C# Password encrypting and decrypting

public static string HashPassword(string password)
{
    var provider = new SHA1CryptoServiceProvider();
    var encoding = new UnicodeEncoding();
    var hash= provider.ComputeHash(encoding.GetBytes(password));
    return Convert.ToBase64String(hash);
}

var pwdstr=HashPassword(password);
var user=(from u in context.Users
          where u.UserName.Equals(username) && u.pwd.Equals(pwdstr)  
          select u);

This is simple way to set and check password stored in database.Hope it will helpful.To store in a database use first method and to compare use second method.Until next post cheers!!!