Kevaundray Wedderburn submits EIP-8450 update to simplify Ethereum's post-quantum plan

The story so far: Ethereum EIP-8450 post-quantum key update

EIP-8450 was updated to add quantum-resistant public key registration for Ethereum validators, with BLS keys authorising registration and replacement. A further update would drop registration through withdrawal address authorisation and its execution layer contracts, letting validators' existing BLS keys handle it…

1. 29 Oct 202604:02 UTC

   Ethereum EIP-8450 update proposes quantum-resistant validator key registration

   The EIP-8450 proposal has been updated to add quantum-resistant public key registration for Ethereum validators, using hash-based cryptography including leanXMSS keys and VRF tree roots. BLS signing keys would authorise registration and replacement of the quantum-resistant keys, with a delay of at least one epoch and replay protection; the proposal remains a draft and has not been deployed.

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2. 29 Oct 202605:03 UTC

   Kevaundray Wedderburn submits EIP-8450 update to simplify Ethereum's post-quantum plan

   Ethereum developer Kevaundray Wedderburn has proposed an update to EIP-8450 that would drop registration of post-quantum keys through withdrawal address authorisation and its execution layer contracts. Validators' existing BLS keys would handle registration and replacement, with a minimum 256-epoch interval and replay protection.

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