Beispiel #1
0
        public void buildRepository()
        {
            string line;

            string[] parts;
            char     delimiter = ' ';

            using (StreamReader sr = new StreamReader(_path))
            {
                while (sr.EndOfStream == false)
                {
                    line  = sr.ReadLine();
                    line  = line.Trim();
                    parts = line.Split(delimiter);
                    var pe = new PasswordEquivalenceClass
                    {
                        NumberOfUsersSharingASpecificPassword = Int32.Parse(parts[0]),
                        PasswordOccurrence = Int32.Parse(parts[1])
                    };

                    numberOfAccounts          += pe.NumberOfUsersSharingASpecificPassword * pe.PasswordOccurrence;
                    numberOfDistinctPasswords += pe.PasswordOccurrence;
                    numberOfEquivalenceClasses++;
                    PwcList.Add(pe);
                }
            }

            foreach (var pwc in PwcList)
            {
                pwc.EstimatedProbability = (double)pwc.NumberOfUsersSharingASpecificPassword / numberOfAccounts;
            }
            Console.WriteLine(numberOfAccounts);
            Console.WriteLine(numberOfDistinctPasswords);
            Console.WriteLine(numberOfEquivalenceClasses);
        }
Beispiel #2
0
        public void buildRepositoryOnPartitionedPasswords()
        {
            char[] delimiters = { ' ' };
            string line;

            string[] parts1;

            using (System.IO.StreamReader file = new System.IO.StreamReader(_path))
            {
                while (file.EndOfStream == false)
                {
                    line   = file.ReadLine();
                    line   = line.Trim();
                    parts1 = line.Split(delimiters);

                    var pe = new PasswordEquivalenceClass
                    {
                        NumberOfUsersSharingASpecificPassword = Int32.Parse(parts1[0]),
                        Strength           = parts1[1],
                        PasswordOccurrence = Int32.Parse(parts1[2])
                    };

                    numberOfAccounts          += pe.NumberOfUsersSharingASpecificPassword * pe.PasswordOccurrence;
                    numberOfDistinctPasswords += pe.PasswordOccurrence;
                    numberOfEquivalenceClasses++;
                    PwcList.Add(pe);
                }
            }

            foreach (var pwc in PwcList)
            {
                pwc.EstimatedProbability = (double)pwc.NumberOfUsersSharingASpecificPassword / numberOfAccounts;
            }

            Console.WriteLine(numberOfAccounts);
            Console.WriteLine(numberOfDistinctPasswords);
            Console.WriteLine(numberOfEquivalenceClasses);
        }