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lib::Digest::HMAC

Section: User Contributed Perl Documentation (3)
Updated: perl 5.005, patch 03
Index 

NAME

Digest::HMAC - Keyed-Hashing for Message Authentication 

SYNOPSIS

 # Functional style use Digest::HMAC qw(hmac hmac_hex); $digest = hmac($data, $key, \&myhash); print hmac_hex($data, $key, \&myhash);

 # OO style use Digest::HMAC; $hmac = Digest::HMAC->new($key, "Digest::MyHash");

 $hmac->add($data); $hmac->addfile(*FILE);

 $digest = $hmac->digest; $digest = $hmac->hexdigest; $digest = $hmac->b64digest;

 

DESCRIPTION

HMAC is used for message integrity checks between two parties thatshare a secret key, and works in combination with some other Digestalgorithm, usually MD5 or SHA-1. The HMAC mechanism is described inRFC 2104.

HMAC follow the common Digest:: interface, but the constructortakes the secret key and the name of some other simple Digest::as argument. 

SEE ALSO

the Digest::HMAC_MD5 manpage, the Digest::HMAC_SHA1 manpage

RFC 2104 

AUTHORS

Graham Barr <gbarr@ti.com>, Gisle Aas <gisleAATTaas.no>

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Index

NAME

SYNOPSIS

DESCRIPTION

SEE ALSO

AUTHORS

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