If you don't insist STDIN, and open to GUI solution, I stripped piece of my old code, and here it is: (you don't need to port your entire application to GUI, just use this to get password. It can be easily wrapped in a function.)

use Tk;
use Tk::DialogBox;
use strict;
use warnings;

my $mw = MainWindow->new(title => "Password Demo");

my $login_first_try = 1;    
my $id;
my $passwd;

while (1) {
    my $dialog = $mw->DialogBox(-buttons => ["OK", "Cancel"], -title =
+> "Login");
    my $instruction;
    if ($login_first_try) {
        $instruction = "Please provide id/passwd: ";
        $login_first_try = 0;
    } else {
        $instruction = "Failed to login, please try again: "
    }

    $dialog->add("Label", anchor => "w", text => $instruction)->pack(f
+ill => "x");
    my $id_text = $dialog->add("Entry", width => 30)->pack();
    my $passwd_text = $dialog->add("Entry", show => "*", width => 30)-
+>pack();
    $id_text->focus();
    if ($dialog->Show() eq "OK") {
        print "OK pressed, validate here, if okay last and quit the wh
+ile loop"
        #.............
    } else {
        exit;
    }
}

[download]

In reply to Re: Reading password from STDIN without echoing by pg
in thread Reading password from STDIN without echoing by gitarwmn

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.