#define OSSL_KDF_PARAM_X942_USE_KEYBITS "use-keybits"
#define OSSL_KDF_PARAM_HMACDRBG_ENTROPY "entropy"
#define OSSL_KDF_PARAM_HMACDRBG_NONCE "nonce"
+#define OSSL_KDF_PARAM_THREADS "threads" /* uint32_t */
+#define OSSL_KDF_PARAM_EARLY_CLEAN "early_clean" /* uint32_t */
+#define OSSL_KDF_PARAM_ARGON2_AD "ad" /* octet string */
+#define OSSL_KDF_PARAM_ARGON2_LANES "lanes" /* uint32_t */
+#define OSSL_KDF_PARAM_ARGON2_MEMCOST "memcost" /* uint32_t */
+#define OSSL_KDF_PARAM_ARGON2_VERSION "version" /* uint32_t */
/* Known KDF names */
#define OSSL_KDF_NAME_HKDF "HKDF"