Crypt::Eksblowfish::Blowfish 0.008

Crypt::Eksblowfish::Blowfish is a Blowfish block cipher via Eksblowfish engine.

SYNOPSIS

use Crypt::Eksblowfish::Blowfish;

$block_size = Crypt::Eksblowfish::Blowfish->blocksize;
$key_size = Crypt::Eksblowfish::Blowfish->keysize;

$cipher = Crypt::Eksblowfish::Blowfish->new($key);

$block_size = $cipher->blocksize;
$ciphertext = $cipher->encrypt($plaintext);
$plaintext = $cipher->decrypt($ciphertext);

$p_array = $cipher->p_array;
$s_boxes = $cipher->s_boxes;
if($cipher->is_weak) { ...

An object of this type encapsulates a keyed instance of the Blowfish block cipher, ready to encrypt and decrypt.

Blowfish is a symmetric cipher algorithm designed by Bruce Schneier in 1993. It operates on 64-bit blocks, and takes a variable-length key from 32 bits (4 octets) to 448 bits (56 octets) in increments of 8 bits (1 octet).

This implementation of Blowfish uses an encryption engine that was originally implemented in order to support Eksblowfish, which is a variant of Blowfish modified to make keying particularly expensive. See Crypt::Eksblowfish for that variant; this class implements the original Blowfish.

Product's homepage

Requirements:

· Perl