1  /// <summary>
 2     /// Rijndael算法
 3     /// </summary>
 4     public class RijndaelCrypto : ICrypto
 5     {
 6         /// <summary>
 7         /// Key值
 8         /// </summary>
 9         private byte[] _key;
10         /// <summary>
11         /// IV向量
12         /// </summary>
13         private byte[] _iv = new byte[] { 107, 22, 226, 145, 208, 243, 46, 41 };
14         public RijndaelCrypto(byte[] key)
15         {
16             this._key = key;
17         }
18         /// <summary>
19         /// 加密
20         /// </summary>
21         /// <param name="bytes"></param>
22         /// <returns></returns>
23         public byte[] Encrypt(byte[] bytes)
24         {
25             RijndaelManaged rm = this.GetProvider();
26             ICryptoTransform it = rm.CreateEncryptor(rm.Key, rm.IV);
27             return it.TransformFinalBlock(bytes, 0, bytes.Length);
28         }
29         /// <summary>
30         /// 解密
31         /// </summary>
32         /// <param name="bytes"></param>
33         /// <returns></returns>
34         public byte[] Decrypt(byte[] bytes)
35         {
36             RijndaelManaged rm = this.GetProvider();
37             ICryptoTransform it = rm.CreateDecryptor(rm.Key, rm.IV);
38             return it.TransformFinalBlock(bytes, 0, bytes.Length);
39         }
40         private RijndaelManaged GetProvider()
41         {
42             RijndaelManaged rm = new RijndaelManaged();
43             rm.Key = this._key;
44             rm.IV = this._iv;
45             return rm;
46         }
47     }