RFC 9909

Internet X.509 Public Key Infrastructure -- Algorithm Identifiers for the Stateless Hash-Based Digital Signature Algorithm (SLH-DSA), December 2025

File formats:

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Also available: XML file for editing
 
Status:
PROPOSED STANDARD
Authors:
K. Bashiri
S. Fluhrer
S. Gazdag
D. Van Geest
S. Kousidis
Stream:
IETF
Source:
lamps (sec)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC9909

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Abstract

Digital signatures are used within the X.509 Public Key Infrastructure, such as X.509 certificates and Certificate Revocation Lists (CRLs), as well as to sign messages. This document specifies the conventions for using the Stateless Hash-Based Digital Signature Algorithm (SLH-DSA) in the X.509 Public Key Infrastructure. The conventions for the associated signatures, subject public keys, and private keys are also specified.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.




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