File formats:

Also available: XML file for editing

 

Status:

PROPOSED STANDARD

Author:

R. Housley

Stream:

IETF

Source:

lamps (sec)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC9709

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Abstract

This document specifies the derivation of the content-encryption key or the content-authenticated-encryption key in the Cryptographic Message Syntax (CMS) using the HMAC-based Extract-and-Expand Key Derivation Function (HKDF) with SHA-256. The use of this mechanism provides protection against an attacker that manipulates the content-encryption algorithm identifier or the content-authenticated-encryption algorithm identifier.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.