HEIR: Homomorphic Encryption Intermediate Representation
What is HEIR?
HEIR is a compiler toolchain for fully homomorphic encryption (FHE). We aim to standardize a set of intermediate representations related to FHE, which compiler engineers, hardware designers, and cryptography researchers can build upon to accelerate the research and development of production-strength privacy-first software systems.
HEIR is built in the MLIR framework.
For an overview of the project’s goals, see our talk at FHE.org.
- Provide MLIR dialects for all modern FHE schemes.
- Design MLIR dialects that appropriately abstract across the many flavors of related schemes.
- Design lower-level dialects for optimizing underlying abstract-algebraic operations (e.g., modular polynomial arithmetic).
- Provide hardware accelerator designers an easy path to integrate, so that a wide variety of FHE programs, optimizations, and parameter choices can be compared across accelerators.
- Provide a platform for research into novel FHE optimizations.
- Provide a platform for benchmarking.
- Provide integrations with multiple front-end languages, such as ClangIR and TensorFlow.
TODO(b/287634511): add list of partner companies and universities
The HEIR codebase and documentation are maintained by Google.