Zero-Knowledge & Cryptography Hub

Your curated hub for all discussions related to zero-knowledge proofs, cryptographic concepts, privacy chains, advanced security reasoning, ZK career paths, and interview prep around cryptography-heavy roles.

Cryptography and ZK topics are deeply interconnected with smart contract security, L2 scaling, privacy engineering, and protocol design. This hub acts as your single point of reference for every ZK discussion in AOB.

1. Introduction to Zero-Knowledge & Privacy Concepts

Zero-knowledge proofs — the future of privacy in blockchain?
👉 https://artofblockchain.club/discussion/zero-knowledge-proofs-the-future-of-privacy-in-blockchain

This thread is perfect for beginners wanting to understand:

• Why ZK matters

• Where privacy fits in Web3

• Why protocols invest heavily in ZK-SNARKs and ZK-STARKs

• How ZK unlocks new design spaces (identity, scaling, private computation)

2. ZK Interview Prep: Explanations & Concept Reinforcement

What does zk-SNARK stand for? (Quiz)

👉https://artofblockchain.club/quiz/what-does-zk-snark-stand-for

Essential for interview rounds where companies test your understanding of:

• succinctness

• non-interactivity

• arguments of knowledge

• trusted setup vs no trusted setup

Even seniors get this acronym wrong — knowing it cleanly gives you an edge.

3. Privacy Chains & Cryptography Career Direction

Which privacy blockchains are worth learning and how do you explain them?

👉 https://artofblockchain.club/discussion/which-privacy-blockchains-are-worth-learning-and-how-do-you-explain

A must-read thread if you are targeting:

• Privacy-focused dev roles

• ZK infra teams

• Cryptography R&D

• L1/L2 protocol engineering

Good for attaching “why privacy matters” into your interview narrative.

4. Cryptography Basics Every SC Developer Should Know

Which hash function does Bitcoin use? (Quiz)

👉 https://artofblockchain.club/quiz/which-hash-function-does-bitcoin-use

Although simple, these fundamentals matter for:

• audit reasoning

• understanding zk circuits

• constructing proofs

• knowing differences between SHA-256, Keccak, Poseidon

Interviewers expect even SC devs (not just cryptographers) to understand hashing basics.

6. ZK Scaling, Rollups & L2 Concepts (Foundational Knowledge)

What is a rollup? (Quiz)

👉 https://artofblockchain.club/quiz/what-is-a-rollup

What is sharding in blockchains?

👉 https://artofblockchain.club/quiz/what-is-sharding-in-blockchains

While not purely cryptography, these form the foundation of ZK-based scaling systems like:

• zkSync

• StarkNet

• Scroll

• Polygon zkEVM

Understanding these concepts allows you to answer:

• “Explain how ZK rollups achieve validity.”

• “How is ZK different from optimistic rollups?”

7. Delegatecall, Low-Level Behavior & Cryptographic Security Angle

Which Solidity feature is riskiest with delegatecall? (Quiz)

👉 https://artofblockchain.club/quiz/which-solidity-feature-is-riskiest-if-misused-with-delegatecall

What does delegatecall do? (Quiz)

👉 https://artofblockchain.club/quiz/what-does-delegatecall-do