RFC 8636

Public Key Cryptography for Initial Authentication in Kerberos (PKINIT) Algorithm Agility, July 2019

Canonical URL:
https://www.rfc-editor.org/rfc/rfc8636.txt
File formats:
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Status:
PROPOSED STANDARD
Updates:
RFC 4556
Authors:
L. Hornquist Astrand
L. Zhu
M. Cullen
G. Hudson
Stream:
IETF
Source:
kitten (sec)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC8636

Discuss this RFC: Send questions or comments to kitten@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

This document updates the Public Key Cryptography for Initial Authentication in Kerberos (PKINIT) standard (RFC 4556) to remove protocol structures tied to specific cryptographic algorithms. The PKINIT key derivation function is made negotiable, and the digest algorithms for signing the pre-authentication data and the client's X.509 certificates are made discoverable.

These changes provide preemptive protection against vulnerabilities discovered in the future in any specific cryptographic algorithm and allow incremental deployment of newer algorithms.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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