Using Pre-Shared Key (PSK) in the Cryptographic Message Syntax (CMS)

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Publisher: IETF
Doc Type: Standard
Pages: 31
Abstract: The invention of a large-scale quantum computer would pose a serious challenge for the cryptographic algorithms that are widely deployed today. The Cryptographic Message Syntax (CMS) supports key transport and key agreement algorithms that could be broken by the invention of such a quantum computer. By storing communications that are protected with the CMS today, someone could decrypt them in the future when a large-scale quantum computer becomes available. Once quantum-secure key management algorithms are available, the CMS will be extended to support the new algorithms if the existing syntax does not accommodate them. This document describes a mechanism to protect today's communication from the future invention of a large-scale quantum computer by mixing the output of key transport and key agreement algorithms with a pre-shared key.
Publication Date: 2019-12-01
Status Note: Proposed Standard
DOI: 10.17487/RFC8696
Link: https://doi.org/10.17487/RFC8696
Author(s): Russ Housley
Keyword(s): Post-quantum Cryptography

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Document Versions — IETF RFC 8696

▶ IETF RFC 8696 (2019-12-01)

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Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 5083 [Active*]
IETF RFC 5652 [Active*]
IETF RFC 5912 [Active*]
IETF RFC 6268 [Active*]
IETF RFC 8126 [Active*]
IETF RFC 8174 [Active*]
T-REC-X.680.2015 — X680 EXTERNAL
T-REC-X.690.2015 — ITU-T-X.690 EXTERNAL

Bibliographic Reference(s)

10.17226-25196 — NAS2019 EXTERNAL
Internet Assigned Numbers Authority [Active, Versionless]
IETF.draft-hoffman-c2pq-06 — I-D.hoffman-c2pq EXTERNAL
IETF.draft-ietf-lamps-cms-mix-with-psk — H2019 EXTERNAL
NIST FIPS 197 [Superseded]
NIST.SP.800-56C — SP80056C EXTERNAL
Fried, J., Gaudry, P., Heninger, N., and E. Thome, "A kilobit hidden SNFS discrete logarithm computation", Cryptology ePrint Archive Report 2016/961, October 2016, <https://eprint.iacr.org/2016/961.pdf>. EXTERNAL
Shor, P., "Algorithms for Quantum Computation: Discrete Logarithms and Factoring", Proceedings of the 35th Annual Symposium on Foundations of Computer Science, pp. 124-134", November 1994. EXTERNAL
IETF RFC 2631 [Active*]
IETF RFC 4086 [Active*]
IETF RFC 5280 [Active, Amended*]
IETF RFC 5753 [Active*]
IETF RFC 5869 [Active*]
IETF RFC 8017 [Active*]
IETF RFC 8619 [Active*]

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<span class="citation"><cite>IETF RFC 8696</cite>, Using Pre-Shared Key (PSK) in the Cryptographic Message Syntax (CMS). Available at <a href="https://doi.org/10.17487/RFC8696" target="_blank" rel="noopener">https://doi.org/10.17487/RFC8696</a></span>

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IETF RFC 8696, Using Pre-Shared Key (PSK) in the Cryptographic Message Syntax (CMS)
doi: 10.17487/RFC8696
url: https://doi.org/10.17487/RFC8696

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<cite id="bib-rfc8696">IETF RFC 8696</cite>, Using Pre-Shared Key (PSK) in the Cryptographic Message Syntax (CMS)
<span class="doi">10.17487/RFC8696</span>
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Referenced By

IETF RFC 9180 [Active*]