Data At Rest Encryption Part 2: DARE Container
draft-hallambaker-dare-container-02

Document Type Active Internet-Draft (individual)
Last updated 2018-08-27
Stream (None)
Intended RFC status (None)
Formats plain text xml pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Network Working Group                                    P. Hallam-Baker
Internet-Draft                                         Comodo Group Inc.
Intended status: Informational                           August 27, 2018
Expires: February 28, 2019

             Data At Rest Encryption Part 2: DARE Container
                  draft-hallambaker-dare-container-02

Abstract

   This document describes DARE Container, a message and file syntax
   that allows an append-only sequence of data frames to be represented
   with cryptographic integrity, signature and encryption enhancements.
   The format supports data integrity checks using digest chains and
   Merkle trees.  The simplest supports efficient write operations and
   efficient read operations in either the forward or reverse direction.
   Support for efficient random-access reads may be provided through the
   use of binary trees or index records appended to the end of the file.

   This document is also available online at
   http://mathmesh.com/Documents/draft-hallambaker-dare-container.html
   [1] .

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   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 28, 2019.

Copyright Notice

   Copyright (c) 2018 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

Hallam-Baker            Expires February 28, 2019               [Page 1]
Internet-Draft             DARE Data Container               August 2018

   (https://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
   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Container Format  . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Write . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     1.3.  Read Access . . . . . . . . . . . . . . . . . . . . . . .   5
     1.4.  Encryption and Authentication . . . . . . . . . . . . . .   5
     1.5.  Integrity and Signature . . . . . . . . . . . . . . . . .   5
     1.6.  Redaction . . . . . . . . . . . . . . . . . . . . . . . .   6
     1.7.  Alternative approaches  . . . . . . . . . . . . . . . . .   6
     1.8.  Efficiency  . . . . . . . . . . . . . . . . . . . . . . .   7
   2.  Definitions . . . . . . . . . . . . . . . . . . . . . . . . .   7
     2.1.  Related Specifications  . . . . . . . . . . . . . . . . .   7
     2.2.  Requirements Language . . . . . . . . . . . . . . . . . .   8
   3.  Container Navigation  . . . . . . . . . . . . . . . . . . . .   8
     3.1.  Tree  . . . . . . . . . . . . . . . . . . . . . . . . . .   9
     3.2.  Position Index  . . . . . . . . . . . . . . . . . . . . .   9
     3.3.  Metadata Index  . . . . . . . . . . . . . . . . . . . . .  10
   4.  Integrity Mechanisms  . . . . . . . . . . . . . . . . . . . .  10
     4.1.  Digest Chain calculation  . . . . . . . . . . . . . . . .  10
     4.2.  Binary Merkle tree calculation  . . . . . . . . . . . . .  10
   5.  Reference . . . . . . . . . . . . . . . . . . . . . . . . . .  11
     5.1.  Container Headers . . . . . . . . . . . . . . . . . . . .  11
       5.1.1.  Structure: ContainerHeaderFirst . . . . . . . . . . .  11
       5.1.2.  Structure: ContainerHeader  . . . . . . . . . . . . .  11
     5.2.  Content Metadata Structure  . . . . . . . . . . . . . . .  12
       5.2.1.  Structure: ContentMeta  . . . . . . . . . . . . . . .  12
     5.3.  Index Structures  . . . . . . . . . . . . . . . . . . . .  13
       5.3.1.  Structure: ContainerIndex . . . . . . . . . . . . . .  13
       5.3.2.  Structure: IndexPosition  . . . . . . . . . . . . . .  13
       5.3.3.  Structure: KeyValue . . . . . . . . . . . . . . . . .  13
       5.3.4.  Structure: IndexMeta  . . . . . . . . . . . . . . . .  13
     5.4.  Signature . . . . . . . . . . . . . . . . . . . . . . . .  14
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
Show full document text