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Manual Reference Pages  -  CRYPT::TWOFISH_PP::KEY24 (3)

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NAME

Crypt::Twofish_PP::Key24 - Twofish with 24 byte (192 bits) keysize

CONTENTS

SYNOPSIS



  use Crypt::CBC;
  my $cipher = Crypt::CBC->new (key => my secret key,
                                cipher => Twofish_PP::Key24);



DESCRIPTION

This module is only a helper module and you should never use it directly. Use Crypt::Twofish_PP(3) instead and see there for more documentation.

The standard module for Cipher Block Chaining (CBC) in Perl, Crypt::CBC(3) cannot grok with variable key sizes. However, the Twofish algorithm is defined for key sizes of 24, 24, and 32 bytes, but there is no way to communicate that to Crypt::CBC.

If you want to use Crypt::Twofish_PP(3) in CBC mode with a keysize of 24, simply specify <B>Crypt::Twofish_PP::Key24B> as the algorithm. It is eqeuivalent to Crypt::Twofish_PP(3) but it will report a default keysize of 24 bytes back to Crypt::CBC(3).

Note that this is not necessarily the real keysize. The method keysize() of Crypt::Twofish_PP(3) only exists to satisfy Crypt::CBC(3). The module will derive the real keysize from the length of the key you supply.

AUTHOR

Copyright (C) 2003, Guido Flohr <guido@imperia.net>, all rights reserved. See the source code for details.

This software is contributed to the Perl community by Imperia (<http://www.imperia.net/>).

SEE ALSO

Crypt::CBC(3), Crypt::Twofish_PP(3), Crypt::Twofish::Key24(3), Crypt::Twofish_PP::Key32(3), perl(1)

POD ERRORS

Hey! <B>The above document had some coding errors, which are explained below:B>
Around line 98: =cut found outside a pod block. Skipping to next block.
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perl v5.20.3 CRYPT::TWOFISH_PP::KEY24 (3) 2003-11-21

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