HW9 Part 3

//Dustin Dodson
//Introduction to Digital Forensics
//HW9.cpp


//Library needed for input/output
#include <iostream>

//Library needed for storing std::string variables
#include <string>

#include <stdlib.h> //Needed for srand() and rand()
#include <time.h>   //Needed for time()

/*Main function can take a std::string through command line
or will prompt for one if none are given            */
int main(const int argc, char * argv[])
{
    //Setting up initial variables
    std::string attemptPass, pass = "";

    //Keeping track of time as user types
    time_t startTime = time(NULL), typeTime;
    int runTime = 0;

    //Seed for the rand() function
    srand(startTime);

    /*If there was a std::string passed through command line
    then set it as given password, otherwise prompt user*/
    if(argc > 1) attemptPass = argv[1];
    else
    {
        std::cout << "Password: ";
        getline(std::cin, attemptPass);
    }

    //Store time after user gives password
    typeTime = time(NULL);

    /*Find out how many seconds it took user to
    enter password*/
    runTime = (typeTime-startTime);

    /*This series of loops will generate a random password
    that has a length of at least 9. The password will vary
    depending on how long it took user to give input.*/
    while(pass.size()<9)
    {
        int random = (rand()%20);
        for(int i = 0; i < random; i++)
        {
            if(i%2==0) pass += char((rand()%52)+65);
            else if(i%3==0) pass += char((runTime%10)+48);
            else pass += char((rand()%15)+33);
        }
    };

    //Compare generated password with one given by user, give respective message
    ((attemptPass == pass)?(std::cout<<"You have passed the test!\n"):(std::cout<<"You have failed the test!\n"));

    //Prompts for any kind of user input to close window
    char input;
    std::cout << "Press ENTER to continue...";
    std::cin.ignore(80, '\n');

    return 0;
}