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Episode 284: Using Formal Verification on ZK Systems with Jon Stephens
Zero Knowledge
The Flexibility of Verifiers
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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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