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Man Pages


Manual Reference Pages  -  CRYPT::TRIPLEDES (3)

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NAME

Crypt::TripleDES - Triple DES encyption.

CONTENTS

SYNOPSIS



 my $des = new Crypt::TripleDES;
 my $cyphertext = $des->encrypt3 ( $plaintext, $passphrase );
 my $plaintext = $des->decrypt3 ( $cyphertext, $passphrase );



DESCRIPTION

This module implements 3DES encryption in ECB mode. The code is based on Eric Young’s implementation of DES in pure perl. It’s quite slow because of the way Perl handles bit operations and is not recommended for use with large texts.

METHODS

<B>newB> The constructor.
<B>encrypt3B> $plaintext, $passphrase Encrypts the plaintext string using the passphrase. Whitespace characters are appended to the string if its length is not a multiple of eight. User applications can correct for this by storing plaintext size with the cyphertext. The passphrase is an ASCII character string of upto 48 characters.
<B>decrypt3B> $cyphertext, $passphrase Inverse of encrypt3().

AUTHOR



 Vipul Ved Prakash, mail@vipul.net   
 Eric Young, eay@psych.psy.uq.oz.au

 Patches:
 Jonathan Mayer <jmayer@cobaltnet.com>



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perl v5.20.3 CRYPT::TRIPLEDES (3) 1999-10-13

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