Vitalik Buterin has urged the Ethereum network to employ more automated measures in order to prevent 51% attacks from taking place, a situation whereby dishonest people can control the blocks of the network. During his keynote speech at ETHCC in Brussels, Buterin pointed out the need to have an automated response to such threats to decrease the dependence on social consensus and the community’s decisions.
A 51% attack happens when a specific individual or a group of individuals manages to acquire control over more than half of the network’s mining or validation capability. This could result in censorship and alteration of the transactions on the blockchain. At the moment the Ethereum community would have to come to a consensus manually as to which new fork they wish to implement in order to counter such an attack. Buterin further opines that an automated response would in fact simplify such a process, thus guaranteeing network stability without a lot of input from man.
"We want to make the response to 51% attacks be something that is as automated as possible," Buterin stated. He proposed that validators’ nodes should run software capable of detecting censorship and automatically countering the majority chain, allowing honest nodes to coordinate seamlessly.
While acknowledging the limitations of achieving 100% automation, Buterin believes that any progress in this direction would significantly lessen the burden on the social layer. By having a pre-determined, automated fallback mechanism, the community can focus on maintaining and enhancing the network rather than constantly being on alert for potential threats.
Buterin also highlighted the importance of presenting a clear, winning candidate for a soft fork during such crises. This would provide the community with a concrete option to rally around, further simplifying the response process.
In addition to addressing 51% attacks, Buterin advocated for increased adoption of light clients within Ethereum's infrastructure, particularly in wallets. Light clients, which require less computational power and storage, could enhance the accessibility and decentralization of the network. He also supported the verification of zk-EVMs, which are essential for Layer 2 scaling solutions.
Buterin touched on the looming threat of quantum computing, which could potentially compromise blockchain security. He identified four elements at risk within Ethereum – Merkle trees, consensus signatures, blobs, and user accounts – each requiring unique solutions to ensure quantum resistance.
Beyond security concerns, Buterin called for further simplification of Ethereum's protocols. Simplified protocols would ease development processes and improve user experience, promoting broader adoption and innovation within the ecosystem.
As Ethereum continues to evolve, Buterin's proposals aim to bolster the network's resilience, security, and usability, ensuring it remains a leading platform in the decentralized digital space.
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