Cryptography Engineering & Protocol Design

What we do

We take a system from first principles all the way to a working implementation: defining the security goals, choosing the right primitives, writing a rigorous specification, analyzing it for soundness and privacy, and building the code that ships. We design scalable and privacy-preserving protocols, working with a wide range of primitives such as zero-knowledge proof systems, threshold signatures, and secure multi-party computation.

How we work

A protocol engagement moves through the layers that turn an idea into something deployable, and we can pick up at whichever layer you need:

1. Specification from first principles. We translate a regulatory, financial, or privacy requirement into precise security goals — what must be proven, what must stay hidden, and what the adversary is assumed to be able to do — and write a specification precise enough to build and audit against.
2. Cryptographic design. We choose and compose the primitives — zkSNARK proof systems, Pedersen and other commitments, threshold signatures, secure multi-party computation (MPC), Merkle-tree set-membership, nullifiers, and key derivation — along with techniques like proof chaining that glue proofs across different proof systems into one statement.
3. Implementation and integration. We build the protocol in production languages and wire it into the surrounding system — including on-chain verification, such as zkSNARK verifiers written in Solidity and Ethereum smart-contract integration, so results can be trusted by parties outside the original network.

Why it matters

The strongest cryptographic protocols are the ones designed with soundness and privacy as first-class goals from the very first draft, not bolted on afterward. Because we also audit and formally verify proof systems, we design with the failure modes in mind — under-constrained circuits, broken soundness, leaky commitments — that break protocols built by teams who only see one side of the problem.