(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, Solaris

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