NAME
Template::Plugin::Digest::SHA2 - TT2 interface to the SHA2 Algorithm
SYNOPSIS
[% USE Digest.SHA2 -%]
[% checksum = content FILTER sha2 -%]
[% checksum = content FILTER sha2_hex -%]
[% checksum = content FILTER sha2_base64 -%]
[% checksum = content.sha2 -%]
[% checksum = content.sha2_hex -%]
[% checksum = content.sha2_base64 -%]DESCRIPTION
The Digest.SHA2 Template Toolkit plugin provides access to the NIST SHA-1 algorithm via the Digest::SHA2 module. It is used like a plugin but installs filters and vmethods into the current context.
When you invoke
[% USE Digest.SHA2 %]the following filters (and vmethods of the same name) are installed into the current context:
sha2-
Calculate the SHA-2 digest of the input, and return it in binary form.
sha2_hex-
Same as
sha2, but will return the digest in hexadecimal form. The returned string will only contain characters from this set: '0'..'9' and 'a'..'f'. sha2_base64-
Same as
sha2, but will return the digest as a base64 encoded string. The returned string will only contain characters from this set: 'A'..'Z', 'a'..'z', '0'..'9', '+' and '/'.
As the filters are also available as vmethods the following are all equivalent:
FILTER sha2_hex; content; END;
content FILTER sha2_hex;
content.sha2_base64;Bit length
By default the checksum is produced with a 256 bit length string. The supported bit lengths are 256, 384 and 512, which are set as follows:
[% USE Digest.SHA2(256) %]
[% USE Digest.SHA2(384) %]
[% USE Digest.SHA2(512) %]SEE ALSO
AUTHOR
Barbie <barbie@cpan.org>COPYRIGHT & LICENSE
Copyright (C) 2014 Barbie for Miss Barbell Productions.
This distribution is free software; you can redistribute it and/or modify it under the Artistic Licence v2.