Ethereum Keyed Nonces Proposal Targets Privacy and State Scaling

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Vitalik Buterin proposes keyed nonces to add protocol-level privacy support on Ethereum, strengthening privacy and security for crypto transactions. He recommends dedicated nullifier storage to handle unprunable nullifiers at extreme scale, offering a state-scaling alternative to Ethereum's fully dynamic state. The proposal specifically targets privacy transactions (nullifiers that cannot be pruned) and could enable protocol upgrades that improve state scaling and adoption.
- Vitalik Buterin said keyed nonces could strengthen in-protocol privacy support on Ethereum.
- He said dedicated nullifier storage could handle extreme scale better than the current dynamic state.
- The proposal targets privacy transactions where nullifiers cannot be pruned after use.
Vitalik Buterin said keyed nonces could become more than a privacy upgrade for Ethereum. In an X post, he described them as a possible first step toward a new state scaling strategy built around specialized storage.
The idea focuses on moving certain use cases away from Ethereum’s fully dynamic state. Meanwhile, privacy transactions remain a key example, as nullifiers keep growing over time and cannot be pruned after they enter the system.
Vitalik Explains Keyed Nonces
Buterin said keyed nonces add stronger protocol-level support for privacy solutions. However, he also framed them …
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