Confium Privacy

Confium Privacy is the privacy-preserving-crypto product: 15+ standalone primitives for building applications that compute on shared data without revealing it.

Components

• confium-privacy — PSI, PIR, DP, MPC, ring sigs, blind sigs, adaptor sigs, VRF, VDF, and more
• confium-crypto-zk — ZK proofs of set membership, signature possession
• confium-crypto-vss — Verifiable secret sharing, Paillier, Schnorr, range proofs
• confium-ring — Threshold ring signatures

Concepts

These concepts are specified in the specs repo:

• Private Set Intersection (PSI)
• Multi-party Computation (MPC / SPDZ)
• Differential Privacy (DP)
• Ring signatures

PIR, blind signatures, VRF, and VDF are implemented in confium-privacy but don’t have standalone specs yet — see the Rust API docs for details.

How-to

Practical recipes live in the Cookbook:

• Two-party PSI
• DP aggregation on user telemetry

Reference

• Rust API
• PSI spec
• MPC spec
• DP spec
• Ring sigs spec

In this section

• Concepts — PSI, differential privacy, MPC/OT
• How-to — run PSI, add DP noise, ring signatures
• Reference — CLI

Cross-links

• Confium architecture
• Confium Privacy on the website