Internet DRAFT - draft-hallambaker-mesh-notarization
draft-hallambaker-mesh-notarization
Network Working Group P. M. Hallam-Baker
Internet-Draft Venture Cryptography.
Intended status: Informational 28 June 2023
Expires: 30 December 2023
Mathematical Mesh 3.0 Part IX: Mesh Notarized Signatures
draft-hallambaker-mesh-notarization-01
Abstract
Creation and verification of Mesh Notarized Signatures is described .
A notarized signature is a signature whose time of creation is
attested by one or more parties in addition to the signer. In the
case of Mesh Notarized Signatures, the attesting parties is the set
of all parties participating in a Notarization Mesh. This ideally
includes the relying parties.
Each participant in a Notarization Mesh maintains their own notary
log in the form of a DARE sequence authenticated by a Merkle tree.
Participants periodically cross notarize their personal notary log
with those maintained by other parties. A Mesh Notarized Signature
is bound in time as having being created after time T1 by including
one or more sequence apex values as signed attributes. A Mesh
Notarized Signature is bound in time as having being created before
time T2 by enrolling it in the signer's personal notarization log and
engaging in cross-notarization with a sufficient number of
Notarization Mesh participants to establish the desired proof.
Defection is controlled through an accountability model. If a
trusted notary produces multiple inconsistent signed cross
Notarization tokens, this provides non-repudiable evidence of a
default.
https://mailarchive.ietf.org/arch/browse/mathmesh/
(http://whatever)Discussion of this draft should take place on the
MathMesh mailing list (mathmesh@ietf.org), which is archived at .
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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This Internet-Draft will expire on 30 December 2023.
Copyright Notice
Copyright (c) 2023 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
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Please review these documents carefully, as they describe your rights
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
2.2. Defined Terms . . . . . . . . . . . . . . . . . . . . . . 3
2.3. Related Specifications . . . . . . . . . . . . . . . . . 3
2.4. Implementation Status . . . . . . . . . . . . . . . . . . 3
3. Architecture . . . . . . . . . . . . . . . . . . . . . . . . 3
3.1. Sequence Apex Value . . . . . . . . . . . . . . . . . . . 3
3.2. Proof of Inclusion . . . . . . . . . . . . . . . . . . . 3
3.3. Notarized Signature . . . . . . . . . . . . . . . . . . . 3
3.3.1. Before MNT . . . . . . . . . . . . . . . . . . . . . 3
3.3.2. After MNT . . . . . . . . . . . . . . . . . . . . . . 4
3.4. Cross Notarization . . . . . . . . . . . . . . . . . . . 4
3.5. Proof of default . . . . . . . . . . . . . . . . . . . . 4
4. Notarized Signature Verification . . . . . . . . . . . . . . 4
4.1. Proof that a signature was created after a time . . . . . 4
4.2. Proof that a signature was created before a time . . . . 4
5. Notarization Architectures . . . . . . . . . . . . . . . . . 4
5.1. Bridge Architecture . . . . . . . . . . . . . . . . . . . 4
5.2. Redundant Bridge Architecture . . . . . . . . . . . . . . 4
5.3. Full Mesh . . . . . . . . . . . . . . . . . . . . . . . . 4
6. Notary Default . . . . . . . . . . . . . . . . . . . . . . . 4
7. Security Considerations . . . . . . . . . . . . . . . . . . . 4
7.1. Notary Default . . . . . . . . . . . . . . . . . . . . . 4
7.2. Quantum Cryptanalysis . . . . . . . . . . . . . . . . . . 4
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4
9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 4
10. Normative References . . . . . . . . . . . . . . . . . . . . 4
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11. Informative References . . . . . . . . . . . . . . . . . . . 4
1. Introduction
This draft specifies the creation and verification of Mesh Notarized
Signatures. A notarized signature is a signature whose time of
creation is attested by one or more parties in addition to the
signer. In the case of Mesh Notarized Signatures, the attesting
parties is the set of all parties participating in a Notarization
Mesh. This ideally includes the relying parties.
2. Definitions
This section presents the related specifications and standard, the
terms that are used as terms of art within the documents and the
terms used as requirements language.
2.1. 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 [RFC2119].
2.2. Defined Terms
2.3. Related Specifications
2.4. Implementation Status
The implementation status of the reference code base is described in
the companion document [draft-hallambaker-mesh-developer].
3. Architecture
3.1. Sequence Apex Value
3.2. Proof of Inclusion
3.3. Notarized Signature
3.3.1. Before MNT
Proof of inclusion presented in a protected header, i.e. within the
signature scope
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3.3.2. After MNT
Proof of inclusion presented in the signature header or an external
assertion.
3.4. Cross Notarization
A notarized signature over
3.5. Proof of default
4. Notarized Signature Verification
4.1. Proof that a signature was created after a time
4.2. Proof that a signature was created before a time
5. Notarization Architectures
5.1. Bridge Architecture
5.2. Redundant Bridge Architecture
5.3. Full Mesh
6. Notary Default
7. Security Considerations
7.1. Notary Default
7.2. Quantum Cryptanalysis
8. IANA Considerations
This document requires no IANA actions.
9. Acknowledgements
10. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/rfc/rfc2119>.
11. Informative References
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[draft-hallambaker-mesh-developer]
Hallam-Baker, P., "Mathematical Mesh: Reference
Implementation", Work in Progress, Internet-Draft, draft-
hallambaker-mesh-developer-10, 27 July 2020,
<https://datatracker.ietf.org/doc/html/draft-hallambaker-
mesh-developer-10>.
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