Toby Inkster > RDF-Crypt > RDF::Crypt::Role::DoesSign

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NAME ^

RDF::Crypt::Role::DoesSign - signing methods

DESCRIPTION ^

Object Methods

sign_model($model)

Given an RDF::Trine::Model, returns a signature as a string.

The model is converted to a canonicalised N-Triples representation (see RDF::Trine::Serializer::NTriples::Canonical) with any triples that cannot be canonicalised being truncated. This representation is then signed using an MD5 digest, and the resulting binary signature encoded using base64.

generate_manifest($webid, \@urls)

Given a WebID that people can use to recover your public key, and a list of URLs that need signing, signs each and returns an RDF::Trine::Model containing the results of processing. This can be serialised as, say, Turtle to act as an endorsement for a bunch of RDF graphs.

sign_embed_turtle($turtle, $baseuri)

Parses the given Turtle into a model, generates a signature for that and then returns the original Turtle with the signature embedded as a comment. This allows the signature to sit in the same file as the data itself.

The base URI is used to resolve any relative URI references. Note that if a different base URI is provided when verifying the signature, this may cause verification to fail. The base URI is optional.

sign_embed_rdfxml($xml, $baseuri)

As per sign_embed_turtle, but RDF/XML.

sign_embed_rdfa($html, $baseuri, \%config)

Similar to sign_embed_turtle and sign_embed_rdfxml. The base URI is required. A set of configuration options may be provided, which will be passed along to RDF::RDFa::Parser's constructor.

Rather than storing the signature as an XML/HTML comment, the signature is stored on the root element as an attribute.

sign_text($str)

Signs a literal string which may or may not have anything to do with RDF.

Required Methods

This role does not implement these methods, but requires classes to implement them instead:

sign_bytes($str)

Generates a signature for an octet string.

SIG_MARK

Returns a string used as a marker for signatures within serialised RDF.

SEE ALSO ^

RDF::Crypt, RDF::Crypt::Signer.

BUGS ^

Please report any bugs to http://rt.cpan.org/.

AUTHOR ^

Toby Inkster <tobyink@cpan.org>.

COPYRIGHT ^

Copyright 2010, 2012 Toby Inkster

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

DISCLAIMER OF WARRANTIES ^

THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

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