[lamps] I-D Action: draft-ietf-lamps-cms-mix-with-psk-00.txt

internet-drafts@ietf.org Mon, 17 September 2018 17:32 UTC

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Subject: [lamps] I-D Action: draft-ietf-lamps-cms-mix-with-psk-00.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Limited Additional Mechanisms for PKIX and SMIME WG of the IETF.

        Title           : Using Pre-Shared Key (PSK) in the Cryptographic Message Syntax (CMS)
        Author          : Russell Housley
	Filename        : draft-ietf-lamps-cms-mix-with-psk-00.txt
	Pages           : 14
	Date            : 2018-09-17

   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 them, if existing syntax the does not
   accommodated them.  In the near-term, 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.

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