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数据加密之RijndaelManaged加密

2015-05-06 14:34  糯米粥  阅读(6416)  评论(0)    收藏  举报 
 1 #region RijndaelManaged加密
 2         /// <summary> 
 3         /// 加密数据 
 4         /// </summary> 
 5         /// <param name="Text">要加密的内容</param> 
 6         /// <param name="sKey">key，必须为32位</param> 
 7         /// <returns></returns> 
 8         public static string RiEncrypt(string Text, string sKey)
 9         {
10             byte[] keyArray = UTF8Encoding.UTF8.GetBytes(sKey);
11              //TripleDESCryptoServiceProvider
12             RijndaelManaged encryption = new RijndaelManaged();
13             encryption.Key = keyArray;
14 
15             encryption.Mode = CipherMode.ECB;
16 
17             encryption.Padding = PaddingMode.PKCS7;
18 
19             ICryptoTransform cTransform = encryption.CreateEncryptor();
20 
21             byte[] _EncryptArray = UTF8Encoding.UTF8.GetBytes(Text);
22 
23             byte[] resultArray = cTransform.TransformFinalBlock(_EncryptArray, 0, _EncryptArray.Length);
24 
25             return Convert.ToBase64String(resultArray, 0, resultArray.Length);
26 
27         }
28         #endregion
29         #region =======RijndaelManaged解密========
30         /// <summary> 
31         /// 解密数据 
32         /// </summary> 
33         /// <param name="Text"></param> 
34         /// <param name="sKey"></param> 
35         /// <returns></returns> 
36         public static string RiDecrypt(string Text, string sKey)
37         {
38             byte[] keyArray = UTF8Encoding.UTF8.GetBytes(sKey);
39 
40             RijndaelManaged decipher = new RijndaelManaged();
41 
42             decipher.Key = keyArray;
43 
44             decipher.Mode = CipherMode.ECB;
45 
46             decipher.Padding = PaddingMode.PKCS7;
47 
48             ICryptoTransform cTransform = decipher.CreateDecryptor();
49 
50             byte[] _EncryptArray = Convert.FromBase64String(Text);
51 
52             byte[] resultArray = cTransform.TransformFinalBlock(_EncryptArray, 0, _EncryptArray.Length);
53 
54             return UTF8Encoding.UTF8.GetString(resultArray);
55 
56         }
57         #endregion