Some ways to use ZK-SNARKs for privacy

ZK-SNARKs are a powerful cryptographic tool, and an increasingly important part of the applications that people are building both in the blockchain space and beyond. But they are complicated, both in terms of how they work, and in terms of how you can use them. My previous post explaining ZK-SNARKs focused on the first question, attempting to explain the math behind ZK-SNARKs in a way that's reasonably understandable but still theoretically complete. This post will focus on the second question: how do ZK-SNARKs fit into existing applications, what are some examples of what they can do, what can't they do, and what are some general guidelines for figuring out whether or not ZK-SNARKing some particular application is possible? In particular, this post focuses on applications of ZK-SNARKs for preserving privacy. Suppose that you have a public input \(x\), a private input \(w\), and a (public) function \(f(x, w) \rightarrow \{True, False\}\) that performs some kind of verification on the i

ZK-SNARKs are a powerful cryptographic tool, and an increasingly important part of the applications that people are building both in the blockchain space and beyond. But they are complicated, both in terms of how they work, and in terms of how you can use them. My previous post explaining ZK-SNARKs focused on the first question, attempting to explain the math behind ZK-SNARKs in a way that's reasonably understandable but still theoretically complete. This post will focus on the second question: how do ZK-SNARKs fit into existing applications, what are some examples of what they can do, what ca

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• Sara Du
• Emma Guo