Digest::SHA1 - Perl interface to the SHA-1 Algorithm
# Functional style use Digest::SHA1 qw(sha1 sha1_hex sha1_base64); $digest = sha1($data); $digest = sha1_hex($data); $digest = sha1_base64($data); # OO style use Digest::SHA1; $ctx = Digest::SHA1->new; $ctx->add($data); $ctx->addfile(*FILE); $digest = $ctx->digest; $digest = $ctx->hexdigest; $digest = $ctx->b64digest;
The Digest::SHA1 module allows you to use the NIST SHA-1 message digest algorithm from within Perl programs. The algorithm takes as input a message of arbitrary length and produces as output a 160-bit "fingerprint" or "message digest" of the input.
Digest::SHA1
The Digest::SHA1 module provide a procedural interface for simple use, as well as an object oriented interface that can handle messages of arbitrary length and which can read files directly.
A binary digest will be 20 bytes long. A hex digest will be 40 characters long. A base64 digest will be 27 characters long.
The following functions can be exported from the Digest::SHA1 module. No functions are exported by default.
This function will concatenate all arguments, calculate the SHA-1 digest of this "message", and return it in binary form.
Same as sha1(), but will return the digest in hexadecimal form.
Same as sha1(), but will return the digest as a base64 encoded string.
The Digest::SHA1 module provide the standard Digest OO-interface. The constructor looks like this:
Digest
The constructor returns a new Digest::SHA1 object which encapsulate the state of the SHA-1 message-digest algorithm. You can add data to the object and finally ask for the digest using the methods described in Digest.
Digest, Digest::HMAC_SHA1, Digest::MD5
http://www.itl.nist.gov/fipspubs/fip180-1.htm
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Copyright 1999 Gisle Aas. Copyright 1997 Uwe Hollerbach.
Peter C. Gutmann, Uwe Hollerbach <uh@alumni.caltech.edu>, Gisle Aas <gisle@aas.no>
To install Digest::MD5, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Digest::MD5
CPAN shell
perl -MCPAN -e shell install Digest::MD5
For more information on module installation, please visit the detailed CPAN module installation guide.