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Reduce proof size using batched Merkle proofs #10

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andrewmilson opened this issue Nov 14, 2022 · 1 comment
Closed

Reduce proof size using batched Merkle proofs #10

andrewmilson opened this issue Nov 14, 2022 · 1 comment
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enhancement New feature or request

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@andrewmilson
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Batched Merkle proofs allow aggregating multiple Merkle paths into a single proof. The aggregation allows for removing all duplicate internal nodes which significantly decreases the STARK proof size (we're talking 20-40%). Would be great if arkworks or another Rust library could do this (winter-crypto for instance). Implementation in Winterfell: https://github.com/novifinancial/winterfell/blob/main/crypto/src/merkle/proofs.rs#L31
@andrewmilson andrewmilson added the enhancement New feature or request label Nov 14, 2022
@andrewmilson
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andrewmilson commented Aug 20, 2023 •
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Marking closed. The default merkle tree implementation generates and verifies batched merkle proofs now. This was inspired by the way StarkWare's Ethereum verifier works.

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