RFC 8551
Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Message Specification, April 2019
- File formats:
- Status:
- PROPOSED STANDARD
- Obsoletes:
- RFC 5751
- Authors:
- J. Schaad
B. Ramsdell
S. Turner - Stream:
- IETF
- Source:
- lamps (sec)
Cite this RFC: TXT | XML | BibTeX
DOI: https://doi.org/10.17487/RFC8551
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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 8729.