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Episode 284: Using Formal Verification on ZK Systems with Jon Stephens
Zero Knowledge
The Flexibility of Verifiers
It depends on how you perform formal verification and exactly how much you kind of constrain the problem. The verifier that I created was actually very flexible in that it used a specification class called temporal specifications which basically state properties over time. And because we were using this very I guess flexible but particular specification language it was able to find attacks that required a series of transactions or that even would require fallback functions to be synthesized. It's always gotten this impression that it was a very precise testing tool but a very limited one. This is sort of surprising that it sort of can find things past what it's been specked for.
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