fhEVM testing

It's a fhEVM testing project. There used to be a dilemma in blockchain: keep your application and user data on-chain, allowing everyone to see it, or keep it privately off-chain and lose contract composability. Thanks to a breakthrough in homomorphic encryption, Zama’s fhEVM makes it possible to run confidential smart contracts on encrypted data, guaranteeing both confidentiality and composability.

Zama’s fhEVM enables confidential smart contracts using fully homomorphic encryption (FHE)

• End-to-end encryption of transactions and state: Data included in transactions is encrypted and never visible to anyone.
• Composability and data availability on-chain: States are updated while remaining encrypted at all times.
• No impact on existing dapps and state: Encrypted state co-exist alongside public one, and doesn't impact existing dapps.

Developers can write confidential smart contracts without learning cryptography

• Solidity Integration: fhEVM contracts are simple solidity contracts that are built using traditional solidity toolchains.
• Simple Developer Experience: Developers can use the euint data types to mark which part of their contracts should be private.
• Programmable Privacy: All the logic for access control of encrypted states is defined by developers in their smart contracts.