Module helvetia::hkdf

HKDF helpers

This module contains helpers around the HKDF-related API of the ring crate. For more info on how HKDF works, you can refer to the very well written RFC-5869. Note that it is necessary to understand this RFC, if you want to derive a key using ring, since the ring’s API follows the RFC faithfully.

Functions

derive_key

Derive a new key from an input key using HKDF and HMAC-SHA-256.