This document specifies the certificate handling for S/MIME 4.0.
The changes since S/MIME 3.2 include required support for EAI
(internationalized email addresses), increased RSA key sizes,
moving old one-way hash functions to historic status, and
requiring support for ECDSA with P-256 and Ed25519.
Working Group Summary:
There is strong consensus for this document in the LAMPS WG.
S/MIME has wide support, and several implementers have said that
they will implement the new features in this document.
Russ Housley is the document shepherd.
Eric Rescorla is the responsible area director.