gpg-wks-server 2.2.4-1ubuntu1 (arm64 binary) in ubuntu bionic

 GnuPG is GNU's tool for secure communication and data storage.
 It can be used to encrypt data and to create digital signatures.
 It includes an advanced key management facility and is compliant
 with the proposed OpenPGP Internet standard as described in RFC4880.
 .
 This package provides the GnuPG server for the Web Key Service
 protocol.
 .
 A Web Key Service is a service that allows users to upload keys per
 mail to be verified over https as described in
 https://tools.ietf.org/html/draft-koch-openpgp-webkey-service
 .
 For more information see: https://wiki.gnupg.org/WKS