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digest::file(3pm) [osx man page]

Digest::file(3pm)					 Perl Programmers Reference Guide					 Digest::file(3pm)

Digest::file - Calculate digests of files SYNOPSIS
# Poor mans "md5sum" command use Digest::file qw(digest_file_hex); for (@ARGV) { print digest_file_hex($_, "MD5"), " $_ "; } DESCRIPTION
This module provide 3 convenience functions to calculate the digest of files. The following functions are provided: digest_file( $file, $algorithm, [$arg,...] ) This function will calculate and return the binary digest of the bytes of the given file. The function will croak if it fails to open or read the file. The $algorithm is a string like "MD2", "MD5", "SHA-1", "SHA-512". Additional arguments are passed to the constructor for the implementation of the given algorithm. digest_file_hex( $file, $algorithm, [$arg,...] ) Same as digest_file(), but return the digest in hex form. digest_file_base64( $file, $algorithm, [$arg,...] ) Same as digest_file(), but return the digest as a base64 encoded string. SEE ALSO
Digest perl v5.16.2 2012-08-26 Digest::file(3pm)

Check Out this Related Man Page

SHA1(3) 						User Contributed Perl Documentation						   SHA1(3)

Digest::SHA1 - Perl interface to the SHA-1 Algorithm SYNOPSIS
# 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 = $ctx->b64digest; DESCRIPTION
The "Digest::SHA1" module allows you to use the NIST SHA-1 message digest algorithm from within Perl programs. The algorithm takes as input a message of arbitrary length and produces as output a 160-bit "fingerprint" or "message digest" of the input. The "Digest::SHA1" module provide a procedural interface for simple use, as well as an object oriented interface that can handle messages of arbitrary length and which can read files directly. A binary digest will be 20 bytes long. A hex digest will be 40 characters long. A base64 digest will be 27 characters long. FUNCTIONS
The following functions can be exported from the "Digest::SHA1" module. No functions are exported by default. sha1($data,...) This function will concatenate all arguments, calculate the SHA-1 digest of this "message", and return it in binary form. sha1_hex($data,...) Same as sha1(), but will return the digest in hexadecimal form. sha1_base64($data,...) Same as sha1(), but will return the digest as a base64 encoded string. METHODS
The "Digest::SHA1" module provide the standard "Digest" OO-interface. The constructor looks like this: $sha1 = Digest->new('SHA-1') $sha1 = Digest::SHA1->new 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. SEE ALSO
Digest, Digest::HMAC_SHA1, Digest::MD5 COPYRIGHT
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. Copyright 1999-2001 Gisle Aas. Copyright 1997 Uwe Hollerbach. AUTHORS
Peter C. Gutmann, Uwe Hollerbach <>, Gisle Aas <> perl v5.8.0 2001-12-30 SHA1(3)
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