Digest::HMAC(3) User Contributed Perl Documentation Digest::HMAC(3)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 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.
The hmac() and hmac_hex() functions and the Digest::HMAC->new() constructor takes an optional $blocksize argument as well. The HMAC
algorithm assumes the digester to hash by iterating a basic compression function on blocks of data and the $blocksize should match the
byte-length of such blocks.
The default $blocksize is 64 which is suitable for the MD5 and SHA-1 digest functions. For stronger algorithms the blocksize probably
needs to be increased.
SEE ALSO
Digest::HMAC_MD5, Digest::HMAC_SHA1
RFC 2104
AUTHORS
Graham Barr <gbarr@ti.com>, Gisle Aas <gisle@aas.no>
perl v5.16.2 2011-07-25 Digest::HMAC(3)
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Digest::HMAC(3) User Contributed Perl Documentation Digest::HMAC(3)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 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.
The hmac() and hmac_hex() functions and the Digest::HMAC->new() constructor takes an optional $blocksize argument as well. The HMAC
algorithm assumes the digester to hash by iterating a basic compression function on blocks of data and the $blocksize should match the
byte-length of such blocks.
The default $blocksize is 64 which is suitable for the MD5 and SHA-1 digest functions. For stronger algorithms the blocksize probably
needs to be increased.
SEE ALSO
Digest::HMAC_MD5, Digest::HMAC_SHA1
RFC 2104
AUTHORS
Graham Barr <gbarr@ti.com>, Gisle Aas <gisle@aas.no>
perl v5.18.2 2011-07-25 Digest::HMAC(3)
Dear Guys ,
Am sorry i ask alot , but i do not know that much about perl , cgi , MD5 !
now i installed MD5 and Digest MD5 to my solaries 7 sparc machine .
when i execute the command :
$perl Makefile.PL
i get the follwoing error message ,, please tell me how to fix it , i need... (11 Replies)
Hi all,
I need to calculate MAC value using HMAC-SHA256 algorithm with a message and a key.
Is there any Linux APIs/utilities already exist for HMAC-SHA256?
Thanks,
Amio (3 Replies)
I’m trying to use wget 1.13.4 from a command line to access a web page using Digest Authentication on a Tomcat server, and I keep getting HTTP/1.1 401 Unauthorized response. Below is my code and the response. Any suggestions would be appreciated.
wget --debug --server-response --user-agent=""... (5 Replies)
Received a vulnerability - SSH INSECURE HMAC ALGORITHMS ENABLED.
The solution was to Disable any 96-bit HMAC Algorithms. Disable any MD5-based HMAC Algorithms.
Can someone please tell me how to disable in AIX 5.3?
Thanks,
Sudo (1 Reply)