public static List <PasswordEquivalenceClass> ToEquavalenceClasses(List <string> pwdList)
{
List <PasswordEquivalenceClass> pwdClassList = new List <PasswordEquivalenceClass>();
List <Password> pwdList_PasswordClass = new List <Password>();
char delimiter = ' ';
string[] parts;
foreach (var pwd_string in pwdList)
{
parts = pwd_string.Split(delimiter);
var pwd_PasswordClass = new Password()
{
Frequency = int.Parse(parts[0]),
Index = int.Parse(parts[1])
};
pwdList_PasswordClass.Add(pwd_PasswordClass);
}
var pwdClasses = from item in pwdList_PasswordClass
group item by item.Frequency;
foreach (var pwdClass in pwdClasses)
{
var pc = new PasswordEquivalenceClass()
{
NumberOfUsersSharingASpecificPassword = pwdClass.Key,
PasswordOccurrence = pwdClass.Count()
};
pwdClassList.Add(pc);
}
using (StreamWriter sr = new StreamWriter(@"/Users/wenjiebai/Projects/SketchCountTest/pwc.txt"))
{
foreach (var item in pwdClassList)
{
Console.WriteLine(item.NumberOfUsersSharingASpecificPassword + " " + item.PasswordOccurrence);
}
}
return(pwdClassList);
}
//private Dictionary<string, string> ClassifySampled_EC(List<Password> sampled_dist, double threshold1, double threshold2)
//{
// Dictionary<string, string> dic = new Dictionary<string, string>();
// var q = from x in sampled_dist
// group x by new { prob = x.ActualProbability} into g
// orderby g.Key.frequency
// select g;
// foreach (var sampledPwd in sampled_dist)
// {
// if (sampledPwd.ActualProbability <= threshold1)
// {
// sampledPwd.Strength = "strong";
// }
// else if (sampledPwd.ActualProbability <= threshold2)
// {
// sampledPwd.Strength = "medium";
// }
// else
// {
// sampledPwd.Strength = "weak";
// }
// dic.Add(sampledPwd.Name, sampledPwd.Strength);
// }
//var q = from x in sampled_dist
// group x by new { frequency = x.UpdatedFrequency, strength = x.Strength } into g
// orderby g.Key.frequency
// select g;
//int sum = 0;
//using (StreamWriter sr = new StreamWriter(@"/Users/wenjiebai/Projects/SketchCountTest/OutputPEC_trained.txt"))
//{
// foreach (var x in q)
// {
// sr.WriteLine(x.Key.frequency + " " + x.Key.strength + " " + x.Count());
// sum += x.Key.frequency * x.Count();
// }
//}
//Console.WriteLine("sanity check " + sum);
// return dic;
//}
private List <PasswordEquivalenceClass> FakePasswords_To_EquivalenceClass(List <Password> pwd_user)
{
var pwd_dist = pwd_user.Distinct().ToList();
var q = from x in pwd_dist
group x by x.UpdatedFrequency into g
orderby g.Key descending
select g;
List <PasswordEquivalenceClass> sampled_pwdEC_List = new List <PasswordEquivalenceClass>();
foreach (var item in q)
{
Console.WriteLine(item.Key + " " + item.Count());
PasswordEquivalenceClass pwdEC = new PasswordEquivalenceClass()
{
NumberOfUsersSharingASpecificPassword = item.Key,
PasswordOccurrence = item.Count()
};
sampled_pwdEC_List.Add(pwdEC);
}
return(sampled_pwdEC_List);
}