1Digest::HMAC(3) User Contributed Perl Documentation Digest::HMAC(3)
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6 Digest::HMAC - Keyed-Hashing for Message Authentication
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9 # Functional style
10 use Digest::HMAC qw(hmac hmac_hex);
11 $digest = hmac($data, $key, \&myhash);
12 print hmac_hex($data, $key, \&myhash);
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14 # OO style
15 use Digest::HMAC;
16 $hmac = Digest::HMAC->new($key, "Digest::MyHash");
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18 $hmac->add($data);
19 $hmac->addfile(*FILE);
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21 $digest = $hmac->digest;
22 $digest = $hmac->hexdigest;
23 $digest = $hmac->b64digest;
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26 HMAC is used for message integrity checks between two parties that
27 share a secret key, and works in combination with some other Digest
28 algorithm, usually MD5 or SHA-1. The HMAC mechanism is described in
29 RFC 2104.
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31 HMAC follow the common "Digest::" interface, but the constructor takes
32 the secret key and the name of some other simple "Digest::" as argu‐
33 ment.
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36 Digest::HMAC_MD5, Digest::HMAC_SHA1
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38 RFC 2104
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41 Graham Barr <gbarr@ti.com>, Gisle Aas <gisle@aas.no>
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45perl v5.8.8 2001-03-14 Digest::HMAC(3)