The Holy Grail of Crypto Privacy: Encrypted Ethereum, FHE & Living Forever | Rand Hindi, Zama Co-Founder

What It Covers

Rand Hindi explains how Zama uses fully homomorphic encryption (FHE) to bring privacy to Ethereum transactions without bridging to new chains, enabling confidential balances and transfers while maintaining composability and public verifiability.

Key Questions Answered

• •FHE vs ZK for Privacy: Fully homomorphic encryption enables computation on encrypted data with composability, unlike zero-knowledge proofs which only prove statements without allowing programmable privacy. FHE achieves security, public verifiability, and composability simultaneously, making it optimal for confidential blockchain applications.
• •Shielding Mechanism: Users convert ERC-20 tokens like USDC into confidential tokens through smart contracts on Ethereum, paying standard gas fees plus small Zama token fees for encryption verification and decryption. The process requires no bridging, maintaining Ethereum's liquidity and security.
• •Decentralized Decryption: Thirteen reputable entities including Ledger, Fireblocks, and Layer Zero split the decryption key using multi-party computation, requiring two-thirds majority to decrypt any data. This prevents single points of failure while maintaining cryptographic security against quantum computers.
• •Performance Scaling: Zama currently supports thousands of transactions per second on CPUs, with GPU deployment planned for early 2026 targeting 500-1000 TPS per chain. Custom ASIC chips in development could enable 100,000 TPS on single servers at fraction of current costs.