Encryption and decryption of password in asp.net

 //For decryption of password

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1. private string Decrypt(string clearText)  
2.         {  
3.             string EncryptionKey = "ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789";  
4.             byte[] clearBytes = Encoding.Unicode.GetBytes(clearText);  
5.             using (Aes encryptor = Aes.Create())  
6.             {  
7.                 Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(EncryptionKey, new byte[] { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 });  
8.                 encryptor.Key = pdb.GetBytes(32);  
9.                 encryptor.IV = pdb.GetBytes(16);  
10.                 using (MemoryStream ms = new MemoryStream())  
11.                 {  
12.                     using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateEncryptor(), CryptoStreamMode.Write))  
13.                     {  
14.                         cs.Write(clearBytes, 0, clearBytes.Length);  
15.                         cs.Close();  
16.                     }  
17.                     clearText = Convert.ToBase64String(ms.ToArray());  
18.                 }  
19.             }  
20.             return clearText;  
21.         }  

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For encryption of password

1.  private string Encrypt(string clearText)  
2.         {  
3.             string EncryptionKey = "ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789";  
4.             byte[] clearBytes = Encoding.Unicode.GetBytes(clearText);  
5.             using (Aes encryptor = Aes.Create())  
6.             {  
7.                 Rfc2898DeriveBytes pdb = new Rfc2898DeriveBytes(EncryptionKey, new byte[] { 0x49, 0x76, 0x61, 0x6e, 0x20, 0x4d, 0x65, 0x64, 0x76, 0x65, 0x64, 0x65, 0x76 });  
8.                 encryptor.Key = pdb.GetBytes(32);  
9.                 encryptor.IV = pdb.GetBytes(16);  
10.                 using (MemoryStream ms = new MemoryStream())  
11.                 {  
12.                     using (CryptoStream cs = new CryptoStream(ms, encryptor.CreateEncryptor(), CryptoStreamMode.Write))  
13.                     {  
14.                         cs.Write(clearBytes, 0, clearBytes.Length);  
15.                         cs.Close();  
16.                     }  
17.                     clearText = Convert.ToBase64String(ms.ToArray());  
18.                 }  
19.             }  
20.             return clearText;  
21.         }