C Project – How to Read a Password in C with Source Code

Program 1

#include<stdio.h>
#include<conio.h>
#define clrscr() system("cls")
int main()
{
    static int i=0;
    char ch1,ch2,ch3,ch4;
    clrscr();
    pin:printf("\nEnter a pin: ");
    ch1=getch();
    printf("*");
    ch2=getch();
    printf("*");
    ch3=getch();
    printf("*");
    ch4=getch();
    printf("*");
   if(ch1=='1'&&ch2=='2'&&ch3=='3'&&ch4=='4')
   printf("\nYou are valid user");
   else
   {
        if(i==2)
        {
           printf("Contact to admin......");
           exit(0); 
        }
       else
       { 
           i++;
           printf("\nIncorrect pin...... enter again\n");
          goto pin;
       }   
   }  


    

}

Program 2

#include<stdio.h>
#include<conio.h>
#include<string.h>
#define clrscr() system("cls")
int main()
{
    int p=0,i=0;
    char ch,pass[50],pass1[50];
    clrscr();
    printf("\nEnter a password: ");
     while(1)
     {
       ch=getch();
       printf("*");
         if(ch==9)
            continue;
         if(ch==13)
           break;
        pass[p]=ch;   
        ++p;
     }  
 if(pass[0]=='m' && pass[1]=='o'&& pass[2]=='n' && pass[3]=='u')
    printf("Valid user");
else
    printf("In valid  password.....");
     
     
      
 }