#include using namespace std; int main() { char PW[20]; int number=0, special=0, Calpha=0, Salpha=0; int nofchar; int specialrepeats=0, numberrepeats=0; bool spaces=1; cout << "\n_________________________________________\n\n\n\n\n --CHECK YOUR PASSWORD STRENGTH--\n\n\n>>>> "; cin>>PW; for(int x=0; x<20; x++) { if(PW[x]==0) { nofchar=x; break; } } // NUMBERS CONTAINED ? for(int x= 0; x < 20; x++) { if(PW[x]>=48 && PW[x]<=57) { number++; } } // SPECIAL CHARACTERS? for(int x= 0; x < 20; x++) { if((PW[x]>=33 && PW[x]<=47) || (PW[x]>=58 && PW[x]<=64) || (PW[x]>=91 && PW[x]<=96) || (PW[x]>=123 && PW[x]<=126)) { special++; } } // SPACES ? for(int x= 0; x < 20; x++) { if(PW[x]== 32) { spaces=0; break; } } //capital ALPHABET ? for(int x= 0; x < 20; x++) { if(PW[x]>=65 && PW[x]<=90) { Calpha++; } } // Small ALPHABET ? for(int x= 0; x < 20; x++) { if(PW[x]>=97 && PW[x]<=123) { Salpha++; } } // ALPHAVARIATIONS int alphaVar =Salpha-Calpha; if (alphaVar<0) { alphaVar*=(-1); } // ERRORS ? if(number==0) { cout << "\nYour Password should contain ATLEAST ONE NUMBER"; } if(special==0) { cout << "\nYour Password should contain ATLEAST ONE SPECIAL CHARACTER"; } if(!spaces) { cout << "\nSPACES ARE NOT ALLOWED"; } if(nofchar<5) { cout << "\nYour Password should contain ATLEAST 5 CHARACTERS not greater than 20"; } for(int x=0; x=33 && PW[x]<=47) || (PW[x]>=58 && PW[x]<=64) || (PW[x]>=91 && PW[x]<=96) || (PW[x]>=123 && PW[x]<=126)) { specialrepeats++; special-=specialrepeats-1; } if(PW[x]>=48 && PW[x]<=57) { numberrepeats++; number-=numberrepeats-1; } } } if(specialrepeats || numberrepeats) { cout << "\nWARNING: Your Password contains CONSECTIVE REPEATED CHARACTERS !!!"; } // SECURITY ? if(number && special && spaces) { cout << "\n\nPassword security : "; if(number==1 || special==1 || alphaVar>6) { cout << "Medium"; main(); return 0; } else if(number<=2 || special<=2 || alphaVar>5) { cout << "Under High"; main(); return 0; } else if(number<3 || special<3|| alphaVar>4) { cout << "High"; main(); return 0; } else if(number<4 || special<4|| alphaVar>3) { cout << "Very High"; main(); return 0; } else if(number<5 || special<5 || alphaVar>2) { cout << "Extreme!"; main(); return 0; } else if(number<6 || special<6 || alphaVar>1) { cout << "Insane!"; main(); return 0; } else{cout<<"Insane!!!!";} } }

(12) Password Validator