# blueprint-crypto-hashing
Hashing and key-derivation primitives for Blueprint services.
## Feature-gated capabilities
- Hashing: SHA2, SHA3/Keccak, BLAKE3.
- KDF: HKDF-SHA256 and Argon2id (`kdf` module).
## When to use
Use this crate for deterministic hashing/KDF logic shared by signing, auth, and protocol flows.
## Related links
- Source: https://github.com/tangle-network/blueprint/tree/main/crates/crypto/hashing