Formally Verifying OpenZeppelinâs ERC-20 Implementation
ID: 51f8dbd2-c946-5f36-b93b-25ad65f40569
STIX ID: report--51f8dbd2-c946-5f36-b93b-25ad65f40569
Feed Name: CertiK Blog
This report explains CertiK's formal-verification approach for ERC-20 token contracts, illustrating property templates and LTL formulas used to verify correct transferFrom allowance updates and failure conditions. It presents verification results showing OpenZeppelin's ERC-20 reference implementation meets the checked properties and notes that derived contracts (e.g., PancakeSwap's CAKE token) must also be verified because overrides or state changes in derived contracts can introduce errors.
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