Post-quantum cryptography SaaS API supporting ML-KEM (Kyber) and ML-DSA (Dilithium) algorithms. Provides keypair management and cryptographic operations (encrypt, decrypt, sign, verify). ## Authentication - **JWT Bearer Token** — user-based auth, obtained from `/auth/login` or `/auth/register` - **API Key (header)** — programmatic access via `X-API-Key` header - **API Key (query)** — programmatic access via `?api_key=` query parameter ## Quick Start 1. Register → `POST /auth/register` 2. Login → `POST /auth/login` → copy `data.token` 3. Generate keypair → `POST /generate-keypair` 4. Encrypt / Sign with the keypair ID