{"id":1061,"date":"2015-09-29T17:51:32","date_gmt":"2015-09-29T17:51:32","guid":{"rendered":"http:\/\/www.withinweb.com\/info\/?p=1061"},"modified":"2015-09-29T17:51:32","modified_gmt":"2015-09-29T17:51:32","slug":"paypal-upgrade-to-certificate-which-may-affect-ipn-based-programs-and-scripts","status":"publish","type":"post","link":"https:\/\/www.withinweb.com\/info\/paypal-upgrade-to-certificate-which-may-affect-ipn-based-programs-and-scripts\/","title":{"rendered":"PayPal upgrade to Certificate which may affect IPN based programs and scripts"},"content":{"rendered":"

There appears to be quite a bit of chat about the changes that PayPal are making to their system to allow SHA-256 during September 2015. This is to do with improving the SSL (Secure Socket Layer) security and is used over https systems. <\/p>\n

A part of their message is: <\/p>\n

“PayPal is upgrading the certificate for www.paypal.com to SHA-256. This endpoint is also used by merchants using the Instant Payment Notification (IPN) product.”<\/p>\n

PayPal IPN can be used over non SSL, that is using http – that is why many developers like it because it does not need SSL certificates on their web servers which can be expensive especially if you are a small trader. You don’t really want to have to purchase certificates if you are selling a small number of items.<\/p>\n

So the kind of systems that are affected are those that use https and which use PayPal API to provide secure connections from your server to the PayPal server.<\/p>\n

IPN over plain http will be supported as it currently is, so you will still be able to supply a plain http link to your IPN listener script. However if your IPN listener script is sSL\/TLS enabled it will have to be SHA-256 complaint and your listening server will need to be able to accept SHA-256 certificates.<\/p>\n

So do the changes affect the scripts on www.Withinweb.com that use IPN? Well the answer to that is NO, it does not affect the scripts at all.<\/p>\n

PHP-eSeller, PHP-SecureArea and PHP-KeyCodes use a simple method of handshake between PayPal to verify that the transaction has taken place and hence no modifications are need to the applications.<\/p>\n","protected":false},"excerpt":{"rendered":"

There appears to be quite a bit of chat about the changes that PayPal are making to their system to allow SHA-256 during September 2015. This is to do with improving the SSL (Secure Socket Layer) security and is used…<\/span><\/p>\n

Read more PayPal upgrade to Certificate which may affect IPN based programs and scripts<\/span> ›<\/span><\/a><\/div>\n

<\/p>\n","protected":false},"author":53,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19,3,5,23,4],"tags":[],"class_list":["post-1061","post","type-post","status-publish","format-standard","hentry","category-paypal","category-php-eseller","category-php-keycodes","category-php-register","category-php-securearea"],"yoast_head":"\nPayPal upgrade to Certificate which may affect IPN based programs and scripts - PHP Web Applications<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.withinweb.com\/info\/paypal-upgrade-to-certificate-which-may-affect-ipn-based-programs-and-scripts\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PayPal upgrade to Certificate which may affect IPN based programs and scripts - PHP Web Applications\" \/>\n<meta property=\"og:description\" content=\"There appears to be quite a bit of chat about the changes that PayPal are making to their system to allow SHA-256 during September 2015. 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