(Perl) PBKDF2 - Derive Key from Password

Demonstrates how to derive a symmetric encryption key from a password using PBKDF2.

For more information, see https://www.chilkatsoft.com/key_derivation_pbkdf2.asp

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux

use chilkat();

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

$crypt = chilkat::CkCrypt2->new();

$pw = "password";

$pwCharset = "utf-8";

# Such as sha256, sha512
$hashAlg = "sha256";

# 16 bytes
$saltHex = "78578E5A5D63CB0668AB39B21C8637FA";

$iterationCount = 100000;

# Derive a 256-bit key from the password.
$outputBitLen = 256;

# The derived key is returned as a hex or base64 encoded string.
# (Note: The salt argument must be a string that also uses
# the same encoding.)
$enc = "hex";

$hexKey = $crypt->pbkdf2($pw,$pwCharset,$hashAlg,$saltHex,$iterationCount,$outputBitLen,$enc);

print $hexKey . "\r\n";

# Sample output:
# AE96E261E32792D0FD6F0E72F8E872D046F7DB4C1FA7C83892EC73C49F461B70