C# Java 加密解密

C# AES加密解密

 1         public static string Encrypt(string key, string clearText)
 2         {
 3             byte[] clearBytes = Encoding.Unicode.GetBytes(clearText);
 4             using (Aes encryptor = Aes.Create())
 5             {
 6                 Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(key, new byte[] { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64 });
 7                 encryptor.Key = pdb.GetBytes(32);
 8                 encryptor.IV = pdb.GetBytes(16);
 9                 using (MemoryStream ms = new MemoryStream())
10                 {
11                     using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateEncryptor(), CryptoStreamMode.Write))
12                     {
13                         cs.Write(clearBytes, 0, clearBytes.Length);
14                         cs.Close();
15                     }
16                     clearText = Convert.ToBase64String(ms.ToArray());
17                 }
18             }
19             return clearText;
20         }
21         public static string Decrypt(string key, string cipherText)
22         {
23             cipherText = cipherText.Replace(" ", "+");
24             byte[] cipherBytes = Convert.FromBase64String(cipherText);
25             using (Aes encryptor = Aes.Create())
26             {
27                 Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(key, new byte[] { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64 });
28                 encryptor.Key = pdb.GetBytes(32);
29                 encryptor.IV = pdb.GetBytes(16);
30                 using (MemoryStream ms = new MemoryStream())
31                 {
32                     using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateDecryptor(), CryptoStreamMode.Write))
33                     {
34                         cs.Write(cipherBytes, 0, cipherBytes.Length);
35                         cs.Close();
36                     }
37                     cipherText = Encoding.Unicode.GetString(ms.ToArray());
38                 }
39             }
40             return cipherText;
41         }

AES加密解密