X.509 Certificate Extended Key Usage (EKU) for Configuration, Updates, and Safety-Critical Communication
RFC 9809
Revision differences
Document history
| Date | By | Action |
|---|---|---|
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2026-05-20
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(System) | Changed metadata: changed keywords to '['Industrial Automation', 'ERJU', 'extended key usage', 'extension', 'PKI']' from '[]' |
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2026-05-20
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(System) | Metadata update from RFC Editor |
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2026-05-20
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(System) | Changed author "D. Goltzsche": changed name from "David Goltzsche" to "D. Goltzsche", cleared country (was "Germany") |
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2026-05-20
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(System) | Changed author "H. Brockhaus": changed name from "Hendrik Brockhaus" to "H. Brockhaus", cleared country (was "Germany") |
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2026-05-20
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(System) | Metadata update from RFC Editor |
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2025-07-11
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(System) | Received changes through RFC Editor sync (created document RFC 9809, created became rfc relationship between draft-ietf-lamps-automation-keyusages and RFC 9809, set title to 'X.509 … Received changes through RFC Editor sync (created document RFC 9809, created became rfc relationship between draft-ietf-lamps-automation-keyusages and RFC 9809, set title to 'X.509 Certificate Extended Key Usage (EKU) for Configuration, Updates, and Safety-Critical Communication', set abstract to 'RFC 5280 defines the Extended Key Usage (EKU) extension and specifies several extended key purpose identifiers (KeyPurposeIds) for use with that extension in X.509 certificates. This document defines KeyPurposeIds for general-purpose and trust anchor configuration files, for software and firmware update packages, and for safety-critical communication to be included in the EKU extension of X.509 v3 public key certificates.', set pages to 12, set standardization level to Proposed Standard, added RFC published event at 2025-07-11) |
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2025-07-11
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(System) | RFC published |