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Manual Reference Pages  -  CRYPT::CIPHER::BLOWFISH (3)

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NAME

Crypt::Cipher::Blowfish - Symetric cipher Blowfish, key size: 64-448 bits (Crypt::CBC compliant)

CONTENTS

SYNOPSIS



  ### example 1
  use Crypt::Mode::CBC;

  my $key = ...; # length has to be valid key size for this cipher
  my $iv = ...;  # 16 bytes
  my $cbc = Crypt::Mode::CBC->new(Blowfish);
  my $ciphertext = $cbc->encrypt("secret data", $key, $iv);

  ### example 2
  use Crypt::CBC;
  use Crypt::Cipher::Blowfish;

  my $key = ...; # length has to be valid key size for this cipher
  my $iv = ...;  # 16 bytes
  my $cbc = Crypt::CBC->new( -cipher=>Cipher::Blowfish, -key=>$key, -iv=>$iv );
  my $ciphertext = $cbc->encrypt("secret data");



DESCRIPTION

This module implements the Blowfish cipher. Provided interface is compliant with Crypt::CBC module.

<B>BEWARE:B> This module implements just elementary one-block-(en|de)cryption operation - if you want to encrypt/decrypt generic data you have to use some of the cipher block modes - check for example Crypt::Mode::CBC, Crypt::Mode::CTR or Crypt::CBC (which will be slower).

METHODS

    new



 $c = Crypt::Cipher::Blowfish->new($key);
 #or
 $c = Crypt::Cipher::Blowfish->new($key, $rounds);



    encrypt



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



    decrypt



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



    keysize



  $c->keysize;
  #or
  Crypt::Cipher::Blowfish->keysize;
  #or
  Crypt::Cipher::Blowfish::keysize;



    blocksize



  $c->blocksize;
  #or
  Crypt::Cipher::Blowfish->blocksize;
  #or
  Crypt::Cipher::Blowfish::blocksize;



    max_keysize



  $c->max_keysize;
  #or
  Crypt::Cipher::Blowfish->max_keysize;
  #or
  Crypt::Cipher::Blowfish::max_keysize;



    min_keysize



  $c->min_keysize;
  #or
  Crypt::Cipher::Blowfish->min_keysize;
  #or
  Crypt::Cipher::Blowfish::min_keysize;



    default_rounds



  $c->default_rounds;
  #or
  Crypt::Cipher::Blowfish->default_rounds;
  #or
  Crypt::Cipher::Blowfish::default_rounds;



SEE ALSO

o CryptX, Crypt::Cipher
o <http://en.wikipedia.org/wiki/Blowfish_(cipher)>
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perl v5.20.3 CRYPT::CIPHER::BLOWFISH (3) 2015-11-28

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