Abhijit Menon-Sen > Crypt-GOST-1.00 > Crypt::GOST

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Module Version: 1.00   Source  

NAME ^

Crypt::GOST - The GOST Encryption Algorithm

SYNOPSIS ^

use Crypt::GOST;

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

$ciphertext = $cipher->encrypt($plaintext);

$plaintext = $cipher->decrypt($ciphertext);

DESCRIPTION ^

GOST 28147-89 is a 64-bit symmetric block cipher with a 256-bit key developed in the former Soviet Union. Some information on it is available at <URL:http://vipul.net/gost/>.

This module implements GOST encryption. It supports the Crypt::CBC interface, with the functions described below. It also provides an interface that is backwards-compatible with Crypt::GOST 0.41, but its use in new code is discouraged.

Functions

blocksize

Returns the size (in bytes) of the block (8, in this case).

keysize

Returns the size (in bytes) of the key (32, in this case).

new($key)

This creates a new Crypt::GOST object with the specified key.

encrypt($data)

Encrypts blocksize() bytes of $data and returns the corresponding ciphertext.

decrypt($data)

Decrypts blocksize() bytes of $data and returns the corresponding plaintext.

SEE ALSO ^

Crypt::CBC, Crypt::Twofish, Crypt::TEA

ACKNOWLEDGEMENTS ^

Vipul Ved Prakash

For writing Crypt::GOST 0.41, and reviewing the current version.

AUTHOR ^

Abhijit Menon-Sen <ams@wiw.org>

Copyright 2001 Abhijit Menon-Sen. All rights reserved.

This software is distributed under the terms of the Artistic License <URL:http://ams.wiw.org/code/artistic.txt>.

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