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Passport ZK Circuits

Passport ZK Circuits is a Circom repository that generates zero-knowledge circuit artifacts and inputs for registering identities from biometric passport data, in a voting-system context.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Passport ZK Circuits — OpenViST project profile in ZK & Privacy.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when developing an identity-registration or proof-generation workflow that needs to process passport-derived data and produce Circom circuit artifacts.

Who it is for

  • Developers building passport-based identity registration flows
  • Teams developing zero-knowledge proof pipelines or voting applications that use biometric-passport identity circuits

Documented uses

  • Generate a main circuit and inputs from passport JSON.
  • Use a reusable identity-registration builder or supply parameters manually.
  • Generate verification circuits configured for passport-format differences.
  • Use the described query circuit to reveal data for an already registered passport.
Before you choose

Requirements & limits

The repository identifies an MIT license.

  • The documented generation workflow requires passport JSON plus npm or Yarn; manual parameter entry is also mentioned, without a detailed procedure.
  • Passport variation is handled through verification-flow parameters and compile-time shifts, so developers need to configure for the relevant passport case.
  • The README assigns active-authentication signature verification to a smart contract, while circuits prove that a public key is present in a valid passport.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Generate circuit artifacts from passport JSON

Create the main circuit and inputs for passport identity registration using the repository's documented workflow.

Before you start

  • The repository's files
  • Passport data in JSON format
  • npm or Yarn

Steps

  1. Place the passport JSON file in test/inputs/passport.

  2. Install the project dependencies with npm i or yarn.

  3. Run npm run test or yarn run test.

Expected outcome

The workflow generates a main circuit in ciruits/generated and inputs in inputs/generated.

Guide limitations

  • The README describes this as circuit generation; it does not document a complete voting-system deployment.
  • Manual parameters are described as an alternative when passport JSON is unavailable, but this workflow does not detail those parameters.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
24 October 2026
Original website title
rarimo/passport-zk-circuits · Official homepage title · retained in its source language
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