The ICAO Public Key Directory (PKD) is a central repository for exchanging the information required to authenticate electronic Machine Readable Travel Documents (eMRTDs) such as ePassports, electronic ID cards and Visible Digital Seals.

ICAO PKD ParticipantsList of PKD Participants

The ICAO Master List contains the Country Signing Certificate Authority (CSCA) public key certificates of ICAO PKD members that have been passed to ICAO through diplomatic channels and are therefore trusted by ICAO.

The ICAO PKD (Public Key Directory) data download (the "Service") is an online information service provided by ICAO, subject to your compliance with the Terms and Conditions set forth below.

The International Civil Aviation Organization Public Key Directory (ICAO PKD) is a database maintained by the International Civil Aviation Organization holding national cryptographic keys related to the authentication of e-passport information.

2024年9月24日至26日，第31次國際民航組織公鑰薄委員會會議（以下簡稱“ICAO PKD會議”）作為國際民航組織 (International Civil Aviation Organization，ICAO）PKD委員會的一項世界級官方活動，在中國西安盛大召開。

The ICAO Public Key Directory (PKD) is a central repository for exchanging the information required to authenticate ePassports. The security and facilitation advantages of an ePassport are grounded in the presence of an integrated closed circuit chip.

Who are the current members of ICAO PKD? Currently the ICAO PKD has 54 member states world-wide, of which 29 are OSCE participating States and 5 are OSCE Partners for Co-operation. Over half of OSCE participating States are now members of the ICAO PKD. See Annex 1 for a list, and Annex 2 for a map.

The ICAO PKD is the central platform to manage the world wide exchange of public key certificates needed for the electronic verification of electronic Machine Readable Travel Documents (eMRTDs), other ICAO-specified digitally signed document formats and Certificate Revocation Lists (CRLs).

The ICAO Public Key Directory (PKD) is a central repository for exchanging the information required to authenticate ePassports. The security and facilitation advantages of an ePassport are grounded in the presence of an integrated closed circuit chip.