KT2

KeyTree2 (KT2) is a 2nd generation, quantum-resistant cryptographic library used for Atlas' Data Access Layer. It is effectively a wrapper around multiple cryptographic primitives:

• Symmetric encryption: AES-256-GCM from ring
• Signatures: modified Dilithium3 from CRYSTALS (we've reduced SHAKE256's rounds down to 12), taken from crystals-dilithium
• Hashes: BLAKE3 from blake3
• Key encapsulation: Kyber768 from CRYSTALS from safepqckyber

Use at Your Own Risk

> This library has not yet undergone a formal security audit by a recognized authority. As a result, there may be unknown security vulnerabilities, weaknesses, or potential flaws in the code. Users are advised to exercise caution when implementing or using this code.

Build

bash cargo build --release

How to use

```rust use d3::Keypair;

let keypair = Keypair::generate(Some(&seed)); let sk = keypair.secret; // pk is also available as keypair.public let signature = keypair.sign(&msg); // public key can now be separately derived from the secret key let pk = PublicKey::fromsk(&sk); let isverified = pk.verify(&msg, &signature); ```

Test

bash cargo test

Benchmarks

Benchmarks are run using criterion.rs: bash cargo bench Running on an Apple M1 Max

| Benchmark | time | | :--- |:----------| | keypair generation | 93.799 µs | | signing | 125.73 µs | | signature verification | 82.825 µs |

Docs

bash cargo doc --open

Contributor Agreement

By contributing to this repository, you agree that your contributions will be licensed under the GPLv3 License.