Since 1st January 2023, FrenchSys has opened a new certificate issuance service to enable secure exchanges between acceptance systems and acquiring servers, as part of the STCA (Secure Transactions Certificate Authority) offer.
Certificates issued by FrenchSys are intended for acceptance and acquiring servers to allow for their authentication to compatible POIs.
This service is open to payment stakeholders:

  • FrenchSys client acquiring banks
  • Merchants of a bank qualified for the STCA service (with a confirmation letter from the bank)
  • Service providers of a merchant’s bank qualified for the STCA service (with a confirmation letter from the bank or merchant).

Certificate Chain

AC Secure Transactions CA SHA-2: The zip file contains the STCA certificates for the root CA and the server CA.
Download the certification chain for the SHA-2 Secure Transactions CA

STCA Certificate Revocation Lists:
Download the revocation lists

Certification Policy

The STCA Certification Policy defines the operating rules for the STCA CA.
AC Secure Transactions CA SHA-2:

Download the version 1.0 of the policy no valid from 01/2025

Download the version 2.0 of the policy valid from 01/2023


Registration files

Certificate representative and Server supervisor enrolment
Download the forms in a zip file

Certificate request

Download the files