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, M. Rose
Filename : draft-ietf-pem-mime-04.txt
Pages : 30
Date : 03/15/1994
This memo defines a new content type for specifying the application of
security services to MIME message bodies. 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. The new content type is a subtype of multipart
called security. It will contain two body parts: one for the data to be
security enhanced and one for the control information necessary to apply
and remove the security enhancement. Initially, two control information
content types are defined: application/signature and application/keys. The
first is to be used when a body part is digitally signed while the second
is to be used when a body part is encrypted.
The new content type is used to specify how the services of MIME and PEM
can be used in a complementary fashion. PEM, an acronym for "Privacy
Enhanced Mail", provides message encryption and message
authentication/integrity services for Internet mail messages.
This memo updates the message encryption and authentication procedures
defined by Part I of the PEM specifications and obsoletes the key
certification and related services defined by Part IV of the
PEM specifications.
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