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The purpose of the Authentic Chained Data Container (ACDC) Task Force is is to help draft a TSS (ToIP Standard Specification) that defines and incubate a family of IETF-focused specifications that define the standard requirements for the semantics of Authentic Provenance Chaining of Authentic Chained Data Containers. This The semantics of ACDCs include both source provenance and authorization provenance or delegation. The hypothesis is that the W3C Verifiable Credential standard may be expanded to serve as an Authentic Data Container (ADC) and that the semantics of a VC may be expanded to support an with authentic provenance chains (APC) as a super semantic. This may be further expanded to support both a source provenance sub-semantic and a delegated authorization sub-semantic. These are all encapsulated into the semantics with the supporting syntax of an ACDC.
Deliverables
The table below lists all deliverables of the ACDC Task Force:
| Acronym | Full Name of Deliverable | Deliverable Type | Link to |
|---|
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| Draft Deliverable | Lead Authors | Status/Notes | |||
|---|---|---|---|---|---|
| KERI | Key Event Receipt Infrastructure | Specification | https://trustoverip.github.io/tswg-keri-specification/ | Samuel Smith | Active Draft |
| ACDC | Authentic Chained Data Container | Specification | Active Draft | ||
| CESR | Composable Event Streaming Representation | Specification | https://trustoverip.github.io/tswg-cesr-specification/ | Samuel Smith | Active Draft |
| SAID | Self-Addressing Identifiers | Specification | Merged to CESR | ||
| CESR Proof | CESR Proof Signatures | Specification | Pending merge | Active Draft | |
| PTEL | Public Transaction Event Log | Specification | Merged ACDC | ||
| IPEX | Issuance and Presentation Exchange protocol | Specification | Merged ACDC | ||
| OOBI | Out-Of-Band-Introduction protocol | Specification | Merged to KERI | ||
| VC-ACDC | Securing Verifiable Credentials using Authentic Chained Data Containers. | Specification | Unofficial draft | Active Draft |
Chairs
Please add your name to this list if you wish to be a chair:
- Samuel Smith, ProSapien Samuel Smith
- Philip Feairheller, GLEIF Phil Feairheller
2022 - Members
Please add your name to this list in any desired role:
- Primary Editors
Secondary Editors
Secondary Editors
- Primary Reviewers
Secondary Reviewers
- Observers
Meeting Schedule
The ACDC TF currently holds a meeting weekly on Tuesdays:
- NA/EU: 10:00-11:00 EST / 14:00-15:00 UTC
For all authoritative meeting logistics and Zoom links, please see the ToIP Calendar.
tpsThis TF schedules meetings as needed. Each meeting will be announced on the T mailing list and the TSWG Slack channel. Currently, we are meeting every other week on Mondays, at 9 am US Mountain time, 1700 Central European Time, at https://zoom.us/j/9136800395792692239100?pwd=dFI4RGNqMDFkVjliNzFMQXQwN1cxUT09
Milestones
Key milestones will include, but are not limited to:
Task List
This table is the ongoing task list maintained by the TF members.
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See the latest documentation in the GitHub Repo here: https://github.com/trustoverip/tswg-acdc-specification
Meeting Agendas and Notes
All meeting agendas and notes are recorded on the ACDC Meeting Page.
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Intellectual Property Rights (Copyright, Patent, Source Code)
As a Task a Task Force (TF) of the Technology the Technology Stack WG (TSWG), the ACDC TF inherits inherits the IPR terms from the the TSWG JDF Charter. These include:
- Copyright mode: Creative Commons Attribution 4.0. : OWFa 1.0 (available at https://www.openwebfoundation.org/the-agreements/the-owf-1-0-agreements-granted-claims/owfa-1-0)
- Patent mode: W3C Mode (based on the W3C Patent Policy).OWFa 1.0 (available at https://www.openwebfoundation.org/the-agreements/the-owf-1-0-agreements-granted-claims/owfa-1-0)
- Source code: Apache 2.0 , (available at at http://www.apache.org/licenses/LICENSE-2.0.html. The GSWG TA )
- The ACDC TF is not expected to produce source code.
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This task force uses the following for communications
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- Slack: This TF has its own dedicated Slack channel: #gswg#tswg-govacdc-architecture-tf
- Github: This TF will use GitHub issues for substantive conversations on topics, not Slack. This way the conversation is source controlled.
Specification Generation
This task force uses the following for communicationsSpecifications use the IETF draft format but may use the following:
- Markdown: Draft portions spec written in Markdown
- SpecUP: Final version of spec processed with SpecUp
Agenda Minutes
2021-02-01
Finalize choice of MkDocs vs SpecUp: Decided on MKDocs:
Action Item: Sam work with TOIP to setup GitHub repo with MkDocs
EiDas Links: (See 2021-02-01) Robert Mitwicki. Discussion of SSI etc in EiDAS
Relation to Legal Framework for Digital Signatures
https://en.wikipedia.org/wiki/Electronic_signatures_and_law
https://acrobat.adobe.com/content/dam/doc-cloud/en/pdfs/adobe-sign-us-guide-e-signatures-wp-ue.pdf
ESIGN Act https://www.fdic.gov/regulations/compliance/manual/10/X-3.1.pdf
EiDAS
Advanced Electronic Signature Qualified Electronic Signature Notaries with Certificate = Handwrittern Signature
Review Use Cases:
Semantic Containers: Pauls Knowles Semantic Container. Nested Forms. Consent.
Distinguish between different types of containers as part of specification for ACDC
2021-01-18
Action Item Robert Mitwicki add information on EIDAS regulation allows for linking.
- eIDAS: https://en.wikipedia.org/wiki/EIDAS
- eIDAS SSI bridge: is a pilot focusing on providing a cross-border identity solution compliant with the eIDAS trust framework:
https://joinup.ec.europa.eu/collection/ssi-eidas-bridge/about - Related links:
https://ec.europa.eu/cefdigital/wiki/display/CEFDIGITAL/EBSI
https://joinup.ec.europa.eu/sites/default/files/document/2020-04/SSI_eIDAS_legal_report_final_0.pdf
https://en.wikipedia.org/wiki/Advanced_electronic_signature
https://ssimeetup.org/introducing-ssi-eidas-legal-report-ignacio-alamillo-webinar-55/
https://ec.europa.eu/digital-single-market/en/policies/trust-services-and-eidentification
https://oneflow.com/blog/what-makes-electronic-signature-legal/
https://ec.europa.eu/cefdigital/wiki/download/attachments/82773108/eidas_-_crypto_requirements_for_the_eidas_interoperability_framework_v1.0.pdf
https://www.cencenelec.eu/news/brief_news/Pages/TN-2019-049.aspx
Discussed CCG Meeting on ZCap vs VC Authorization
Discussed Use Cases
MkDocs vs Spec Up (Tables?)
Action Item Sam review and present at next meeting
2021-01-04
Use Case Summaries
GLEIF vLEI https://hackmd.io/dlnfd8xOSqmD90v4Y6mzFQ (Sam Smith ProSapien)
Supply Chain https://hackmd.io/vYztT346RC-m34aVmFB7vg (Robert Mitwiki Human Colossus )
Global ID for life https://hackmd.io/vYztT346RC-m34aVmFB7vg (IdNum - Robert)
Use Cases
This table lists the starting set of use cases motivating the ACDC work.
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| Task | Description | Link | Authors |
|---|---|---|---|
| GLEIF use case | https://hackmd.io/dlnfd8xOSqmD90v4Y6mzFQ | ||
| Supply Chain use case | Supply chain refers to the overall concept behind the flow of any type of goods and services. | https://hackmd.io/vYztT346RC-m34aVmFB7vg | |
| Delegation use case (analog to ZCap usage) | A car rental company delegates driving privileges for car X to Alice. Alice delegates to the attendant at valet parking. | https://hackmd.io/jDSauX_4RWmTzn8rPijxng | |
| Data graph with verification | Boarding a plane for international travel |
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Authorizations for Encrypted Backups use_case.md (Charles Cunningham Eugeniu Rusu Jolocom)
Guardianship Chain of Credentials (Evernym Daniel and Drummond)
Delegating Access to Rented Car (Evernym)
Provenancing Inherited Attributes (Daniel Hardman Evernym ProSapien)
Delegation of Certification Authority PKI Certificate Like Chaining (Ned Smith Intel)
Object Capabilities Like Authorizations (See authorizations for encrypted backups)
Critical Supply Chain Provenancing (Carsten Stoecker Spherity)
Open Accredited Market Participation Energy Market (Jolocom
Provenance Virtuous Supply Chains Conscious Consumers Demand Pull
Data Supply Chain Provenance
Data Supply Chain Consent Provenance Consented Data Privacy (Samuel Smith ProSapien)
Content Distrubution Networks (copyright, acknowledgement, usage, attribution) (Thomas Hardjano MIT)
IoT Onboarding Devices (Ned Smith Intel, Thomas Hardjano MIT)
Attestation Chaining
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| QYlbK-mmTSGKHkpyP_-VSg | |
| Pure data provenance | Citing sources |
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Attribution Chaining Semantic Super Semantic
Secure Attribution of statement to controller of a decentralized identifier
A securely attributed chaining statement links two securely attributed statements together
A chaining statement is a special case statement whose semantics are to securely linked by attribution.
This chaining may be applied recursively.
The chained statements that are not chaining statements may convey sub-semantics such as authorization, delegation, attestation, provenance, etc.
Attribution Verification Types: Nonrepudiable Signatures. ZKPs. Anonymized Data.
Certificate Result Certification
Certifying the result of a decision
Verifiable Algorithm
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