Composite Encryption For Use In Internet PKI
draft-ounsworth-pq-composite-encryption-01
Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
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|
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Authors | Mike Ounsworth , John Gray , Serge Mister | ||
Last updated | 2022-08-18 (Latest revision 2022-02-14) | ||
RFC stream | (None) | ||
Intended RFC status | (None) | ||
Formats | |||
Stream | Stream state | (No stream defined) | |
Consensus boilerplate | Unknown | ||
RFC Editor Note | (None) | ||
IESG | IESG state | Expired | |
Telechat date | (None) | ||
Responsible AD | (None) | ||
Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
With the widespread adoption of post-quantum cryptography will come the need for an entity to possess multiple public keys on different cryptographic algorithms. Since the trustworthiness of individual post-quantum algorithms is at question, a multi-key cryptographic operation will need to be performed in such a way that breaking it requires breaking each of the component algorithms individually. This requires defining new structures for holding composite encryption data. This document defines a content encryption process following the hybrid model as described in the NIST Post-Quantum Crypto FAQ. This draft defines three composite encryption modes. First, Composite Key Transport using Encryption primitives which encrypts a message (typically a content encryption key) for a recipient with a composite public key composed entirely of encryption keys by encrypting it with multiple one-time-pad keys, each encrypted under a different recipient public key. Second, Composite Key Transport using Encryption and KEM primitives is the generalization of the previous mode to support a mixture of encryption and KEM algorithms. Third, Composite Key Exchange is the most general and supports establishing a shared secret using any combination of encryption, KEM, and key exchange primitives where a master shared secret is generated using NIST SP 800-56Cr2.
Authors
Mike Ounsworth
John Gray
Serge Mister
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)