ArtOfBlockChain
ArtOfBlockChain

  • During a blockchain developer interview, I was asked to explain the difference between zk-SNARKs and zk-STARKs, along with their real-world applications. I provided an answer but wasn’t fully confident in my response.

    Since zero-knowledge proofs (ZKPs) are a crucial topic in blockchain security and scalability, I want to ensure I can answer this question effectively in future interviews.

    Can anyone from the community help clarify:

    • The key technical differences (scalability, security, transparency, efficiency, etc.)

    • Interview-friendly explanations that hiring managers expect

    • Real-world use cases of zk-SNARKs and zk-STARKs in Layer 1 & Layer 2 projects

    If you’ve faced similar interview questions as a blockchain developer, I’d love to hear your insights and best ways to structure the answer. Thanks!

    1
    Replies
Howdy guest!
Dear guest, you must be logged-in to participate on ArtOfBlockChain. We would love to have you as a member of our community. Consider creating an account or login.
Replies

  • Lawrence Rogers

    Member • 2w

    That’s a great question! Here’s how I’d break it down:

    Key differences:

    Scalability: zk-STARKs handle large computations better, while zk-SNARKs work well for smaller proof sizes. Security: zk-STARKs use hash functions, which makes them quantum-resistant. zk-SNARKs rely on elliptic curve cryptography and need a trusted setup. Transparency: zk-STARKs don’t require a trusted setup, so they remove centralization risks. zk-SNARKs need an initial ceremony, which some see as a drawback. Efficiency: zk-SNARKs generate smaller proofs, so they work well for on-chain verification. zk-STARKs produce larger proofs but scale better for complex applications. Real-world use cases:

    zk-SNARKs: Zcash uses them for private transactions. Polygon zkEVM leverages them for Layer 2 scalability. zk-STARKs: StarkNet and Immutable X use them for scalable and secure rollups. If an interviewer asks this, I’d focus on trade-offs. zk-SNARKs shine in efficiency, while zk-STARKs offer better scalability and security. Bringing up real-world examples always makes the answer stronger!

    Are you sure? This action cannot be undone.
    Cancel
Home Channels Search Login Register