(Perl) Blowfish Encryption to Match PHP's Mcrypt Extension

Demonstrates how to match Blowfish encryption results with PHP's mcrypt extension.

Please refer to this PHP (non-Chilkat) example for PHP Blowfish Encryption. The code here matches the PHP mcrypt results on that web page.

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();

# Use "blowfish2" to get proper results:
$crypt->put_CryptAlgorithm("blowfish2");

# CipherMode may be "ecb" or "cbc"
$crypt->put_CipherMode("cbc");

# KeyLength (in bits) may be a number between 32 and 448.
# 128-bits is usually sufficient.  The KeyLength must be a 
# multiple of 8.
$crypt->put_KeyLength(256);

# Pad with NULL bytes (PHP pads with NULL bytes)
$crypt->put_PaddingScheme(3);

# EncodingMode specifies the encoding of the output for
# encryption, and the input for decryption.
# It may be "hex", "url", "base64", or "quoted-printable".
$crypt->put_EncodingMode("hex");

# The blowfish algorithm uses a 64-bit block size, 
# therefore the IV must be 8 bytes:
$ivAscii = "12345678";
$crypt->SetEncodedIV($ivAscii,"ascii");

# For 256-bit encryption, the key is 32 bytes:
$keyAscii = "1234567890123456ABCDEFGHIJKLMNOP";
$crypt->SetEncodedKey($keyAscii,"ascii");

$plainText = "The quick brown fox jumped over the lazy dog";

$cipherText = $crypt->encryptStringENC($plainText);
print $cipherText . "\r\n";
# Output should be (case insensitive):
# 276855ca6c0d60f7d9708210440c1072e05d078e733b34b4198d609dc2fcc2f0c30926cdef3b6d52baf6e345aa03f83e

# Do 128-bit Blowfish encryption:
$crypt->put_KeyLength(128);
$keyAscii = "1234567890123456";
$crypt->SetEncodedKey($keyAscii,"ascii");

$cipherText = $crypt->encryptStringENC($plainText);
print $cipherText . "\r\n";
# Output should be (case insensitive):
# d2b5abb73208aea3790621d028afcc74d8dd65fb9ea8e666444a72523f5ecca60df79a424e2c714fa6efbafcc40bdca