Add missing header changes from previous commit
extern int s2n_hkdf(struct s2n_hmac_state *hmac, s2n_hmac_algorithm alg, const struct s2n_blob *salt,
const struct s2n_blob *key, const struct s2n_blob *info, struct s2n_blob *output);
+
+extern int s2n_hkdf_extract(struct s2n_hmac_state *hmac, s2n_hmac_algorithm alg, const struct s2n_blob *salt,
+ const struct s2n_blob *key, struct s2n_blob *pseudo_rand_key);
+
+extern int s2n_hkdf_expand_label(struct s2n_hmac_state *hmac, s2n_hmac_algorithm alg, const struct s2n_blob *secret, const struct s2n_blob *label,
+ const struct s2n_blob *context, struct s2n_blob *output);
