Question

C++: Imagine you are developing a software package that requires users to enter their own passwords. Your software requires that users’ passwords meet the following criteria: -The password should be at least six characters long. You can set the maximum size and let the user know -The password should contain at least one uppercase and at least one lowercase letter. -The password should have at least one digit. Write a program that asks for a password into a c-string and then verifies that it meets the stated criteria. If it doesn’t, the program should display a message telling the user why.

Answer 1

Code:-

#include <iostream>
#include <cstdlib>
using namespace std;
void verification(bool& try_newpassword, char& verify1, char& verify2, char& verify3, char& verify4, char& character);
int main(){
int count=0;
char password, verify1 = 'n', verify2 = 'n', verify3 ='n', verify4 ='y', character ='n';
bool try_newpassword;
cout << "Please enter your password:\n";
verification(try_newpassword, verify1, verify2, verify3, verify4, character);
while (try_newpassword == true){
cout << "Please enter another password for verification.\n";
verification(try_newpassword, verify1, verify2, verify3, verify4, character);
}
char wait;
cin >> wait;
return 0;
}
void verification(bool& try_newpassword, char& verify1, char& verify2, char& verify3, char& verify4, char& character){
char password;
int count;
do{
cin.get(password);
if (isupper(password))
verify1 = 'y';
if (islower(password))
verify2 = 'y';
if (isdigit(password))
verify3 = 'y';
if (isalpha(password))
verify4 = 'y';
else
character = 'y';
count ++;
}while (password != '\n');
if ((verify1 == 'y' && verify2 == 'y') && (verify3 == 'y' && character == 'y') && (count >= 12)){
{
cout << "This password looks pretty good.\n";
}
try_newpassword = false;
}
else
{
if (verify1 == 'n')
cout << "Your password does not have at least one uppercase letter." << endl;
if (verify2 == 'n')
cout << "Your password does not have at least one lowercase letter." << endl;
if (verify3 == 'n')
cout << "Your password does not have at least one digit."<< endl;
if (character == 'n')
cout << "Your password does not have at least character that is neither"
"a letter nor a number." << endl;
if (count > 6)
cout << "Your password should be at least 6 characters long."<< endl;
try_newpassword = true;
}
return;
}

Output:-