Cryptographic Message Syntax (CMS) Encrypted Key Package Content Type
draft-turner-encryptedkeypackagecontenttype-02

**BEGIN DOWNREF ALERT**

This document is headed for standards track, but there are normative
references to two informative IDs and 4 superseded ITU/ISO standards.
All of these references (NEWPKIXASN, NEWSMIMEASN, X.680, X.681, X.682,
X.683) all result from the choice of '02 ASN.1. I chose the '02 ASN.1
because I want to use the latest available ASN.1 that has a freeware
compiler and I'd rather import than redefine ASN.1 structures.

**END DOWNRED ALERT**

PROTO write-up:

1.a - Carl Wallace is the Shepherd. He's personally reviewed the ID
and personally knows it's ready for IESG publication.
1.b - The document has been reviewed by key IETF participants. There are
no concerns about depth or breadth of the reviews.
1.c - There is no need for wider review.
1.d - There are no specific concerns that the AD and/or IESG should be
aware of.
1.e - The consensus is solid.
1.f - There has been no threat of an appeal.
1.g - The Shepherd has personally verified that the document satisfies
all ID nits.
1.h - The document splits it references.
1.i - The document has an IANA consideration and it is consistent with
the main body (there are no IANA considerations).
1.j - The Shepherd has personally compiled the ASN.1 modules. Note that
dummy OID values were used while we await final assignment.

Technical Summary

This document specifies a content type for encrypted key packages. It
is a choice of: EnvelopedData, EncryptedData, or AuthEnvelopedData. The
rationale for it's use is based on the CMS content constraints
documented in draft-housley-cms-content-constraints-extn. This document
also defines an attribute that provides a hint as to which key should be
used to decrypt the content when the EncryptedData choice is used.

Working Group Summary

This document is not the product of an IETF Working Group.

Document Quality

The document is short, but provides enough background to explain why why
the content type is needed.

Personnel

Carl Wallace is the document Shepherd. Tim Polk is the
responsible Security Area AD.