Login Security System in Perl

I wrote this program to show how to make login security system using Perl programming language.

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Program Listing

# login_string.pl

# Author   : Jake R. Pomperada,MAED-IT,MIT

# Date     : April 8, 2020   Wednesday  7;40 PM

# Location : Bacolod City, Negros Occidental

# Email    : jakerpomperada@gmail.com

# Website  : http://www.jakerpomperada.com

sub get_pword {

    use Term::ReadKey;

    my ($prompt) = shift; 

    my $pword;

    my $key;

    local $| = 1;  

    print "$prompt: ";

    ReadMode 4;   

    while( 1 ) {

        while (not defined ($key = ReadKey(-1))) { }

        if(ord($key) == 13) {

            print "\n";       

            last;            

        }

        print '*';

        $pword .= $key;

    }

    ReadMode 0; 

    return $pword; 

}

    back:

    print("\n\n");

    print("\tLogin Security System in Perl");

    print("\n\n");

  

    print("\tEnter Your Username  : ");

    chomp($username=<STDIN>);

   

my $password = get_pword("\tEnter Your Password   " );

    

    $user_check = lc $username;

    $pass_check = lc $password;

    if  ($user_check eq "admin"  && $pass_check eq "123") {

        print("\n\n");

        printf("\tPassword is accepted. Welcome to the system.")

    } else

      {

          print("\n\n");

          printf("\tInvalid Password. Try Again.");

          print("\n\n");

          goto back;

      }

    print("\n\n");

    print("\t\tEnd of Program");

    print("\n\n");