International Civil Aviation Organization Public Key Directory

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.

The ICAO PKD content is open to the public, and can be downloaded for free at https://download.pkd.icao.int/.[1]

Participants

The United Nations became the first non-state participant in October 2012, enabling issuing of e-UNLP, the electronic form of the United Nations laissez-passer.[2]

In December 2014, ICAO reported the PKD as having 45 participants.[3]

In 2015 the German Bundesdruckerei (German Federal Printing Office) won the request for tender of the ICAO to provide the ICAO PKD.[4]

In July 2017, ICAO reported the PKD as having 58 participants.[3]

As of November 2017, 60 participants were part of the ICAO PKD, with the European Union being the 60th member and at the same time the second non-state participant.[3]

As of April 2025, 104 participants were part of the ICAO PKD.[3]

Participation Fees

Each ICAO PKD participant needs to pay a one-time registration fee and annual fees. The registration fee was USD 56,000 at first, and was reduced to USD 15,900 since March 2015.[5] The annual fee comprises two components: the ICAO portion and the PKD Operator portion. Every participant pays the same amount of annual fees.

PKD Fee Schedules
YearNumber of participantsAnnual fee per participant (in USD)Ref
202510020795.00[6]
20248822680.46[7]
20238223745.45[8]
20228025096.25[9]
20217126282[10]
20206328515.71[11]
20196229853.23[12]
20186031755.00[13]
20175434352[14]
20164539162[5]
20154543642[15]
20143945005[16]
20133558059[17]

See also

References

  1. ↑ "Frequently Asked Questions". ICAO. Retrieved 11 March 2024.
  2. ↑ "UN Imports PKD Country Signing Certificate". International Civil Aviation Organization. October 2012.
  3. 1 2 3 4 "ICAO PKD Participants". International Civil Aviation Organization. Retrieved 2025-07-30.
  4. ↑ "Bundesdruckerei macht das Reisen weltweit sicherer". Bundesdruckerei GmbH. July 2015. Archived from the original on 2020-06-15. Retrieved 2015-07-03.
  5. 1 2 "PKD Fee Schedule 2016" (PDF).
  6. ↑ "PKD Fee Schedule 2025" (PDF).
  7. ↑ "PKD Fee Schedule 2024" (PDF).
  8. ↑ "PKD Fee Schedule 2023" (PDF).
  9. ↑ "PKD Fee Schedule 2022" (PDF).
  10. ↑ "PKD Fee Schedule 2021" (PDF).
  11. ↑ "PKD Fee Schedule 2020" (PDF).
  12. ↑ "PKD Fee Schedule 2019" (PDF).
  13. ↑ "PKD Fee Schedule 2018" (PDF).
  14. ↑ "PKD Fee Schedule 2017" (PDF).
  15. ↑ "PKD Fee Schedule 2015" (PDF).
  16. ↑ "PKD Fee Schedule 2014" (PDF).
  17. ↑ "PKD Fee Schedule 2013" (PDF).