void FIPS_drbg_set_app_data(DRBG_CTX *ctx, void *app_data);
size_t FIPS_drbg_get_blocklength(DRBG_CTX *dctx);
int FIPS_drbg_get_strength(DRBG_CTX *dctx);
+void FIPS_drbg_set_check_interval(DRBG_CTX *dctx, int interval);
DRBG_CTX *FIPS_get_default_drbg(void);
const RAND_METHOD *FIPS_drbg_method(void);