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// RandGen.h
#ifndef ZIP7_INC_CRYPTO_RAND_GEN_H
#define ZIP7_INC_CRYPTO_RAND_GEN_H
#include "../../../C/Sha256.h"
#ifdef _WIN64
// #define USE_STATIC_SYSTEM_RAND
#endif
#ifdef USE_STATIC_SYSTEM_RAND
#ifdef _WIN32
#include <ntsecapi.h>
#define MY_RAND_GEN(data, size) RtlGenRandom(data, size)
#else
#define MY_RAND_GEN(data, size) getrandom(data, size, 0)
#endif
#else
class CRandomGenerator
{
Byte _buff[SHA256_DIGEST_SIZE];
bool _needInit;
void Init();
public:
CRandomGenerator(): _needInit(true) {}
void Generate(Byte *data, unsigned size);
};
MY_ALIGN (16)
extern CRandomGenerator g_RandomGenerator;
#define MY_RAND_GEN(data, size) g_RandomGenerator.Generate(data, size)
#endif
#endif
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