---
name: "RDF::Crypt::Verifier"
section: "3pm"
platform: "linux"
package: "librdf-crypt-perl"
version: "0.002-3"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/RDF::Crypt::Verifier"
---

# RDF::Crypt::Verifier(3pm)

verifies signed RDF graphs

## NAME

RDF::Crypt::Verifier - verifies signed RDF graphs

## SYNOPSIS

```
 use 5.010;
 use File::Slurp qw< slurp >;
 use RDF::Crypt::Verifier;
 use RDF::TrineX::Functions qw< parse >;

 my $verify = RDF::Crypt::Verifier->new_from_file(
    '/path/to/public-key.pem'
 );

 my $graph      = parse '/path/to/important.ttl';
 my $signature  = slurp '/path/to/important.ttl.sig';

 say "graph is trusted"
   if $v->verify_model($graph, $signature);
```

## DESCRIPTION

A Verifier object is created using an RSA public key. The object can be used to verify signatures for multiple RDF graphs.

### Roles

- •

  RDF::Crypt::Role::WithPublicKeys

- •

  RDF::Crypt::Role::DoesVerify

- •

  RDF::Crypt::Role::StandardSignatureMarkers

- •

  RDF::Crypt::Role::ToString

## 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.