It is expected to be in effect before the. The passport will require an application on a smartphone. Travelers can connect the passport application with their travel provider or upload their itinerary. The app provides guidance on the verifications they need to travel, such as obtaining a negative COVID test.
Once these steps are completed and the results are accepted, the traveler will receive a QR code or other proof that it is safe to fly. For digital vaccine passports to be effective, they must provide user privacy and data security. One way to do this is with public key infrastructure (PKI) technology, which allows the vaccine passport to be digitally signed to show which health authority issued it and to make the content tamper-proof. This works whether your vaccination passport is printed as a QR code on paper, or if you carry it on your smartphone or as part of an application.
The best-designed vaccine passports contain only minimal personal information to identify the holder and are only communicated to validate the PKI-based signature, rather than transmitting passport details. The best plans take privacy into account, so information on vaccination status is fully under the holder's control and should not be used for monitoring or aggregation. Different groups, such as the EU and the WHO, are working to create international standards for the interoperability of different passport systems for vaccines. The global passport system took 50 years to create and, with the added need for privacy and security in digital passports for vaccines, it could be some time before a global digital passport for vaccines becomes available, at which point it could simply serve to replace the Carte Jaune.