/// <summary>
/// This method will prime the simulator with known-popular passwords so that they are treated
/// as if the simulator had already observed them (or been configured with them)
/// </summary>
/// <returns></returns>
public void PrimeWithKnownPasswordsAsync(BinomialLadderFilter freqFilter, int numberOfTimesToPrime)
{
for (int i = 0; i < numberOfTimesToPrime; i++)
{
Parallel.ForEach(_passwordsAlreadyKnownToBePopular,
(password) => freqFilter.Step(password));
}
}
public void TwentyObservations()
{
BinomialLadderFilter freqFilter = new BinomialLadderFilter(1024*1024*1024, 64);
string somethingToObserve = "Gosh. It's a nice day out, isn't it?";
int observationCount = freqFilter.GetHeight(somethingToObserve);
for (int i = 0; i < 25; i++)
{
int lastCount = freqFilter.Step(somethingToObserve);
Assert.Equal(observationCount, lastCount);
observationCount++;
}
Assert.Equal(observationCount, freqFilter.GetHeight(somethingToObserve));
}
public void Init()
{
var builder = new ConfigurationBuilder()
.SetBasePath("")
.AddJsonFile("appsettings.json");
builder.AddEnvironmentVariables();
Configuration = builder.Build();
sqlConnectionString = Configuration["Data:ConnectionString"];
string cloudStorageConnectionString = Configuration["Data:StorageConnectionString"];
_options = new BlockingAlgorithmOptions();
DbContextOptionsBuilder<DbUserAccountContext> dbOptionsBuilder = new DbContextOptionsBuilder<DbUserAccountContext>();
dbOptionsBuilder.UseSqlServer(sqlConnectionString);
dbOptions = dbOptionsBuilder.Options;
_CloudStorageAccount = CloudStorageAccount.Parse(cloudStorageConnectionString);
userAccountControllerFactory = new DbUserAccountControllerFactory(_CloudStorageAccount, dbOptions);
userAccountController = userAccountControllerFactory.CreateDbUserAccountController();
RemoteHost localHost = new RemoteHost { Uri = new Uri("http://localhost:35358") };
MaxWeightHashing<RemoteHost> hosts = new MaxWeightHashing<RemoteHost>(Configuration["Data:UniqueConfigurationSecretPhrase"]);
LoginAttemptClient<DbUserAccount> loginAttemptClient = new LoginAttemptClient<DbUserAccount>(hosts, localHost);
_UserAccountRepositoryFactory = new DbUserAccountRepositoryFactory(dbOptions);
BinomialLadderFilter localPasswordBinomialLadderFilter = new BinomialLadderFilter(
_options.NumberOfBitsInBinomialLadderFilter_N, _options.HeightOfBinomialLadder_H);
_loginAttemptController = new LoginAttemptController<DbUserAccount>(
userAccountControllerFactory, _UserAccountRepositoryFactory,
localPasswordBinomialLadderFilter,
new MemoryUsageLimiter(), _options);
//services.AddEntityFramework()
// .AddSqlServer()
// .AddDbContext<DbUserAccountContext>(opt => opt.UseSqlServer(sqlConnectionString));
//DbUserAccountContext context = new DbUserAccountContext();
//var db = new DbContextOptionsBuilder();
//db.UseInMemoryDatabase();
//_context = new MyContext(db.Options);
}
public static TestConfiguration InitTest(BlockingAlgorithmOptions options = default(BlockingAlgorithmOptions))
{
if (options == null)
options = new BlockingAlgorithmOptions();
TestConfiguration configuration = new TestConfiguration();
configuration.MyBlockingAlgorithmOptions = options ?? new BlockingAlgorithmOptions();
//configuration.MyResponsibleHosts = new MaxWeightHashing<RemoteHost>("FIXME-uniquekeyfromconfig");
//RemoteHost localHost = new RemoteHost { Uri = new Uri("http://localhost:80") };
//configuration.MyResponsibleHosts.Add("localhost", localHost);
//IStableStore stableStore = configuration.StableStore = new MemoryOnlyStableStore();
//configuration.MyLoginAttemptClient = new LoginAttemptClient(configuration.MyResponsibleHosts, localHost);
MemoryUsageLimiter memoryUsageLimiter = new MemoryUsageLimiter();
BinomialLadderFilter localPasswordBinomialLadderFilter =
new BinomialLadderFilter(options.NumberOfBitsInBinomialLadderFilter_N, options.HeightOfBinomialLadder_H);
//MultiperiodFrequencyTracker<string> localPasswordFrequencyTracker =
// new MultiperiodFrequencyTracker<string>(
// options.NumberOfPopularityMeasurementPeriods,
// options.LengthOfShortestPopularityMeasurementPeriod,
// options.FactorOfGrowthBetweenPopularityMeasurementPeriods);
configuration.MyAccountFactory = new MemoryOnlyUserAccountFactory();
configuration.MemUserAccountController = new MemoryUserAccountController();
LoginAttemptController<MemoryUserAccount> myLoginAttemptController =
new LoginAttemptController<MemoryUserAccount>(
new MemoryUserAccountControllerFactory(),
configuration.MyAccountFactory,
localPasswordBinomialLadderFilter,
memoryUsageLimiter, configuration.MyBlockingAlgorithmOptions);
configuration.MyLoginAttemptClient = myLoginAttemptController;
//configuration.MyLoginAttemptClient.SetLocalLoginAttemptController(myLoginAttemptController);
return configuration;
}
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
// Add framework services.
services.AddMvc();
string sqlConnectionString = Configuration["Data:ConnectionString"];
services.AddDbContext<DbUserAccountContext>(
opt => opt.UseSqlServer(sqlConnectionString));
// Uncomment the following line to add Web API services which makes it easier to port Web API 2 controllers.
// You will also need to add the Microsoft.AspNet.Mvc.WebApiCompatShim package to the 'dependencies' section of project.json.
// services.AddWebApiConventions();
BlockingAlgorithmOptions options = new BlockingAlgorithmOptions();
services.AddSingleton<BlockingAlgorithmOptions>(x => options);
RemoteHost localHost = new RemoteHost { Uri = new Uri("http://localhost:35358") };
services.AddSingleton<RemoteHost>(x => localHost);
MaxWeightHashing<RemoteHost> hosts = new MaxWeightHashing<RemoteHost>(Configuration["Data:UniqueConfigurationSecretPhrase"]);
hosts.Add("localhost", localHost);
services.AddSingleton<IDistributedResponsibilitySet<RemoteHost>>(x => hosts);
string cloudStorageConnectionString = Configuration["Data:StorageConnectionString"];
CloudStorageAccount cloudStorageAccount = CloudStorageAccount.Parse(cloudStorageConnectionString);
services.AddSingleton<CloudStorageAccount>(a => cloudStorageAccount);
services.AddSingleton<MemoryUsageLimiter, MemoryUsageLimiter>();
if (hosts.Count > 0)
{
DistributedBinomialLadderFilterClient dblfClient = new DistributedBinomialLadderFilterClient(
options.NumberOfVirtualNodesForDistributedBinomialLadder,
options.HeightOfBinomialLadder_H,
hosts,
options.PrivateConfigurationKey,
options.MinimumBinomialLadderFilterCacheFreshness);
// If running as a distributed system
services.AddSingleton<IBinomialLadderFilter, DistributedBinomialLadderFilterClient>(x => dblfClient);
DistributedBinomialLadderFilterController filterController =
new DistributedBinomialLadderFilterController(dblfClient, options.NumberOfBitsPerShardInBinomialLadderFilter, options.PrivateConfigurationKey);
services.AddSingleton<DistributedBinomialLadderFilterController>(x => filterController);
//services.AddSingleton<IFrequenciesProvider<string>>(x =>
// new IncorrectPasswordFrequencyClient(hosts, options.NumberOfRedundantHostsToCachePasswordPopularity));
}
else
{
BinomialLadderFilter localPasswordBinomialLadderFilter =
new BinomialLadderFilter(options.NumberOfBitsInBinomialLadderFilter_N, options.HeightOfBinomialLadder_H);
services.AddSingleton<IBinomialLadderFilter>(x => localPasswordBinomialLadderFilter);
}
LoginAttemptClient<DbUserAccount> loginAttemptClient = new LoginAttemptClient<DbUserAccount>(hosts, localHost);
services.AddSingleton<IUserAccountRepositoryFactory<DbUserAccount>, DbUserAccountRepositoryFactory>();
services.AddSingleton<IUserAccountControllerFactory<DbUserAccount>, DbUserAccountControllerFactory>();
//LoginAttemptController<DbUserAccount> loginAttemptController = new LoginAttemptController<DbUserAccount>(
// new DbUserAccountControllerFactory(cloudStorageAccount), new DbUserAccountRepositoryFactory());
services.AddSingleton<ILoginAttemptClient, LoginAttemptClient<DbUserAccount>>(i => loginAttemptClient);
services.AddSingleton<ILoginAttemptController, LoginAttemptController<DbUserAccount>>();
}
//public void ReduceMemoryUsage(object sender, MemoryUsageLimiter.ReduceMemoryUsageEventParameters parameters)
//{
//_ipHistoryCache.RecoverSpace(parameters.FractionOfMemoryToTryToRemove);
//}
public Simulator(DebugLogger logger, string path, ExperimentalConfiguration myExperimentalConfiguration, SimulatedPasswords simPasswords)
{
_simPasswords = simPasswords;
_logger = logger;
_AttackAttemptsWithValidPasswords = //System.IO.TextWriter.Synchronized
new ConcurrentStreamWriter(path + "AttackAttemptsWithValidPasswords.txt");
//(new StreamWriter(new FileStream(path + "AttackAttemptsWithValidPasswords.txt", FileMode.CreateNew, FileAccess.Write)));
_LegitimateAttemptsWithValidPasswords = //System.IO.TextWriter.Synchronized
new ConcurrentStreamWriter(path + "LegitimateAttemptsWithValidPasswords.txt");
//(new StreamWriter(new FileStream(path + "LegitiamteAttemptsWithValidPasswords.txt", FileMode.CreateNew, FileAccess.Write)));
_OtherAttempts = //System.IO.TextWriter.Synchronized
new ConcurrentStreamWriter(path + "OtherAttempts.txt");
//(new StreamWriter(new FileStream(path + "OtherAttempts.txt", FileMode.CreateNew, FileAccess.Write)));
_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>(); // new SelfLoadingCache<IPAddress, SimIpHistory>(address => new SimIpHistory(options.NumberOfFailuresToTrackForGoingBackInTimeToIdentifyTypos));
_userAccountController = new SimulatedUserAccountController();
//_memoryUsageLimiter = new MemoryUsageLimiter();
//_memoryUsageLimiter.OnReduceMemoryUsageEventHandler += ReduceMemoryUsage;
_recentIncorrectPasswords = new AgingMembershipSketch(16, 128 * 1024);
_logger.WriteStatus("Exiting Simulator constructor");
}