[CFRG] RFC 9180 on Hybrid Public Key Encryption
rfc-editor@rfc-editor.org Thu, 24 February 2022 23:01 UTC
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Subject: [CFRG] RFC 9180 on Hybrid Public Key Encryption
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A new Request for Comments is now available in online RFC libraries. RFC 9180 Title: Hybrid Public Key Encryption Author: R. Barnes, K. Bhargavan, B. Lipp, C. Wood Status: Informational Stream: IRTF Date: February 2022 Mailbox: rlb@ipv.sx, karthikeyan.bhargavan@inria.fr, ietf@benjaminlipp.de, caw@heapingbits.net Pages: 107 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-irtf-cfrg-hpke-12.txt URL: https://www.rfc-editor.org/info/rfc9180 DOI: 10.17487/RFC9180 This document describes a scheme for hybrid public key encryption (HPKE). This scheme provides a variant of public key encryption of arbitrary-sized plaintexts for a recipient public key. It also includes three authenticated variants, including one that authenticates possession of a pre-shared key and two optional ones that authenticate possession of a key encapsulation mechanism (KEM) private key. HPKE works for any combination of an asymmetric KEM, key derivation function (KDF), and authenticated encryption with additional data (AEAD) encryption function. Some authenticated variants may not be supported by all KEMs. We provide instantiations of the scheme using widely used and efficient primitives, such as Elliptic Curve Diffie-Hellman (ECDH) key agreement, HMAC-based key derivation function (HKDF), and SHA2. This document is a product of the Crypto Forum Research Group (CFRG) in the IRTF. INFORMATIONAL: This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce, rfc-dist and IRTF-Announce lists.To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist https://www.irtf.org/mailman/listinfo/irtf-announce For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC