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arXiv · 2105.06009

Verification of the Incremental Merkle Tree Algorithm with Dafny

Franck Cassez
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Abstract

The Deposit Smart Contract (DSC) is an instrumental component of the Ethereum 2.0 Phase 0 infrastructure. We have developed the first machine-checkable version of the incremental Merkle tree algorithm used in the DSC. We present our new and original correctness proof of the algorithm along with the Dafny machine-checkable version. The main results are: 1) a new proof of total correctness; 2) a software artefact with the proof in the form of the complete Dafny code base and 3) new provably correct optimisations of the algorithm.

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Franck Cassez. 2021-05-13. Verification of the Incremental Merkle Tree Algorithm with Dafny. https://arxiv.org/abs/2105.06009

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