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 }
