Ethereum co-founder Vitalik Buterin has revealed a comprehensive plan to improve privacy on the network. Outlined in an April 11 roadmap, Buterin advocates for integrating privacy features into Ether wallets and enhancing privacy norms in the Ethereum ecosystem. He calls for adopting privacy solutions like Railgun or Privacy Pools within existing wallets, enabling users to send from a shielded balance by default. Buterin also recommends significant changes to decentralized finance (DeFi) and decentralized applications (DApps), suggesting a model where each application uses a single address to promote privacy. He acknowledges the necessary user convenience sacrifices but believes this is a practical approach to decouple activities across various platforms. Additionally, Buterin highlights essential protocol changes, including the implementation of mechanisms to facilitate privacy without relays or public transaction broadcasting. He proposes using trusted execution environments (TEEs) as a short-term solution for RPC interactions to protect users' data. As a long-term goal, he suggests transitioning to private information retrieval systems to enhance data privacy without compromising user anonymity. Other recommendations include connecting wallets to multiple RPC servers and developing proof-aggregation protocols for privacy. This roadmap seeks to address critical privacy shortcomings in Ethereum, paving the way for a more secure and private user experience.

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