International Airport Review
The International Civil Aviation Organization has released its first Health Master List, a global directory of public keys required for authentication of health credentials.
The International Air Transport Association (IATA) has welcomed the creation by the International Civil Aviation Organization (ICAO) of a global directory of public keys required for authentication of health credentials. The directory, called the Health Master List (HML), will make a significant contribution to the global recognition and verification (interoperability) of government issued health credentials.
A public key enables third parties to verify that a QR code displayed on a health credential is authentic and valid. The HLM is a compilation of public key certificates signed by ICAO and regularly updated as more health proofs are issued and new public keys are required. Its implementation will ease the global recognition of health credentials outside of the jurisdiction in which they were issued.