What Are the Key Differences between zk-SNARKs and zk-STARKs?

zk-SNARKs (Zero-Knowledge Succinct Non-Interactive Argument of Knowledge) require a trusted setup, meaning initial parameters must be generated securely. They produce smaller proofs and are faster to verify. zk-STARKs (Zero-Knowledge Scalable Transparent Argument of Knowledge) are transparent, meaning they do not require a trusted setup.

They are post-quantum secure but generally produce larger proofs and are slower to verify. Both are crucial for scaling and privacy.