Create Password SHA1 C#

using System.Security.Cryptography;
using System.Text.RegularExpressions;

public string CreatePasswordSHA1(string password)
{
            SHA1CryptoServiceProvider sha1 = new      SHA1CryptoServiceProvider();
            byte[] bs = System.Text.Encoding.UTF8.GetBytes(password);
            bs = sha1.ComputeHash(bs);
            System.Text.StringBuilder s = new System.Text.StringBuilder();
            foreach (byte b in bs){
                s.Append(b.ToString("x2").ToLower());
            }
            return s.ToString();
}