publishPublicSigningKey method
Publishes this client's signing keys at publicSigningKeyUri, if what is there is not already what it holds.
This is the only writer for an _apsk that no enroll:request can
carry. A client whose keyfile names no enrollment publishes under
primary — the name the atServer answers a bare pkam: with — and has
no id of its own to send an enroll:update for, so it writes the record
directly.
value overrides what is published, for the one caller that advertises
a key as retired while the keyfile still holds it active:
publicSigningKeyValue is composed from what the keyfile holds, and a
minter withdraws a key from the advertisement before it files the
withdrawal.
Serialised against every other _apsk write this process makes for this
client — see serialiseApskWrite. The composition happens inside the
lock, so it cannot read a keyfile a mint has not finished writing and
publish the fallback computed from it.
Implementation
Future publishPublicSigningKey({String? value}) => serialiseApskWrite(
atClient, () => publishPublicSigningKeyLocked(value: value));