#include <random.h>
#include <crypto/sha512.h>
#include <support/cleanse.h>
#include <logging.h>
#include <sync.h>
#include <utiltime.h>
#include <stdlib.h>
#include <chrono>
#include <thread>
#include <fcntl.h>
#include <sys/time.h>
#include <mutex>
#include <openssl/err.h>
#include <openssl/rand.h>

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Functions
void	RandAddSeed ()

void	GetOSRand (unsigned char *ent32)
	Get 32 bytes of system entropy. More...

void	GetRandBytes (unsigned char *buf, int num)
	Functions to gather random data via the OpenSSL PRNG. More...

void	RandAddSeedSleep ()
	Add a little bit of randomness to the output of GetStrongRangBytes. More...

void	GetStrongRandBytes (unsigned char *out, int num)
	Function to gather random data from multiple sources, failing whenever any of those sources fail to provide a result. More...

uint64_t	GetRand (uint64_t nMax)

int	GetRandInt (int nMax)

uint256	GetRandHash ()

bool	Random_SanityCheck ()
	Check that OS randomness is available and returning the requested number of bytes. More...

void	RandomInit ()
	Initialize the RNG. More...

Function Documentation

◆ GetOSRand()

void GetOSRand ( unsigned char * ent32 )

Get 32 bytes of system entropy.

Definition at line 204 of file random.cpp.

◆ GetRand()

uint64_t GetRand ( uint64_t nMax )

Definition at line 354 of file random.cpp.

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◆ GetRandBytes()

void GetRandBytes	(	unsigned char *	buf,
		int	num
	)

Functions to gather random data via the OpenSSL PRNG.

Definition at line 275 of file random.cpp.

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◆ GetRandHash()

uint256 GetRandHash ( )

Definition at line 374 of file random.cpp.

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◆ GetRandInt()

int GetRandInt ( int nMax )

Definition at line 369 of file random.cpp.

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◆ GetStrongRandBytes()

void GetStrongRandBytes	(	unsigned char *	out,
		int	num
	)

Function to gather random data from multiple sources, failing whenever any of those sources fail to provide a result.

Definition at line 319 of file random.cpp.

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◆ RandAddSeed()

void RandAddSeed ( )

Definition at line 132 of file random.cpp.

◆ RandAddSeedSleep()

void RandAddSeedSleep ( )

Add a little bit of randomness to the output of GetStrongRangBytes.

This sleeps for a millisecond, so should only be called when there is no other work to be done.

Definition at line 284 of file random.cpp.

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◆ Random_SanityCheck()

bool Random_SanityCheck ( )

Check that OS randomness is available and returning the requested number of bytes.

Definition at line 413 of file random.cpp.

◆ RandomInit()

void RandomInit ( )

Initialize the RNG.

Definition at line 466 of file random.cpp.