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Manpages Digest::HMACSection: User Contributed Perl Documentation (3)Updated: perl v5.6.0 Index Return to Main Contents NAMEDigest::HMAC - Keyed-Hashing for Message AuthenticationSYNOPSIS# 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; DESCRIPTIONHMAC is used for message integrity checks between two parties that share a secret key, and works in combination with some other Digest algorithm, usually MD5 or SHA-1. The HMAC mechanism is described in RFC 2104.HMAC follow the common `Digest::' interface, but the constructor takes the secret key and the name of some other simple `Digest::' as argument. SEE ALSOthe Digest::HMAC_MD5 manpage, the Digest::HMAC_SHA1 manpageAUTHORSGraham Barr <gbarr@ti.com>, Gisle Aas <gisle@aas.no>
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