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zkID

Privacy-preserving identity proofs. OpenAC wallet unit aligned with EUDI. ZK-friendly primitives.

Research & development
Roadmap Completion: 50%
Identity
EUDI
OpenAC
Standards
Now

Generalized Predicates Benchmarking

Benchmark the generalized predicates implementation to measure performance.

In Progress

mDOC/MDL Support

Add support for ISO mDOC/mDL credential formats in OpenAC.

In Progress

Multi-VC Linking Research

Research approaches for linking multiple verifiable credentials within a single proof.

In Progress

OpenAC ETSI Profile

Development of a draft specification of the OpenAC profile as a contribution to ETSI TS 119 476-2.

In Progress

Third Party Wallet Integration

Technical collaboration with EU wallet vendors and integration testing with MODA/TWDIW.

Ongoing

Explore OpenAC Integration Strategy

Ongoing exploration of integration strategies and partnerships for OpenAC adoption.

Ongoing

Compare Values Within the Same Credential

Design and implement predicates that compare values within a single verifiable credential.

Completed

Implement Generalized Predicates

Enable flexible, expressive, composable verification requests over verifiable credentials.

Completed

Publish OpenAC SDK

Publish the OpenAC SDK with complete documentation for external integration.

Completed

Address Paper Feedback

Address community feedback, refine content, and publish a revised version of the OpenAC paper.

Completed

Research and Rewrite Circuits Using Bellpepper or Arkworks

Research and rewrite circuits using Bellpepper or Arkworks for improved performance.

Completed

Optimize Circom Circuit Implementations

Improve efficiency, readability, and performance of existing Circom circuits.

Completed

Revocation Reports

Publish the Merkle Tree-based revocation report on PSE blog and support completion of the DIF Revocation report.

Completed

EU Commission Engagement

Presentations and workshops with the European Commission on OpenAC.

Completed

Explore On-chain Verification

Explore EVM-compatible on-chain verification of OpenAC proofs.

Completed
Next

Multi-VC Linking Implementation

Implement multi-VC linking based on research outcomes.

Planned

Add Generalized Predicates to OpenAC SDK

Extend the OpenAC SDK to expose generalized predicates to integrators.

Planned

W3C VC Support

Add support for the W3C Verifiable Credentials format in OpenAC.

Planned

Optimized Non-Membership Tree for Revocation

Design and implement an optimized non-membership tree suitable for privacy-preserving revocation and generic non-membership proofs.

Planned

Privacy Revocation for OpenAC

Design and implement privacy-preserving revocation for OpenAC credentials.

Planned

Write v2 OpenAC Paper

Publish an updated OpenAC paper reflecting the v2 design and latest research.

Planned

Documentation for OpenAC v2

Produce complete documentation for the OpenAC v2 specification.

Planned
Later

X.509 Certificate Support

Implement support for X.509 certificates to enable use cases that rely on existing industry standards.

Target Q3 2026

PQ-OpenAC Research

Research post-quantum secure constructions for OpenAC verifiable presentations.

Target Q3 2026

Description

  • Modular ZKP wallet unit aligned with EUDI
  • Post-quantum secure verifiable presentations
  • Drive Ethereum as identity trust layer

Deliverables

  • Revised OpenAC paper
  • Generalized predicates support
  • OpenAC SDKs with full docs
  • OpenAC v2 paper and documentation
  • OpenAC SDK with generalized predicates
  • mDOC/MDL and W3C VC format support
  • Multi-VC linking
  • Privacy-preserving revocation
  • OpenAC ETSI profile
  • X.509 Certificate support

Impact

  • 2 external OpenAC integrations (wallet, sandbox, or institution)
  • 2 external projects integrating our generalized predicates solution/SDK/library
  • Inform revocation flow for 2 identity projects
  • 2 governments using Ethereum (or L2) as an identity trust registry
  • OpenAC or ZKP standard inclusion in one identity framework