Gradual Verification for Smart Contracts

arXiv:2311.13351v2 Announce Type: replace
Abstract: Blockchains facilitate secure resource transactions through smart contracts, yet these digital agreements are prone to vulnerabilities, particularly when interacting with external contracts, leading to substantial monetary losses. Traditional verification techniques fall short in providing comprehensive security assurances, especially against re-entrancy attacks, due to the unavailable implementations of external contracts. This paper introduces an incremental approach: gradual verification. We combine static and dynamic verification techniques to enhance security, guarantee soundness and flexibility, and optimize …

arxiv assurances attacks blockchains contracts cs.cr cs.lo cs.pl digital digital agreements external losses resource security smart smart contracts techniques transactions verification vulnerabilities