Perl Requires Chilkat v9.5.0.65+

BCrypt Verify a Password (Check if Password is Correct)

See more Encryption Examples

A system that uses BCrypt for storing passwords would not store the actual password, but would instead store the bcrypt hash of the password. When a user presents the password, such as for login, call BCryptVerify to verify the password against the stored bcrypt hash. Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

my $crypt = Chilkat2::Crypt2->new;

my $storedHash = '$2a$10$H5kIVktMGzAPKGKNAe9DVu0iwEqfhv/o4MMJ/Dzw/MPy1leOE9NOK';
my $password = 'mySecretPassword';

my $passwordValid = $crypt->BCryptVerify($password, $storedHash);
if ($passwordValid) {
    print $password, " is valid.\n";
} else {
    print $password, " is NOT valid.\n";
}

$password = 'notAValidPassword';
$passwordValid = $crypt->BCryptVerify($password, $storedHash);
if ($passwordValid) {
    print $password, " is valid.\n";
} else {
    print $password, " is NOT valid.\n";
}

# Output should be:

#     mySecretPassword is valid.
#     notAValidPassword is NOT valid.