I-D Action: draft-morrison-ot-command-authority-01.txt
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Internet-Draft draft-morrison-ot-command-authority-01.txt is now available. Title: Consented and Attributable Agent Authority for Operational-Technology Control Actions Author: Blake Morrison Name: draft-morrison-ot-command-authority-01.txt Pages: 14 Dates: 2026-07-22 Abstract: This memo specifies a binding profile by which a control action issued to an operational-technology (OT) or industrial control system on the authority of a software agent is refused unless it carries a verifiable statement of who the agent is, which human principal it acts for, whether that principal consented to this specific action on this specific asset, whether a human authorised the action where the action's risk class requires it, and an append-only record sufficient to attribute the action afterward. The profile does not invent new cryptography or a new identity mechanism. It composes primitives defined elsewhere, DNSSEC-rooted agent discovery, scoped and revocable consent, a human-in-the-loop binding moment, and a provenance-labelled audit record, into a single structure, the Command Authority Envelope, that an OT conduit evaluates and, on any missing or invalid binding, refuses. The profile is availability- first and fails closed on authority, never on safety: it MUST NOT be placed in the trip path of a safety function. The memo maps the profile onto the identification, use-control, and audit requirements that [IEC62443] and [NERCCIP] state but do not give a wire mechanism for. The methods by which a principal's identity is inferred are out of scope by construction. The IETF datatracker status page for this Internet-Draft is: https://datatracker.ietf.org/doc/draft-morrison-ot-command-authority/ There is also an HTMLized version available at: https://datatracker.ietf.org/doc/html/draft-morrison-ot-command-authority-01 A diff from the previous version is available at: https://author-tools.ietf.org/iddiff?url2=draft-morrison-ot-command-authority-01 Internet-Drafts are also available by rsync at: rsync.ietf.org::internet-drafts _______________________________________________ I-D-Announce mailing list -- [email protected] To unsubscribe send an email to [email protected]