private bool Login(string username, string password)
{
User user = AjudanteParaBD.SelectUserWithUsername(username);
string insertedRep = SHA256Code.GenerateFromText(SHA256Code.GenerateFromText(password) + user.salt);
return(user.rep.Equals(insertedRep));
}
public static bool Login(string username, string password)
{
string op = string.Empty;
User user = AjudanteParaBD.SelectUserWithUsername(username);
Console.Clear();
if (user == null)
{
Console.WriteLine("\nErro! O utilizador inserido nao existe.");
return(false);
}
//calcula o rep da palavra passe introduzida
string insertedRep = SHA256Code.GenerateFromText(SHA256Code.GenerateFromText(password) + user.salt);
if (user.rep.Equals(insertedRep))
{
Console.WriteLine("\nLogin efetuado com sucesso!\n");
userLog = username;
return(true);
}
else
{
Console.WriteLine("\nDados invalidos! Tente novamente.\n");
return(false);
}
}
public static void RegistoMenu()
{
string username = string.Empty;
string password = string.Empty;
string rep = string.Empty;
string salt = string.Empty;
User user = null;
do
{
Console.WriteLine("+----------------------------------------------------------+");
Console.WriteLine("| Registo |");
Console.WriteLine("+----------------------------------------------------------+");
Console.WriteLine("\nIntroduza os dados solicitados!");
Console.Write("Username:"******"Password:"******"Erro! A password deve conter no minimo 4 caracteres.");
}
} while (password.Length < 4);
//Calcula o SALT
salt = BitConverter.ToString(SHA256Code.GenerateSalt()).Replace("-", "");
//calcula o REP
rep = SHA256Code.GenerateFromText(SHA256Code.GenerateFromText(password) + salt);
user = new User(username, rep, salt);
} while (!DataBaseFunctions.Register(user));
LoginMenu();
}