RFC 4853 · PROPOSED STANDARD · 2007
WED · 29 JUL 2026
Cryptographic Message Syntax Multiple Signer Clarification
Overview
RFC 4853, “Cryptographic Message Syntax Multiple Signer Clarification”, is a Proposed Standard document published in April 2007 by R. Housley. It updates RFC 3852. The canonical text is published by the RFC Editor.
Abstract
This document updates the Cryptographic Message Syntax (CMS), which is published in RFC 3852. This document clarifies the proper handling of the SignedData protected content type when more than one digital signature is present. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
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Relationships to other RFCs
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