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Contains BUCKSTOP bit.
Declaration
Description
BUCKSTOP bit means that this key also appears in secret key ring. Signifies the ultimately-trusted "keyring owner". "The buck stops here". This bit is computed from looking at secret key ring. If this bit is set, then all the KeyLegit fields are set to maximum for all the user IDs for this key, and OwnerTrust is also set to ultimate trust.