A Revised Internet-Draft is available from the on-line Internet-Drafts
directories. This draft is a work item of the Privacy-Enhanced Electronic
Mail Working Group of the IETF.
Title : PEM Security Services and MIME
Author(s) : S. Crocker, N. Freed, J. Galvin, S. Murphy
Filename : draft-ietf-pem-mime-07.txt
Pages : 34
Date : 11/23/1994
This document specifies how the services of MIME and PEM can be used in a
complementary fashion. MIME, an acronym for "Multipurpose Internet Mail
Extensions", defines the format of the contents of Internet mail messages
and provides for multi-part textual and non-textual message bodies.
PEM, an acronym for "Privacy Enhanced Mail", provides message
authentication/integrity and message encryption services for
Internet mail messages.
An Internet electronic mail message consists of two parts:
the headers and the body. The headers form a collection of field/value
pairs structured according to RFC822 [1], whilst the body, if structured,
is defined according to MIME [2]. MIME does not provide for the
application of security services.
PEM [3-6] specifies how to apply encryption and authentication/integrity
services to the contents of a textual electronic mail message
but does not provide message structuring or type labelling facilities.
This document specifies how to use PEM with the multipart/signed and
multipart/encrypted MIME content types to provide authentication/integrity
and encryption services. We refer to the authentication/integrity service
as a digital signature service.
This document specifies a number of changes to the message encryption
and signature procedures of PEM and broadens the name forms that may be
used to identify public keys. Many of the changes represent a departure
in mechanism, not in effect.
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Below is the data which will enable a MIME compliant mail reader
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of the Internet-Draft.
- <ftp://ds.internic.net/internet-drafts/draft-ietf-pem-mime-07.txt>
-