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 Master List, prepared in conformance to ICAO Doc9303 specifications, is intended as an efficient means to distribute CSCA certificates that can be used for e-passport verification. Distribution of the Master List is intended to be complementary to bilateral distribution. Furthermore, its publication complements the publication of Master Lists by other entities and states in the PKD and elsewhere.
The Master List is digitally signed using an ICAO Master List Signer Certificate that is itself signed by the United Nations CSCA, both of which are included in the Master List in accordance with ICAO Doc9303. ICAO can provide the UN CSCA public key certificate to States upon request.
Master List Contents
Inclusion of certificates in the Master List is based on the ICAO Master List policy and procedure, available here.
The Master List currently contains 265 certificates from ICAO PKD participants. This version was issued in September 2020.
Availability
The ICAO Master List is available for download at the bottom of this page, subject to the terms and conditions outlined herein. It is also part of the ICAO PKD, available for download by ICAO PKD participants. The contents of the PKD can also be downloaded, subject to terms and conditions,
here.
Conditions for use of the ICAO Master List
Any receiving state or entity making use of the Master List must determine its own policies for establishing trust in the certificates contained on the list.
The Master List may contain certificates that are not conformant with existing technical standards for such certificates. No responsibility is assumed for issues that may arise due to such non-conformance.
Updates
The ICAO Master List will be updated at 3-monthly intervals as appropriate. If you wish to be notified of new Master Lists being made available, please subscribe to our notification e-mail list by providing your email address to
icao-pkd@icao.int.