Remove unused functions import and start docs
use hmac::Hmac;
-use functions;
+/// HKDF (HMAC-based Extract-and-Expand Key Derivation Function) as specified in the
+/// [RFC 5869](https://tools.ietf.org/html/rfc5869).
pub enum Hkdf {
hmac_SHA1,
hmac_SHA256,
@@ -8,6 +9,11 @@ pub enum Hkdf {
hmac_SHA512,
}
+/// HKDF (HMAC-based Extract-and-Expand Key Derivation Function) as specified in the
+/// [RFC 5869](https://tools.ietf.org/html/rfc5869).
+///
+/// ...
+
impl Hkdf {
/// Return the used hash function output size in octets
