VaultBytes OSS Stack

Open-source tools for testing, auditing, and explaining encrypted-inference systems built on Fully Homomorphic Encryption (FHE).

1. FHE Oracle — adversarial precision testing for FHE systems
2. CipherExplain — encrypted explainability under CKKS (BHDR is one kernel inside it; bhdr-oss is the open reference)
3. Fairlearn-FHE — encrypted fairness metrics
4. RegAudit-FHE — signed audit evidence for regulated AI
5. FHE Attack Replay — security regression testing for FHE configurations

Where each tool fits

Encrypted inference system
        │
        ├── FHE Oracle: correctness / precision testing
        ├── Fairlearn-FHE: encrypted fairness metrics
        ├── CipherExplain: encrypted explainability
        ├── RegAudit-FHE: signed audit evidence
        └── FHE Attack Replay: cryptographic regression gates

Repositories

Tool	Repo
FHE Oracle	fhe-oracle-oss
RegAudit-FHE	regaudit-fhe
Fairlearn-FHE	fairlearn-fhe
CipherExplain — BHDR kernel	bhdr-oss
FHE Attack Replay	fhe-attack-replay

License

Each repository carries its own license. See individual READMEs for details.