Case Study
Key management with private key sharding for secure, multi‐blockchain transactions.
Based in Israel, Unbound Security is a pioneer in cryptographic key management. The firm developed advanced private key sharding techniques to enhance the security of asymmetric encryption. Their technology leverages secure multi-party computation (MPC), a method that splits cryptographic keys to minimise risk. In November 2021, Coinbase acquired Unbound Security, marking a strategic move into the Israeli market. This acquisition has furthered Unbound Security’s reach, enabling global clients—including leading banks and multinational enterprises—to manage digital assets with confidence.
Unbound Security introduced a pioneering cryptographic product to strengthen asymmetric encryption through private key sharding. However, integrating this product with several blockchains proved difficult, especially when working with networks that offered limited support. The client needed a robust solution to overcome these technical hurdles.
Espeo Software designed and implemented a solution using NodeJS and Java. The system converted raw data and signatures into blockchain transactions, supporting networks such as Tezos, Bitcoin Cash, Litecoin, and Cardano. This project expanded market potential and increased customer confidence through secure, efficient key management.
We began by understanding Unbound Security’s unique cryptographic product and its integration challenges. Our team collaborated closely with stakeholders to identify requirements and outline a strategic roadmap.
We crafted a scalable architecture using NodeJS and Java. The system was designed to convert raw data and signatures into blockchain transactions across Tezos, Bitcoin Cash, Litecoin, and Cardano. Our experts focused on secure key sharding and seamless integration.
Rigorous testing ensured that each component met performance and security standards. We conducted API, frontend, and performance tests, and then deployed the solution in a controlled environment, ensuring smooth handover and immediate impact.
We maintained close communication with the client and end users, providing ongoing support and optimisation. This phase ensured that the solution continued to deliver on its promise of enhanced security and market expansion.
The solution enabled integration with four blockchains, increasing Unbound Security’s market potential and customer confidence.
Robust cryptographic key management, including private key sharding, ensured secure, reliable transactions across multiple networks.
The project paved the way for establishing a tech centre in Israel, reinforcing the company’s position as an industry leader.
Hopefully, we can expand our collaboration in the future.
Espeo Software delivers top-tier work. The developers are not only very skilled but also require minimal oversight and facilitate an effortless outsourcing experience. Their high quality standards add value to the partnership. Internal stakeholders hope to expand the collaboration in the future.
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Understand the technicalities and learn what works, and what does not.
Espeo Software
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ul. Baraniaka 88
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