In 2026, you're going to hear a lot more about privacy tech on Ethereum—ZK and FHE. If you're still not familiar with them, this thread is for you:
Zero-Knowledge Proofs (ZK) and Fully Homomorphic Encryption (FHE) are two leading privacy-preserving technologies in blockchain, particularly for Ethereum.
- ZK allows a prover to demonstrate the validity of a computation without revealing underlying data (the "witness"),
- while FHE enables computations on encrypted data without ever decrypting it, producing an encrypted result.
Both aim to enhance privacy and confidentiality, but they differ significantly in approach, trade-offs, and current applicability.
🧵Below is a detailed analysis 👇

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