Binary package “dirmngr” in ubuntu focal

GNU privacy guard - network certificate management service

 dirmngr is a server for managing and downloading OpenPGP and X.509
 certificates, as well as updates and status signals related to those
 certificates. For OpenPGP, this means pulling from the public
 HKP/HKPS keyservers, or from LDAP servers. For X.509 this includes
 Certificate Revocation Lists (CRLs) and Online Certificate Status
 Protocol updates (OCSP). It is capable of using Tor for network
 dirmngr is used for network access by gpg, gpgsm, and dirmngr-client,
 among other tools. Unless this package is installed, the parts of
 the GnuPG suite that try to interact with the network will fail.