Installation ssl sha 256 g5 pour paypal

Nous possédons un serveur dédié chez godaddy avec Plesk panel.
Un seul domaine à besoin d'être conforme aux prérogatives de PayPal ci-dessous :

Support SHA-256. PayPal is upgrading SSL certificates on all Live and Sandbox endpoints from SHA-1 to the stronger and more robust SHA-256 algorithm. You will need to update your integration to support certificates using SHA-256.
Discontinue use of the VeriSign G2 Root Certificate. In accordance with industry standards, PayPal will no longer honor secure connections that require the VeriSign G2 Root Certificate for trust validation. Only secure connection requests that are expecting our certificate/trust chain to be signed by the G5 Root Certificate will result in successful secure connections.
For detailed information on these changes, please reference the Merchant Security System Upgrade Guide (localized versions are attached below). For a basic introduction to internet security, we also recommend these short videos on SSL Certificates and Public Key Cryptography.

NOTE: These updates are in response to an industry-wide security upgrade and are not unique to PayPal. They will help secure your website’s interaction with the PayPal website and Application Programming Interfaces (APIs).
To avoid any disruption of service, you must verify that your systems
are ready for this change by June 17, 2016