/* PASSWORD GENERATOR AND STRENGTH CHECKER The password strength checker is a simple implementation of an article I read: 📖📕📓📑 https://nulab-inc.com/blog/tech/password-strength/ ✅First input is your desired length for the random password. ✅Second input is your password or any text. 🚫DISCLAIMER : The formulas I used are just based on my opinion and choice. They have no factual or standard basis. Some strong passwords might be evaluated as weak. */ #include #include #include using namespace std; int isLengthy(string p){ // checks the length of the password and computes strength value of it. The formula is just my choice. It has no factual or standard basis. int c = -10; if(p.length() < 7){ c -= ((7-p.length()) * 2); } else{ c += (p.length() * 2); } cout << "is lengthy : " << c << " points" << endl; return c; } int hasAllTypes(string p){ //checks the string if it has lowercase, uppercase, symbols, and digits. int upperc=0, lowerc=0, digit=0, symbol=0; int val, c=0; int lowest; for(int x=0; x=97 && val<=122) lowerc++; else if(val>=65 && val<=90) upperc++; else if(val>=48 && val<=57) digit++; else symbol++; } if(upperc>0)c+=10; if(lowerc>0)c+=10; if(digit>0)c+=10; if(symbol>0)c+=10; // adds strength based on the characters. I gave priority to symbols coz I think symbols are less used. c+=(1*upperc); c+=(0.5*lowerc); c+=(1.5*digit); c+=(3*symbol); cout << "has all types : " << c << " points" << endl; return c; } int isRepeating(string p){ // checks for repeating characters like 22222 or jjjj. char n = p[0]; int len = 1; int c = 0; for(int x=1; x3)c -= (len*3); if(len==1)c+=2; n = p[x]; len=1; } } cout << "is repeating : " << c << " points" << endl; return c; } string L33t(string p){ //converts stylized words to normal like $0l0l3@rn to sololearn string n = ""; char z; for(int x=0; x47 && t<58) || (t>64 && t<91) || (t>96 && t<123)){ if(n == p[x]-1){ n = p[x]; len++; } if(n != p[x-1]+1 || x == p.length()-1){ n = p[x]; if(len > 2)c -= len*(len-1); len = 1; } } } cout << "has consecutive chars : " << c << " points" << endl; return c; } int hasEmailAddress(){ int c = 0; // none ... return c; } string passwordGenerator(int len){ string pass = ""; // range : 33 - 126 int r; for(int x = 0; x < len; x++){ r = (rand()%93) + 33; pass += char(r); } return pass; } int strengthChecker(string pass){ int strength = 0; strength += isLengthy(pass); strength += hasAllTypes(pass); strength += isRepeating(pass); strength += hasCommonWords(pass); strength += hasConsecutiveChars(pass); return strength; } string evaluate(int s){ string a; if(s<0){ a = "Is that even a password?"; }else if(s<10){ a = "Too weak dude!"; }else if(s<40){ a = "Moderately weak. Sorry"; }else if(s<60){ a = "Not bad. Moderate Strength"; }else if(s<80){ a = "Pretty strong. Keep it up"; }else if(s<100){ a = "Nice password. Strong."; }else if(s<150){ a = "Wow! Very strong password"; }else if(s<200){ a = "Unbelievably strong password"; }else{ a = "Insanely strong! How can you even remember that one."; } return a; } int main() { srand(time(NULL)); // default password and length /////random password string pass = "$ol0le@rn57123="; int pass_length = 14; cin >> pass_length; pass = passwordGenerator(pass_length); cout << "Generated Password : " << pass << endl << "Length : " << pass_length << endl; int strength = strengthChecker(pass); cout << "Password Strength Score: " << strength << endl; cout << "Strength Evaluation : " << evaluate(strength) << endl; ///// user defined password string user_pass = "iLoveXol0l3arn"; cin >> user_pass; cout << "\n\nYour Password : " << user_pass << "\nLength : " << user_pass.length() << endl; int user_str = strengthChecker(user_pass); cout << "Strength Score: " << user_str << endl; cout << "Strength Evaluation : " << evaluate(user_str) << endl; cout << "\n"; return 0; }

Password Generator and Checker v1.1