starkware-libs/privacy-bridge

Latest recorded source activity: July 8, 2026 at 14:04

SkillsMP catalog refreshed: November 5, 2026 at 19:57

skills collected: 1

GitHub stars: 3
GitHub forks: 2

Install with an AI assistant

Copy this prompt into the AI assistant you're using.

Follow https://skillsmp.com/skill-install/prompt.md to install Agent Skills from https://github.com/starkware-libs/privacy-bridge.

Repository README

Repository README source: README.md

Read the source README

Expand full README

# privacy-bridge A value-movement engine for the [`starknet-privacy`](https://github.com/starkware-libs/starknet-privacy) privacy pool. It moves USDC between everyday EVM wallets/chains and the privacy pool, so users can fund a private balance and later withdraw it — without linking the two sides on-chain. ## What it does - **Into the pool** — takes USDC from an EVM wallet and deposits it into the privacy pool as a private note. - **Out of the pool (BUY leg)** — withdraws from the pool and bridges USDC to a destination EVM chain, driven by the **`OutboundAnonymizer`** Cairo contract. - **Back into the pool (RETURN leg)** — bridges USDC from an EVM chain back into the pool via the inbound **`InboundAnonymizer`** Cairo contract, which binds the incoming funds to a private note. - **Cash out** — withdraws from the pool to the user's own EVM wallet. Cross-chain USDC transfers use **Circle's CCTP** (burn-and-mint with attestation). All client-side key material — Starknet key, viewing key, per-account EVM keys, and the note commitments — is derived from a single wallet signature. ## Privacy model The bridge is designed so that the deposit side and the withdrawal side of a transfer cannot be linked on-chain. Secrets (the wallet signature and derived private keys) are never logged, persisted, or revealed on-chain — the on-chain claim recomputes everything from the authenticated signer. The only capability that may be persisted is the read-only **viewing key** (it can discover notes but cannot move funds). ## Components - `packages/bridge-anonymizers` — the `OutboundAnonymizer` and `InboundAnonymizer` Cairo contracts (Scarb workspace member). Build: `scarb build` · Test: `scarb test`. - `packages/bridge-core` — the framework-agnostic TypeScript engine: value-movement orchestrators, key derivation, CCTP integration, and optional React hooks. - `apps/bridge` — a demo web app built on `bridge-core`. See [`CLAUDE.md`](./CLAUDE.md) for the full architecture.

Loading the repository README…

Skills in this repository

Software Developers

1 occupation category · 100% classified

skill

occupation

description

updated

concise-comments

Software Developers

Concise comments and documentation style for code comments, docstrings, and module/file docs. Use when writing, editing, or reviewing comments, doc-comments, struct/field docs, constants, or entry (lib/index) files. Encodes Yoni-Starkware's review preferences…

2026-07-08

Showing 1 of 1 collected skill.