Logical Equivalence Proofs

Logical equivalence proofs are a formal method used to demonstrate that two different versions of a program or a specification and an implementation perform exactly the same function. This is often used when refactoring code to ensure that the new implementation does not introduce any new vulnerabilities or logic changes.

By proving that the original and the new code are logically equivalent, developers can have high confidence that the refactoring did not break any existing functionality. This is a powerful technique for maintaining the security of a protocol over time as it evolves.

It ensures that improvements do not come at the cost of security, which is paramount in financial systems.