Skip to main content

Repeat And Request-Tag
draft-amsuess-core-repeat-request-tag-00

Document Type Replaced Internet-Draft (individual)
Expired & archived
Authors Christian Amsüss , John Preuß Mattsson , Göran Selander
Last updated 2017-07-01
Replaces draft-amsuess-core-request-tag
Replaced by draft-ietf-core-echo-request-tag
RFC stream (None)
Intended RFC status (None)
Formats
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-core-echo-request-tag
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

This document defines two optional extensions to the Constrained Application Protocol (CoAP): the Repeat option and the Request-Tag option. Each of these options when integrity protected, such as with DTLS or OSCOAP, protects against certain attacks on CoAP message exchanges. The Repeat option enables a CoAP server to verify the freshness of a request by requiring the CoAP client to make another request and include a server-provided challenge. The Request-Tag option allows the CoAP server to match message fragments belonging to the same request message, fragmented using the CoAP Block-Wise Transfer mechanism. This document also specifies additional processing requirements on Block1 and Block2 options.

Authors

Christian Amsüss
John Preuß Mattsson
Göran Selander

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)