CONTENTS

• NAME
• SYNOPSIS
• SYNOPSIS (HMAC-SHA)
• ABSTRACT
• DESCRIPTION
• UNICODE AND SIDE EFFECTS
• NIST STATEMENT ON SHA-1
• PADDING OF BASE64 DIGESTS
• EXPORT
• EXPORTABLE FUNCTIONS
• SEE ALSO
• AUTHOR
• ACKNOWLEDGMENTS
• COPYRIGHT AND LICENSE

#NAME

Digest::SHA - Perl extension for SHA-1/224/256/384/512

#SYNOPSIS

In programs:

	# Functional interface

use Digest::SHA qw(sha1 sha1_hex sha1_base64 ...);

$digest = sha1($data);
$digest = sha1_hex($data);
$digest = sha1_base64($data);

$digest = sha256($data);
$digest = sha384_hex($data);
$digest = sha512_base64($data);

	# Object-oriented

use Digest::SHA;

$sha = Digest::SHA->new($alg);

$sha->add($data);		# feed data into stream

$sha->addfile(*F);
$sha->addfile($filename);

$sha->add_bits($bits);
$sha->add_bits($data, $nbits);

$sha_copy = $sha->clone;	# make copy of digest object
$state = $sha->getstate;	# save current state to string
$sha->putstate($state);		# restore previous $state

$digest = $sha->digest;		# compute digest
$digest = $sha->hexdigest;
$digest = $sha->b64digest;

From the command line:

$ shasum files

$ shasum --help

#