Mathematical Mesh 3.0 Part III : Data At Rest Encryption (DARE)
draft-hallambaker-mesh-dare-11
Network Working Group P. M. Hallam-Baker
Internet-Draft ThresholdSecrets.com
Intended status: Informational 13 January 2021
Expires: 17 July 2021
Mathematical Mesh 3.0 Part III : Data At Rest Encryption (DARE)
draft-hallambaker-mesh-dare-11
Abstract
This document describes the Data At Rest Encryption (DARE) Envelope
and Container syntax.
The DARE Envelope syntax is used to digitally sign, digest,
authenticate, or encrypt arbitrary content data.
The DARE Container syntax describes an append-only sequence of
entries, each containing a DARE Envelope. DARE Containers may
support cryptographic integrity verification of the entire data
container content by means of a Merkle tree.
[Note to Readers]
Discussion of this draft takes place on the MATHMESH mailing list
(mathmesh@ietf.org), which is archived at
https://mailarchive.ietf.org/arch/search/?email_list=mathmesh.
This document is also available online at
http://mathmesh.com/Documents/draft-hallambaker-mesh-dare.html.
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 17 July 2021.
Hallam-Baker Expires 17 July 2021 [Page 1]
Internet-Draft Mesh: Data At Rest Encryption January 2021
Copyright Notice
Copyright (c) 2021 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 (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.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Encryption and Integrity . . . . . . . . . . . . . . . . 5
1.1.1. Key Exchange . . . . . . . . . . . . . . . . . . . . 5
1.1.2. Data Erasure . . . . . . . . . . . . . . . . . . . . 6
1.2. Signature . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2.1. Signing Individual Plaintext Envelopes . . . . . . . 7
1.2.2. Signing Individual Encrypted Envelopes . . . . . . . 7
1.2.3. Signing sequences of envelopes . . . . . . . . . . . 7
1.3. Container . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3.1. Container Format . . . . . . . . . . . . . . . . . . 8
1.3.2. Write . . . . . . . . . . . . . . . . . . . . . . . . 9
1.3.3. Encryption and Authentication . . . . . . . . . . . . 9
1.3.4. Integrity and Signature . . . . . . . . . . . . . . . 10
1.3.5. Redaction . . . . . . . . . . . . . . . . . . . . . . 10
1.3.6. Alternative approaches . . . . . . . . . . . . . . . 11
1.3.7. Efficiency . . . . . . . . . . . . . . . . . . . . . 11
2. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1. Related Specifications . . . . . . . . . . . . . . . . . 12
2.2. Requirements Language . . . . . . . . . . . . . . . . . . 12
2.3. Defined terms . . . . . . . . . . . . . . . . . . . . . . 13
3. DARE Envelope Architecture . . . . . . . . . . . . . . . . . 14
3.1. Processing Considerations . . . . . . . . . . . . . . . . 15
3.2. Content Metadata and Annotations . . . . . . . . . . . . 15
3.3. Encoded Data Sequence . . . . . . . . . . . . . . . . . . 16
3.4. Encryption and Integrity . . . . . . . . . . . . . . . . 17
3.4.1. Key Exchange . . . . . . . . . . . . . . . . . . . . 17
3.4.2. Key Identifiers . . . . . . . . . . . . . . . . . . . 18
3.4.3. Salt Derivation . . . . . . . . . . . . . . . . . . . 19
3.4.4. Key Derivation . . . . . . . . . . . . . . . . . . . 19
3.5. Signature . . . . . . . . . . . . . . . . . . . . . . . . 20
3.6. Algorithms . . . . . . . . . . . . . . . . . . . . . . . 20
3.6.1. Field: kwd . . . . . . . . . . . . . . . . . . . . . 20
4. DARE Container Architecture . . . . . . . . . . . . . . . . . 20
4.1. Container Navigation . . . . . . . . . . . . . . . . . . 21
4.1.1. Tree . . . . . . . . . . . . . . . . . . . . . . . . 22
Show full document text