Crypt::Mac::PMAC(3)   User Contributed Perl Documentation  Crypt::Mac::PMAC(3)


NAME
       Crypt::Mac::PMAC - Message authentication code PMAC

SYNOPSIS
          ### Functional interface:
          use Crypt::Mac::PMAC qw( pmac pmac_hex );

          # calculate MAC from string/buffer
          $pmac_raw  = pmac($cipher_name, $key, 'data buffer');
          $pmac_hex  = pmac_hex($cipher_name, $key, 'data buffer');
          $pmac_b64  = pmac_b64($cipher_name, $key, 'data buffer');
          $pmac_b64u = pmac_b64u($cipher_name, $key, 'data buffer');

          ### OO interface:
          use Crypt::Mac::PMAC;

          $d = Crypt::Mac::PMAC->new($cipher_name, $key);
          $d->add('any data');
          $d->addfile('filename.dat');
          $d->addfile(*FILEHANDLE);
          $result_raw  = $d->mac;     # raw bytes
          $result_hex  = $d->hexmac;  # hexadecimal form
          $result_b64  = $d->b64mac;  # Base64 form
          $result_b64u = $d->b64umac; # Base64 URL Safe form

DESCRIPTION
       Provides an interface to the PMAC message authentication code (MAC)
       algorithm.

EXPORT
       Nothing is exported by default.

       You can export selected functions:

         use Crypt::Mac::PMAC qw(pmac pmac_hex );

       Or all of them at once:

         use Crypt::Mac::PMAC ':all';

FUNCTIONS
   pmac
       Logically joins all arguments into a single string, and returns its
       PMAC message authentication code encoded as a binary string.

        $pmac_raw = pmac($cipher_name, $key, 'data buffer');
        #or
        $pmac_raw = pmac($cipher_name, $key, 'any data', 'more data', 'even more data');

   pmac_hex
       Logically joins all arguments into a single string, and returns its
       PMAC message authentication code encoded as a hexadecimal string.

        $pmac_hex = pmac_hex($cipher_name, $key, 'data buffer');
        #or
        $pmac_hex = pmac_hex($cipher_name, $key, 'any data', 'more data', 'even more data');

   pmac_b64
       Logically joins all arguments into a single string, and returns its
       PMAC message authentication code encoded as a Base64 string.

        $pmac_b64 = pmac_b64($cipher_name, $key, 'data buffer');
        #or
        $pmac_b64 = pmac_b64($cipher_name, $key, 'any data', 'more data', 'even more data');

   pmac_b64u
       Logically joins all arguments into a single string, and returns its
       PMAC message authentication code encoded as a Base64 URL Safe string
       (see RFC 4648 section 5).

        $pmac_b64url = pmac_b64u($cipher_name, $key, 'data buffer');
        #or
        $pmac_b64url = pmac_b64u($cipher_name, $key, 'any data', 'more data', 'even more data');

METHODS
   new
        $d = Crypt::Mac::PMAC->new($cipher_name, $key);

   clone
        $d->clone();

   reset
        $d->reset();

   add
        $d->add('any data');
        #or
        $d->add('any data', 'more data', 'even more data');

   addfile
        $d->addfile('filename.dat');
        #or
        $d->addfile(*FILEHANDLE);

   mac
        $result_raw = $d->mac();

   hexmac
        $result_hex = $d->hexmac();

   b64mac
        $result_b64 = $d->b64mac();

   b64umac
        $result_b64url = $d->b64umac();

SEE ALSO
       o   CryptX

       o   <https://en.wikipedia.org/wiki/PMAC_%28cryptography%29>

perl v5.40.0                      2024-10-20               Crypt::Mac::PMAC(3)