This is your builtin OpenPGP implementation: https://www.rnpgp.org/software/rnp/
- Has Thunderbird with RNP ever been audited? By whom? When will it be again?
- Here https://www.rnpgp.org/specs/draft-ribose-openpgp-sca/ it is written "SCA Extensions" - which is part of RNP - "enables OpenPGP to be used in compliance with SCA regulations within China"; does it have backdoors, or weaknesses, allowing Chinese authorities and maybe others to decrypt and read users' contents? In case: is this a threat for other users?
Nebbia è libera, antifascista, antisessista e antimilitarista