feat: cache builder deposit signatures for gloas fork transition - #9727
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ensi321
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Aug 4, 2026
| try { | ||
| batchValid = | ||
| signatureSets.length >= 2 | ||
| ? verifyMultipleAggregateSignatures(signatureSets, true, true) |
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I wonder if there can be attackers that submit a bunch of deposits with invalid signature that force us to fall back to verify one by one which makes lodestar hard to keep up.
They only need 1 bad deposit per batch (32 deposits) to nullify all the optimizations here
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this is a valid concern but also the attacker would burn the eth, so it's basically a trade-off here, we want the batch sizes to be large enough to get benefits from batching but not too large so an invalid signature can't waste too much time/compute
| * keyed by the value object. Capped at `maxBuilderDeposits` new verifications per call; a later tick | ||
| * resumes past the cached deposits. Caller guarantees the fork-epoch + non-epoch-transition gates. | ||
| */ | ||
| export function preVerifyBuilderDepositsPreGloas( |
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Can we time-box this? If we run out of time, we should just keep the result on batches that we have verified so far and return, instead of letting this run unbound
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For example, before calling verifyDepositSignatures for a chunk, check how much time left. If no time remaining, give up.
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sounds like a good idea too me if it doesn't add too much complexity
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this is a good idea, will also resolve the invalid signatures concern above
nflaig
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Aug 5, 2026
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Looks pretty good to me, ideally we want this on devnet-8 before the fork happens
nflaig
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Aug 7, 2026
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🎉 This PR is included in v1.46.0 🎉 |
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Motivation
Description
PendingDepositssz type toContainerNodeStructso that we can speed up the loop and cache by the object itselfBuilderDepositSignatureCachePrepareNextSlot2 epochs before gloas transitionAI Assistance Disclosure