/ 
HTTP-PublicKeyPins-0.02
/ HTTP::PublicKeyPins

NAME

HTTP::PublicKeyPins - Generate RFC 7469 HTTP Public Key Pin (HPKP) header values

VERSION

Version 0.02

SYNOPSIS

Make it more difficult for the bad guys to Man-In-The-Middle your users TLS sessions

use HTTP::Headers();
use HTTP::PublicKeyPins qw( pin_sha256 );

...
my $h = HTTP::Headers->new();
$h->header( 'Public-Key-Pins-Report-Only',
        'pin-sha256="'
      . pin_sha256('/etc/pki/tls/certs/example.pem')
      . '"; pin-sha256="'
      . pin_sha256('/etc/pki/tls/certs/backup.pem')
      . '"; report-uri="https://example.com/pkp-report.pl' );

...

OR

perl -MHTTP::PublicKeyPins=pin_sha256 -e 'print pin_sha256("example.pem") . "\n";'

DESCRIPTION

This module allows the calculation of RFC 7469 HTTP Public Key Pin header values. This can be used to verify your TLS session to a remote server has not been hit by a Man-In-The-Middle attack OR to instruct your users to ignore any TLS sessions to your web service that does not use your Public Key

EXPORT

pin_sha256

This function accepts the path to a certificate. It will load the public key from the certificate and prepare the appropriate value for the pin_sha256 parameter of the Public-Key-Pins value.

SUBROUTINES/METHODS

None. This module only has the one exported function.

DIAGNOSTICS

None. Exceptions may be thrown by modules in the Dependencies below;

CONFIGURATION AND ENVIRONMENT

HTTP::PublicKeyPins requires no configuration files or environment variables.

DEPENDENCIES

HTTP::PublicKeyPins requires the following non-core modules

 Crypt::OpenSSL::X509;
 Crypt::OpenSSL::RSA;
 Digest

INCOMPATIBILITIES

None known.

SEE ALSO

L<http://tools.ietf.org/html/rfc7469>

AUTHOR

David Dick, <ddick at cpan.org>

BUGS AND LIMITATIONS

Please report any bugs or feature requests to bug-http-publickeypins at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=HTTP-PublicKeyPins. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc HTTP::PublicKeyPins

You can also look for information at:

LICENSE AND COPYRIGHT

Copyright 2015 David Dick.

This program is free software; you can redistribute it and/or modify it under the terms of the the Artistic License (2.0). You may obtain a copy of the full license at:

http://www.perlfoundation.org/artistic_license_2_0

Any use, modification, and distribution of the Standard or Modified Versions is governed by this Artistic License. By using, modifying or distributing the Package, you accept this license. Do not use, modify, or distribute the Package, if you do not accept this license.

If your Modified Version has been derived from a Modified Version made by someone other than you, you are nevertheless required to ensure that your Modified Version complies with the requirements of this license.

This license does not grant you the right to use any trademark, service mark, tradename, or logo of the Copyright Holder.

This license includes the non-exclusive, worldwide, free-of-charge patent license to make, have made, use, offer to sell, sell, import and otherwise transfer the Package with respect to any patent claims licensable by the Copyright Holder that are necessarily infringed by the Package. If you institute patent litigation (including a cross-claim or counterclaim) against any party alleging that the Package constitutes direct or contributory patent infringement, then this Artistic License to you shall terminate on the date that such litigation is filed.

Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.