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CryptX-0.085
River stage three • 72 direct dependents • 283 total dependents
/ Crypt::Cipher::RC5

NAME

Crypt::Cipher::RC5 - Symmetric cipher RC5, key size: 64-1024 bits

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('RC5');
my $ciphertext = $cbc->encrypt("secret data", $key, $iv);
### example 2 (slower)
use Crypt::CBC;
use Crypt::Cipher::RC5;
my $key = '...'; # length has to be valid key size for this cipher
my $iv = '...';  # 16 bytes
my $cbc = Crypt::CBC->new( -cipher=>'Cipher::RC5', -key=>$key, -iv=>$iv );
my $ciphertext = $cbc->encrypt("secret data");

DESCRIPTION

This module implements the RC5 cipher. Provided interface is compliant with Crypt::CBC module.

BEWARE: 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


            

              
              
$c = Crypt::Cipher::RC5->new($key);
#or
$c = Crypt::Cipher::RC5->new($key, $rounds);

encrypt


            

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

decrypt


            

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

keysize


            

              
              
$c->keysize;
#or
Crypt::Cipher::RC5->keysize;
#or
Crypt::Cipher::RC5::keysize;

blocksize


            

              
              
$c->blocksize;
#or
Crypt::Cipher::RC5->blocksize;
#or
Crypt::Cipher::RC5::blocksize;

max_keysize


            

              
              
$c->max_keysize;
#or
Crypt::Cipher::RC5->max_keysize;
#or
Crypt::Cipher::RC5::max_keysize;

min_keysize


            

              
              
$c->min_keysize;
#or
Crypt::Cipher::RC5->min_keysize;
#or
Crypt::Cipher::RC5::min_keysize;

default_rounds


            

              
              
$c->default_rounds;
#or
Crypt::Cipher::RC5->default_rounds;
#or
Crypt::Cipher::RC5::default_rounds;

SEE ALSO