pub fn user_key_answer(
control: &Control,
principal: &Principal,
request: Request,
) -> (u32, String)Expand description
The answer to gunnar_crypt::door::VERB (gunnar-user-key, CRYPT-YUBI) for
caller, the session’s own principal: (exit status, stdout). Reads or changes the
caller’s own encryption key only; there is no name to give.