string toEncrypt) {
32             byte[] keyArray = Encoding.UTF8.GetBytes("12345678901234567890123456789012");
33             byte[] toEncryptArray = Encoding.UTF8.GetBytes(toEncrypt);
34 
35             RijndaelManaged rDel = new RijndaelManaged();
36             rDel.Key = keyArray;
37             rDel.Mode = CipherMode.ECB;
38             rDel.Padding = PaddingMode.PKCS7;
39 
40             ICryptoTransform cTransform = rDel.CreateEncryptor();
41             byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
42 
43             return Convert.ToBase64String(resultArray, 0, resultArray.Length);
44         }
45         #endregion
46     }

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