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RFC 10007: Clarification to Processing Key Usage Values During Certificate Revocation List (CRL) Validation

In plain English — editorial summary, not part of the RFC

RFC 5280 defines the profile of X.509 certificates and Certificate Revocation Lists (CRLs) for use in the Internet. Section 4.2.1.3 of RFC 5280 requires CRL issuer certificates to contain the keyUsage extension with the cRLSign bit asserted. However, the CRL validation algorithm specified in Section 6.3 of RFC 5280 does not explicitly include a corresponding check for the presence of the keyUsage certificate extension. This document updates RFC 5280 to require that check.

Document record

Document ID
RFC10007
Published
June 2026
Authors
C. Bonnell; T. Ito; T. Okubo
Status
PROPOSED STANDARD
Stream
IETF
Area
sec
Pages
6
Also known as
—
Updates:
RFC 5280

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/10007-clarification-to-processing-key-usage-values-during-certificate-revocation-list