public Simulator(DebugLogger logger, string path, ExperimentalConfiguration myExperimentalConfiguration, SimulatedPasswords simPasswords)
{
_simPasswords = simPasswords;
_logger = logger;
if (_Attempts == null)
{
_Attempts = new ConcurrentStreamWriter(path + "Attempts.txt");
}
_logger.WriteStatus("Entered Simulator constructor");
_experimentalConfiguration = myExperimentalConfiguration;
BlockingAlgorithmOptions options = _experimentalConfiguration.BlockingOptions;
//_logger.WriteStatus("Creating binomial ladder");
_binomialLadderFilter =
new BinomialLadderFilter(options.NumberOfBitsInBinomialLadderFilter_N, options.HeightOfBinomialLadder_H);
_ipHistoryCache = new ConcurrentDictionary <IPAddress, SimIpHistory>();
_userAccountController = new SimulatedUserAccountController();
_recentIncorrectPasswords = new AgingMembershipSketch(16, 128 * 1024);
//_logger.WriteStatus("Exiting Simulator constructor");
}
public void Generate(ExperimentalConfiguration experimentalConfiguration)
{
SimulatedUserAccountController simUserAccountController = new SimulatedUserAccountController();
_logger.WriteStatus("Creating accounts");
ConcurrentBag <SimulatedUserAccount> benignSimulatedAccountBag = new ConcurrentBag <SimulatedUserAccount>();
Parallel.For(0, (int)experimentalConfiguration.NumberOfBenignAccounts, (index) =>
{
//if (index > 0 && index % 10000 == 0)
// _logger.WriteStatus("Created {0:N0} benign accounts", index);
SimulatedUserAccount userAccount = simUserAccountController.Create(
"user_" + index.ToString(),
_simPasswords.GetPasswordFromWeightedDistribution()
);
userAccount.ClientAddresses.Add(_ipPool.GetNewRandomBenignIp());
string initialCookie = StrongRandomNumberGenerator.Get64Bits().ToString();
userAccount.Cookies.Add(initialCookie);
userAccount.HashesOfCookiesOfClientsThatHaveSuccessfullyLoggedIntoThisAccount[initialCookie] = true;
benignSimulatedAccountBag.Add(userAccount);
double inverseFrequency = Distributions.GetLogNormal(0, 1);
if (inverseFrequency < 0.01d)
{
inverseFrequency = 0.01d;
}
if (inverseFrequency > 50d)
{
inverseFrequency = 50d;
}
double frequency = 1 / inverseFrequency;
lock (BenignAccountSelector)
{
BenignAccountSelector.AddItem(userAccount, frequency);
}
});
BenignAccounts = benignSimulatedAccountBag.ToList();
// _logger.WriteStatus("Finished creating {0:N0} benign accounts",
// experimentalConfiguration.NumberOfBenignAccounts);
//_logger.WriteStatus("Creating attacker IPs");
_ipPool.GenerateAttackersIps();
//_logger.WriteStatus("Creating {0:N0} attacker accounts",
// experimentalConfiguration.NumberOfAttackerControlledAccounts);
ConcurrentBag <SimulatedUserAccount> maliciousSimulatedAccountBag = new ConcurrentBag <SimulatedUserAccount>();
Parallel.For(0, (int)experimentalConfiguration.NumberOfAttackerControlledAccounts, (index) =>
{
SimulatedUserAccount userAccount = simUserAccountController.Create(
"attacker_" + index.ToString(),
_simPasswords.GetPasswordFromWeightedDistribution());
userAccount.ClientAddresses.Add(_ipPool.GetRandomMaliciousIp());
maliciousSimulatedAccountBag.Add(userAccount);
});
AttackerAccounts = maliciousSimulatedAccountBag.ToList();
_logger.WriteStatus("Finished creating accounts",
experimentalConfiguration.NumberOfAttackerControlledAccounts);
Parallel.ForEach(BenignAccounts.Union(AttackerAccounts),
(simAccount, loopState) =>
{
simAccount.CreditHalfLife = experimentalConfiguration.BlockingOptions.AccountCreditLimitHalfLife;
simAccount.CreditLimit = experimentalConfiguration.BlockingOptions.AccountCreditLimit;
foreach (string cookie in simAccount.Cookies)
{
simUserAccountController.HasClientWithThisHashedCookieSuccessfullyLoggedInBefore(
simAccount,
LoginAttempt.HashCookie(cookie));
}
});
//_logger.WriteStatus("Finished creating user accounts for each simluated account record");
}
