Concrete — Zama's Fully Homomorphic Encryption Compiler

Zama's Concrete is a fully homomorphic encryption (FHE) compiler designed to simplify the complexities of FHE for developers by handling noise management, crypto parameter selection, and operation ordering. Utilizing MLIR (Multi-Level Intermediate Representation), the compiler expects input in MLIR format and supports various APIs, including Python, C++, and C, along with a CLI tool for debugging. The Python API offers an accessible setup for compiling and running FHE programs, such as performing encrypted additions and matrix multiplications. The compilation process involves generating keys, encrypting inputs, executing the compiled function, and decrypting results, with crypto parameters automatically determined by the compiler. Concrete Python serves as a frontend layer, translating user input into MLIR, though the open-source nature of Concrete encourages the development of custom frontends. The Concrete Compiler facilitates the creation of encrypted computations without requiring extensive cryptographic knowledge, supporting further exploration and innovation in the FHE space.