Vendor
HashCloak
Cryptography R&D lab auditing smart contracts, ZK circuits and cryptographic protocols
About
HashCloak is a cryptography research and development lab and security consultancy that focuses on privacy-first systems. It specializes in zero-knowledge systems, multi-party computation (MPC), threshold cryptography, secure key management and blockchain protocol security. The company describes its team as builders first: it designs cryptographic systems, implements advanced primitives, integrates novel schemes into production environments and audits them with the perspective of engineers who have built similar systems. The audits it lists are smart contract audits, zero-knowledge circuit audits for frameworks such as Plonky2, Halo2, Noir and Circom, protocol design audits, cryptographic primitive audits, governance mechanism reviews, bridging and interoperability audits and VM-level audits. It states experience auditing both the primitives used to build zero-knowledge systems and their implementations. Beyond audits, it offers bespoke R&D to help teams apply cryptography in their products, and its published projects include work on distributed block building and on publicly verifiable, private collaborative machine learning training. Its website publishes audit case studies, and the team shares code on GitHub and research on its blog.
At a glance
- Specializes in zero-knowledge systems, MPC and threshold cryptography
- Audits ZK circuits built with Plonky2, Halo2, Noir and Circom
- Also audits smart contracts, bridges, governance mechanisms and VMs
- Designs and implements cryptographic systems as well as auditing them
- Publishes audit case studies on its website
- Services
- Audit
HashCloak: frequently asked questions
- What services does HashCloak offer?
- According to its public information, HashCloak offers: Audit.
- Is HashCloak verified on smart-contract.com?
- Not yet. This listing was compiled from public information and HashCloak has not claimed it or gone through the vetting process of smart-contract.com.
- How can I get a quote from HashCloak?
- Describe your project once on smart-contract.com: you receive comparable quotes from vendors that match it, in the same format. Development and audit are always entrusted to two independent companies.
Where this information comes from
This listing was compiled from the public pages below and last reviewed on September 24, 2026. The company has not claimed it yet, is not a partner of smart-contract.com and has not been vetted.
Describe your project once. Compare with confidence.
Get comparable quotes from vetted developers, then secure your code with an independent auditor.
Free for clients. No commitment.