< draft-ietf-tls-padding-00.txt		draft-ietf-tls-padding-01.txt >
	Network Working Group A. Langley		Network Working Group A. Langley
	Internet-Draft Google Inc		Internet-Draft Google Inc
	Expires: July 27, 2015 January 23, 2015		Expires: August 21, 2015 February 17, 2015
	A TLS padding extension		A TLS ClientHello padding extension
	draft-ietf-tls-padding-00		draft-ietf-tls-padding-01
	Abstract		Abstract
	This memo describes the a TLS extension that can be used to pad		This memo describes a TLS extension that can be used to pad
	ClientHello messages to a desired size.		ClientHello messages to a desired size.
	Status of This Memo		Status of This Memo
	This Internet-Draft is submitted in full conformance with the		This Internet-Draft is submitted in full conformance with the
	provisions of BCP 78 and BCP 79.		provisions of BCP 78 and BCP 79.
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF). Note that other groups may also distribute		Task Force (IETF). Note that other groups may also distribute
	working documents as Internet-Drafts. The list of current Internet-		working documents as Internet-Drafts. The list of current Internet-
	Drafts is at http://datatracker.ietf.org/drafts/current/.		Drafts is at http://datatracker.ietf.org/drafts/current/.
	Internet-Drafts are draft documents valid for a maximum of six months		Internet-Drafts are draft documents valid for a maximum of six months
	and may be updated, replaced, or obsoleted by other documents at any		and may be updated, replaced, or obsoleted by other documents at any
	time. It is inappropriate to use Internet-Drafts as reference		time. It is inappropriate to use Internet-Drafts as reference
	material or to cite them other than as "work in progress."		material or to cite them other than as "work in progress."
	This Internet-Draft will expire on July 27, 2015.		This Internet-Draft will expire on August 21, 2015.
	Copyright Notice		Copyright Notice
	Copyright (c) 2015 IETF Trust and the persons identified as the		Copyright (c) 2015 IETF Trust and the persons identified as the
	document authors. All rights reserved.		document authors. All rights reserved.
	This document is subject to BCP 78 and the IETF Trust's Legal		This document is subject to BCP 78 and the IETF Trust's Legal
	Provisions Relating to IETF Documents		Provisions Relating to IETF Documents
	(http://trustee.ietf.org/license-info) in effect on the date of		(http://trustee.ietf.org/license-info) in effect on the date of
	publication of this document. Please review these documents		publication of this document. Please review these documents
	skipping to change at page 2, line 47 ¶		skipping to change at page 2, line 47 ¶
	A new extension type ("padding(21)") is defined and MAY be included		A new extension type ("padding(21)") is defined and MAY be included
	by the client in its ClientHello message.		by the client in its ClientHello message.
	enum {		enum {
	padding(21), (65535)		padding(21), (65535)
	} ExtensionType;		} ExtensionType;
	The "extension_data" for the extension consists of an arbitary number		The "extension_data" for the extension consists of an arbitary number
	of zero bytes. For example, the smallest "padding" extension is four		of zero bytes. For example, the smallest "padding" extension is four
	bytes long and is encoded as 00 15 00 00. A ten byte extension would		bytes long and is encoded as 0x00 0x15 0x00 0x00. A ten byte
	include 6 bytes of "extension_data" and would be encoded as:		extension would include 6 bytes of "extension_data" and would be
			encoded as:
	00 15 00 06 00 00 00 00 00 00		00 15 00 06 00 00 00 00 00 00
	|---| |---| |---------------|		|---| |---| |---------------|
	| | |		| | |
	| | \- extension_data: 6 zero bytes		| | \- extension_data: 6 zero bytes
	| |		| |
	| \------------- 16-bit, extension_data length		| \------------- 16-bit, extension_data length
	|		|
	\------------------- extension_type for padding extension		\------------------- extension_type for padding extension
End of changes. 5 change blocks.
	7 lines changed or deleted		8 lines changed or added
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