zama-ai/fhevm

Features

• Homomorphic Ciphertext Execution - Provides the ability to execute mathematical and boolean operations on encrypted integers without decrypting the underlying data.
• Confidential Smart Contracts - Implements a framework for writing blockchain logic that processes encrypted data to keep transaction details and state private.
• Asynchronous FHE Coprocessors - Provides an asynchronous computation service that offloads resource-intensive encrypted operations to maintain scalability.
• Asynchronous Computation Offloading - Implements an asynchronous coprocessor system to offload resource-intensive encrypted operations and maintain blockchain throughput.
• Confidential Logic Authoring - Provides tooling that allows developers to write privacy-preserving smart contract logic using standard development chains.
• Private Distributed Computation - Runs encrypted computations via a distributed service while managing data verification and event listening.
• Private On-Chain Computation - Executes sensitive calculations on a blockchain while ensuring the underlying data remains encrypted during processing.
• Ciphertext Logic Operations - Provides the ability to execute arithmetic and logical operations on ciphertext without decrypting the underlying values.
• Confidential Smart Contract Execution - Enables the processing of encrypted data on-chain to maintain the confidentiality of transactions and system state.
• External Key Integration - Integrates with MPC-based key management services to delegate cryptographic operations and secure the decryption process.
• Data Decryption - Processes the decryption of ciphertexts to return plaintext or re-encrypted results based on defined user access controls.
• FHE Decryption Gateways - Provides a gateway process to handle public, user, and delegated decryptions of FHE encrypted data.
• Encrypted Data Processing - Utilizes a coprocessor to execute algorithms directly on encrypted data to maintain processor-level blindness.
• Homomorphic Encryption - Integrates fully homomorphic encryption into decentralized applications to perform mathematical operations on ciphertexts.
• Encrypted Arithmetic - Executes high-precision mathematical and boolean operations on encrypted integers.
• Encrypted Integer Computation - Performs arithmetic, boolean, and comparison operations on encrypted integers.
• Coprocessor Computation Offloading - Offloads resource-intensive encrypted calculations to asynchronous coprocessors to improve blockchain throughput and performance.
• FHE Operation Offloading - Moves heavy fully homomorphic encryption operations to an asynchronous coprocessor to improve scalability.
• Key Management Services - Implements a secure system using multi-party computation to manage decryption keys and authorize private data release.
• MPC Key Management - Utilizes multi-party computation to securely protect and manage decryption keys, preventing single points of failure.
• Multi-Party Computation Frameworks - Employs a multi-party computation framework to secure decryption keys by distributing them across a network of nodes.
• Decryption - Manages who can view private blockchain data through programmable logic and secure key management systems.
• Encrypted Data Definitions - Provides a system for specifying encrypted data requirements and managing access control logic within smart contracts.
• Privacy Logic - Enables the definition of access control rules and encrypted data requirements directly within smart contracts.
• Zero-Knowledge Proof Frameworks - Integrates a zero-knowledge proof verifier to ensure the legitimacy of encrypted inputs before on-chain processing.
• Proof Verification Interfaces - Implements high-performance interfaces to verify zero-knowledge proofs, ensuring encrypted inputs are legitimate before on-chain processing.
• FHE Blockchain Frameworks - Implements a full-stack framework for integrating Fully Homomorphic Encryption into smart contracts to enable private computations.
• Confidential Execution Environments - Provides a development environment for writing privacy-preserving blockchain logic that processes encrypted data.
• Encrypted Data Retrieval - Provides a capability to fetch ciphertexts from compatible storage using URLs to facilitate private computations.
• Decryption Request Routing - Forwards decryption requests from smart contracts to a key management core and returns results via blockchain transactions.
• Blockchain Data Synchronization - Implements parallel polling of multiple network nodes to ensure gapless and canonical blockchain data synchronization.
• Cross-Chain State Synchronization - Exports state from a canonical chain and applies it to a replica chain for cross-chain consistency.
• Decryption Request Routing - Implements a mechanism to route decryption requests from contract gateways to the key management core via blockchain transactions.
• Decryption Response Signing - Signs blockchain transactions using private keys to authorize and validate the output of decrypted data.
• Encrypted Type Management - Uses encrypted integer types to store and handle sensitive values within smart contracts.
• Computation Scaling Strategies - Offloads resource-intensive encrypted calculations to an asynchronous coprocessor to increase system throughput.
• Event Driven Messaging - Utilizes an event-driven messaging system to capture and distribute validated blockchain data to downstream services.

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