fx/core/sys/windows/random.c

#include <fcntl.h>
#include <stdint.h>

#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
#include <wincrypt.h>

uint64_t z__fx_platform_random_seed_secure(void)
{
	BOOL status;
	HCRYPTPROV hCryptProv;
	status = CryptAcquireContext(
		&hCryptProv, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT);

	if (status == FALSE) {
		return (uint64_t)-1;
	}

	uint64_t v = 0;
	status = CryptGenRandom(hCryptProv, sizeof v, (BYTE *)&v);

	CryptReleaseContext(hCryptProv, 0);

	return status == TRUE ? v : (uint64_t)-1;
}

uint64_t z__fx_platform_random_seed(void)
{
	return z__fx_platform_random_seed_secure();
}