static void Main(string[] args)
{
var app = new CommandLineApplication();
app.Description = "Password storage utility.";
app.HelpOption("-?|-h|--help");
app.Command("a2c", command =>
{
command.Description = "Perform an Argon2 calibration to determine the best combination of iterations, memory usage, and parallel threads for password storage using Argon2.";
command.HelpOption("-?|-h|--help");
var timeOption = command.Option(
"-t|--time",
"The maximum time in milliseconds it should take to calculate the password hash. Defaults to 1000.",
CommandOptionType.SingleValue
);
var parallelismOption = command.Option(
"-p|--parallelism",
"The degree of parallelism. Defaults to twice the number of CPU cores.",
CommandOptionType.SingleValue
);
var iterationsOption = command.Option(
"-i|--iterations",
"The minimum number of iterations. Defaults to 2.",
CommandOptionType.SingleValue
);
var modeOption = command.Option(
"-m|--mode",
"The mode of operation. The default is Argon2id. Advanced usage only.",
CommandOptionType.SingleValue,
c => c.ShowInHelpText = false
);
var saltLengthOption = command.Option(
"--saltlength",
"The length of the salt and password, in bytes. Defaults to 16. Advanced usage only.",
CommandOptionType.SingleValue,
c => c.ShowInHelpText = false
);
var hashLengthOption = command.Option(
"--hashlength",
"The length of the hash, in bytes. Defaults to 16. Advanced usage only.",
CommandOptionType.SingleValue,
c => c.ShowInHelpText = false
);
command.OnExecute(() =>
{
var factory = new Argon2Factory();
var logger = new Argon2Logger();
var input = new Argon2CalibrationInput()
{
MaximumTime = ReadOption(timeOption, () => 1000),
DegreeOfParallelism = ReadOption(parallelismOption, () => SystemManagement.GetTotalCpuCores() * 2),
MinimumIterations = ReadOption(iterationsOption, () => 2),
Mode = ReadOption(modeOption, () => Argon2Mode.Argon2id),
SaltAndPasswordLength = ReadOption(saltLengthOption, () => 16),
HashLength = ReadOption(hashLengthOption, () => 16)
};
var calibrator = new Argon2Calibrator(factory, logger, input);
var results = calibrator.Run();
logger.WriteLine();
logger.WriteLine("Best results:");
results.ToList().ForEach(result => logger.WriteCalibrationResult(result));
return(0);
});
});
app.OnExecute(() => 0);
app.Execute(args);
}
