encrypt admin password

Try this URL................Simple encrypting and decrypting data in C#[^]

You can use System.cryptography namesapce and use any algorightm to encrypt your password.
or you can do it using SQL too.
//Using SQL
while insertaion encrypt password text with the help of ENCRYPTBYPASSPHRASE [^] and decrypt with DECRYPTBYPASSPHRASE[^]
it uses TRIPLE DES algorithm for encryption with a 128 bit key.