Business::PayPal::EWP - Perl extension for PayPal's Encrypted Website Payments

  use Business::PayPal::EWP qw(SignAndEncrypt);
  ...
  my $form=<<EOS;
  cert_id=123ABC
  cmd=_xclick
  business=...
  EOS

  my $cert="/path/to/mycert.crt";
  my $key="/path/to/mycert.key";
  my $ppcert="/path/to/paypalcert.pem";

  my $encrypted=SignAndEncrypt($form,$key,$cert,$ppcert);

  print <<EOF;

  <form action="https://www.paypal.com/cgi-bin/webscr" method="post">
  <input type="hidden" name="cmd" value="_s-xclick" />
  <input type="image" src="https://www.paypal.com/en_US/i/btn/x-click-but23.gif"
  border="0" name="submit" alt="Make payments with PayPal - it's fast, free and
  secure!" /><input type="hidden" name="encrypted" value="$encrypted" /></form>

  EOF

This module wraps the sample C++/C# code which PayPal provides for working with Encrypted Web Payments. It contains a single function, SignAndEncrypt which takes the plaintext form code, private key file, public key file, and PayPal's public certificate, and will return the signed and encrypted code needed by paypal.

  Copyright (c) 2004, 2005 Issac Goldstand E<lt>margol@beamartyr.netE<gt> - All rights reserved.
  Copyright (c) 2009 Thomas Busch (current maintainer)

This library includes code copied from PayPal's sample code. More information about those projects' authors can be found at the respective project websites.

This library is free software. It can be redistributed and/or modified under the same terms as Perl itself.

Net::SSLeay, CGI, Business::PayPal

Also, see PayPal's documentation at http://www.paypal.com/cgi-bin/webscr?cmd=p/xcl/rec/ewp-intro-outside