A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the S/MIME Mail Security Working Group of the IETF.
Title : Enhanced Security Services for S/MIME
Author(s) : P. Hoffman
Filename : draft-ietf-smime-ess-08.txt
Pages : 31
Date : 30-Sep-98
This document describes three optional security service extensions for
S/MIME. These services provide functionality that is similar to the Message
Security Protocol [MSP4], but are useful in many other environments,
particularly business and finance. The services are:
- signed receipts
- security labels
- secure mailing lists
The services described here are extensions to S/MIME version 3 [SMIME3],
and some of them can also be added to S/MIME version 2 [SMIME2]. The
extensions described here will not cause an S/MIME version 3 recipient to
be unable to read messages from an S/MIME version 2 sender. However, some
of the extensions will cause messages created by an S/MIME version 3 sender
to be unreadable by an S/MIME version 2 recipient.
The format of the messages are described in ASN.1:1988 [ASN1-1988].
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Below is the data which will enable a MIME compliant mail reader
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