HKDF_extract
if (!HKDF_extract(prk, &prk_len, digest, secret, secret_len, salt,
return HKDF_extract(key, keylen, kctx->md, kctx->key,
int HKDF_extract(uint8_t *out_key, size_t *out_len,
if (!HKDF_extract(secrets->extracted_early.data,
if (!HKDF_extract(secrets->extracted_handshake.data,
if (!HKDF_extract(secrets->extracted_master.data,