RFC 9925: Unsigned X.509 Certificates
In plain English — editorial summary, not part of the RFC
This document defines a placeholder X.509 signature algorithm that may be used in contexts where the consumer of the certificate is not expected to verify the signature. As part of this, it updates RFC 5280.
Document record
- Document ID
- RFC9925
- Published
- February 2026
- Authors
- D. Benjamin
- Status
- PROPOSED STANDARD
- Stream
- IETF
- Area
- sec
- Pages
- 10
- Also known as
- —
- Updates:
- RFC 5280
Topics
Related documents
Ranked automatically by shared keywords, IETF area and stream — not by editorial selection.
- RFC 9921CBOR Object Signing and Encryption (COSE) Header Parameter for Timestamp Tokens as Defined in RFC 3161Current
February 2026
- RFC 9930Tunnel Extensible Authentication Protocol (TEAP) Version 1Current
February 2026
- RFC 9919The Lightweight Online Certificate Status Protocol (OCSP) Profile for High-Volume EnvironmentsCurrent
July 2026
- RFC 9935Internet X.509 Public Key Infrastructure - Algorithm Identifiers for the Module-Lattice-Based Key-Encapsulation Mechanism (ML-KEM)Current
March 2026
- RFC 9936Use of ML-KEM in the Cryptographic Message Syntax (CMS)Current
March 2026
- RFC 9939PKCS #8: Private-Key Information Content TypesCurrent
February 2026
- RFC 9909Internet X.509 Public Key Infrastructure -- Algorithm Identifiers for the Stateless Hash-Based Digital Signature Algorithm (SLH-DSA)Current
December 2025
- RFC 9941Secure Shell (SSH) Key Exchange Method Using Hybrid Streamlined NTRU Prime sntrup761 and X25519 with SHA-512: sntrup761x25519-sha512Current
April 2026
Also filed under
About this page
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.
Data sources · Editorial policy · Report a correction · What is an RFC?