je gebruikt verkeerde codering. probeer de volgende code:
string salt = "123";
System.Security.Cryptography.SHA1 sha = System.Security.Cryptography.SHA1.Create();
byte[] preHash = System.Text.Encoding.UTF8.GetBytes(salt);
byte[] hash = sha.ComputeHash(preHash);
string password = System.Convert.ToBase64String(hash);
password = password.Substring(0, 8);