FIRST uses Pretty Good Privacy (PGP) encryption for cryptographic privacy in communications with members. In order to provide open channels in which the members can also encrypt messages to the FIRST Secretariat, board members and other teams, FIRST publishes public keys on the public and members' only websites:
0x7F8C656513F6AD57
7735 1149 3722 9A3C 2129 8903 7F8C 6565 13F6 AD57
These keys are available for FIRST members only. FIRST members have access to other members' and teams' public PGP key.
Martijn van der Heide of ETDA has written and shared the following guides:
An Introduction to PGP/GnuPG
PGP/GnuPG Key Signing Party: Practical Guidance to Joining the Web of Trust