🔐 idmap-prism
IdMap Prism is a privacy-preserving proof engine for Solana that lets users prove statements like "my balance is ≥ X", "I interacted with program Y", or "I hold token Z" without revealing their actual balances or full transaction history. It combines threshold MPC, ZK proofs, and Solana Token-2022 confidential transfers into a single, auditable system.
Powered by CGGMP21 DKG, Ed25519 Threshold Signatures, and Arkworks ZK Circuits
Rust Solana MPC ZK-Proofs License
This system acts as a privacy-preserving auditor for Confidential Token-2022 accounts, enabling secure identity attestations without raw data exposure.
Key Features:
- Threshold MPC: 2-of-3 CGGMP21 DKG with no trusted dealer
- Confidential Predicates: Prove balances and holdings without revealing amounts
- Hybrid Proof Modes: MPC-attested (low-latency) and ZK-trustless (blind)
- Token-2022 Native: Built-in support for confidential transfer extensions
- Entropy Budgeting: Prevents data triangulation via leakage tracking
- Audit-Ready: Formally verifiable circuits and UC-secure protocols
| Component | Description |
|---|---|
idmap-core |
Cryptographic core (DKG, threshold signing, R1CS circuits) |
idmap-orchestrator |
Logic layer for MPC session mesh and predicate orchestration |
idmap-gateway |
Axum-based REST/WS interface for wallets and dApps |
| SPL Token-2022 | Integration with Solana confidential transfer extensions |
| Principle | Description |
|---|---|
| Threshold Privacy | Private keys and raw balances never exist in complete form on any single node. |
| Inference Defense | Global entropy budgeting ensures users can't be deanonymized via multiple requests. |
| Resilient by Design | 2-of-3 committee allows one node failure without service interruption. |
| Stateless Proving | Horizontally scalable gateway and prover nodes for high throughput. |
| Crate | Purpose |
|---|---|
| givre | CGGMP21 DKG + Ed25519 threshold signing |
| swanky | Garbled circuits for secure MPC comparisons |
| arkworks | R1CS circuits and Groth16 proving (BLS12-381) |
| axum | High-performance async API gateway |
| tokio | Foundation for the async runtime |
- MPC-Attested Mode: < 500ms (P95)
- ZK-Trustless Mode: < 5s (P95)
- API Throughput: 1,000+ req/s per instance
Built with ❤️ for a private and trustless Solana ecosystem.