OSSL_ALG_PARAM_MAC
if (OSSL_PARAM_locate_const(settables, OSSL_ALG_PARAM_MAC))
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_ALG_PARAM_MAC, "HMAC", 0);
# define OSSL_DRBG_PARAM_MAC OSSL_ALG_PARAM_MAC
# define OSSL_KDF_PARAM_MAC OSSL_ALG_PARAM_MAC
&& (p = OSSL_PARAM_locate_const(params, OSSL_ALG_PARAM_MAC)) != NULL) {
p = OSSL_PARAM_locate_const(params, OSSL_ALG_PARAM_MAC);
params[1] = OSSL_PARAM_construct_utf8_string(OSSL_ALG_PARAM_MAC,