OpenTNL - TNL::Random Namespace Reference

TNL::Random Namespace Reference

Detailed Description

The Random namespace is an interface to a cryptographically secure pseudo random number generator (PRNG).

Internally the Random namespace uses the Yarrow PRNG algorithm.

Functions

void addEntropy (const U8 *randomData, U32 dataLen)

Adds random "seed" data to the random number generator.

void read (U8 *outBuffer, U32 randomLen)

Reads random byte data from the random number generator.

U32 readI ()

Reads a 0...U32_MAX random number from the random number generator.

U32 readI (U32 rangeStart, U32 rangeEnd)

Reads a random number between rangeStart and rangeEnd inclusive from the random number generator.

F32 readF ()

Reads a floating point value from 0 to 1 from the random number generator.

bool readB ()

Returns a single random bit.

void * getState ()

Returns an opaque pointer to the random number generator's internal state for use in certain encryption functions.

Function Documentation

void addEntropy ( const U8 * randomData,

U32 dataLen

)

Adds random "seed" data to the random number generator.

void read ( U8 * outBuffer,

U32 randomLen

)

Reads random byte data from the random number generator.

U32 readI ( )

Reads a 0...U32_MAX random number from the random number generator.

U32 readI ( U32 rangeStart,

U32 rangeEnd

)

Reads a random number between rangeStart and rangeEnd inclusive from the random number generator.

F32 readF ( )

Reads a floating point value from 0 to 1 from the random number generator.

bool readB ( )

Returns a single random bit.

void* getState ( )

Returns an opaque pointer to the random number generator's internal state for use in certain encryption functions.


Functions
void	addEntropy (const U8 *randomData, U32 dataLen)
	Adds random "seed" data to the random number generator.
void	read (U8 *outBuffer, U32 randomLen)
	Reads random byte data from the random number generator.
U32	readI ()
	Reads a 0...U32_MAX random number from the random number generator.
U32	readI (U32 rangeStart, U32 rangeEnd)
	Reads a random number between rangeStart and rangeEnd inclusive from the random number generator.
F32	readF ()
	Reads a floating point value from 0 to 1 from the random number generator.
bool	readB ()
	Returns a single random bit.
void *	getState ()
	Returns an opaque pointer to the random number generator's internal state for use in certain encryption functions.