Vitalik Buterin Unveils Kohaku Privacy Framework at Devcon

Illustration showing Ethereum privacy technologies evolving through Kohaku framework

A New Modular Approach to On-Chain Privacy

Vitalik Buterin has unveiled the Kohaku privacy framework at Devcon, highlighting a major step forward in Ethereum’s approach to privacy and security. Developed by the Ethereum Foundation, Kohaku is an open-source, modular system designed to give users enhanced control over their privacy while remaining compatible with Ethereum’s transparent ecosystem.

Integrating Existing Privacy Protocols

Kohaku currently incorporates components from leading on-chain privacy solutions such as Railgun and Privacy Pools. These integrations allow developers to build wallet features that offer optional privacy protections without sacrificing composability, security, or regulatory clarity.

Opt-In Privacy for Ethereum Wallets

A central goal of Kohaku is to provide Ethereum-connected wallets with the ability to offer opt-in privacy. This ensures users can protect sensitive information when necessary while keeping transparency available for typical transactions, compliance needs, or public activity.

Exploring Future Additions: Mixnets and ZK Browsers

Looking ahead, the Kohaku team is researching additional privacy layers, including mixnets for network-level protection and ZK-enabled browsers that could provide fully private interaction across decentralized applications. These potential expansions aim to make Ethereum privacy more accessible, more granular, and deeply integrated across the ecosystem.

A Step Toward User-Centric Privacy

The introduction of Kohaku underscores Ethereum’s long-term commitment to privacy as a fundamental component of digital autonomy. With increasing global scrutiny and rising demand for secure personal data management, the framework positions Ethereum to support privacy in a responsible, modular, and future-proof way.