Opportunistic Wireless Encryption
draft-harkins-owe-03
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Network Working Group D. Harkins, Ed.
Internet-Draft HP Enterprise
Intended status: Informational W. Kumari, Ed.
Expires: February 24, 2017 Google
August 23, 2016
Opportunistic Wireless Encryption
draft-harkins-owe-03
Abstract
This memo specifies an extension to IEEE Std 802.11 to provide for
opportunistic (unauthenticated) encryption to the wireless media.
[ Ed note: Text inside square brackets ([]) is additional background
information, answers to frequently asked questions, general musings,
etc. They will be removed before publication. This document is
being collaborated on in Github at: https://github.com/wkumari/draft-
harkins-owe. The authors (gratefully) accept pull requests. ]
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
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Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on February 24, 2017.
Copyright Notice
Copyright (c) 2016 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
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Internet-Draft Opportunistic Wireless Encryption August 2016
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 2
1.2. Notation . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3. Why IETF? . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Background . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. 802.11 Network Access . . . . . . . . . . . . . . . . . . . . 4
4. Opportunistic Wireless Encryption . . . . . . . . . . . . . . 5
4.1. Cryptography . . . . . . . . . . . . . . . . . . . . . . 5
4.2. OWE Discovery . . . . . . . . . . . . . . . . . . . . . . 6
4.3. OWE Association . . . . . . . . . . . . . . . . . . . . . 6
4.4. OWE Post-Association . . . . . . . . . . . . . . . . . . 8
4.5. OWE PMK Caching . . . . . . . . . . . . . . . . . . . . . 8
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9
6. Implementation Considerations . . . . . . . . . . . . . . . . 9
7. Security Considerations . . . . . . . . . . . . . . . . . . . 9
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.1. Normative References . . . . . . . . . . . . . . . . . . 10
8.2. Informative References . . . . . . . . . . . . . . . . . 10
Appendix A. Changes / Author Notes. . . . . . . . . . . . . . . 11
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 11
1. Introduction
This memo describes a mode of opportunistic encryption [RFC7435] for
802.11 -- OWE -- that provides encryption of the wireless medium but
no authentication.
1.1. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
1.2. Notation
This memo uses the following notation:
y = F(X) an element-to-scalar mapping function. For an elliptic
curve group, it takes a point on the curve and returns the
x-coordinate; for a finite field element it is the identity
function, just returning the element itself.
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Z = DH(x,Y)
for an elliptic curve DH(x,Y) is the multiplication of point Y by
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