RFC 8551

Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Message Specification, April 2019

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Status:
PROPOSED STANDARD
Obsoletes:
RFC 5751
Authors:
J. Schaad
B. Ramsdell
S. Turner
Stream:
IETF
Source:
lamps (sec)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC8551

Discuss this RFC: Send questions or comments to spasm@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

This document defines Secure/Multipurpose Internet Mail Extensions (S/MIME) version 4.0. S/MIME provides a consistent way to send and receive secure MIME data. Digital signatures provide authentication, message integrity, and non-repudiation with proof of origin. Encryption provides data confidentiality. Compression can be used to reduce data size. This document obsoletes RFC 5751.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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