Fhenix Launches CoFHE on Ethereum and Arbitrum for Confidential Smart Contracts

Fhenix has announced that its encrypted computation coprocessor, CoFHE, is now available on Ethereum and Arbitrum networks. This development brings fully homomorphic encryption (FHE) to applications that require confidential calculations using blockchain technology. Key points include a dual-mode token design, partnerships with two design firms, and a Consensys Diligence audit.

The primary goal of Fhenix is to enable institutions to utilize public blockchain infrastructure while keeping sensitive financial information private. The challenge lies in determining how much additional capital confidentiality can attract, given that approximately $14.5 billion in tokenized U.S. Treasury assets have been distributed on these networks.

Fhenix's CoFHE operates by representing selected values as ciphertext and requesting operations on them without converting them into readable numbers. The computation takes place outside the Ethereum or Arbitrum networks, with generated commitments recorded on the host chain. This approach allows for dynamic throughput scaling based on demand.

Developers can use familiar Solidity tooling and an FHE library to integrate CoFHE into their applications. However, the developer experience involves additional complexities, such as handling encrypted values, access permissions, and asynchronous results. Fhenix's dual-mode design addresses the issue of creating separate private representations for confidential transfers or positions within public assets.

This approach avoids the need for additional integration tasks and allows for a single token contract to serve both public and confidential activities. Nevertheless, existing wallets, exchanges, and DeFi applications can only utilize the public interface, while confidential balances require specialized applications.