---

RandomNumberGenerator Class Reference

abstract base class for random number generators. More...

#include <cryptlib.h>

Inheritance diagram for RandomNumberGenerator:

List of all members.

Public Methods
virtual	~RandomNumberGenerator ()
virtual byte	GenerateByte ()=0
	generate new random byte and return it.
virtual unsigned int	GenerateBit ()
	generate new random bit and return it. More...
virtual word32	GenerateWord32 (word32 a=0,word32 b=0xffffffffL)
	generate a random 32 bit word in the range min to max, inclusive. More...
virtual void	GenerateBlock (byte *output,unsigned int size)
	generate random array of bytes. More...
template<class IT> void	Shuffle (IT begin,IT end)
	randomly shuffle the specified array, resulting permutation is uniformly distributed. More...
byte	GetByte ()
unsigned int	GetBit ()
word32	GetLong (word32 a=0,word32 b=0xffffffffL)
word16	GetShort (word16 a=0,word16 b=0xffff)
void	GetBlock (byte *output,unsigned int size)

---

Detailed Description

abstract base class for random number generators.

All return values are uniformly distributed over the range specified.

Definition at line 160 of file cryptlib.h.

---

Constructor & Destructor Documentation

RandomNumberGenerator::~RandomNumberGenerator ( ) [inline, virtual]

Definition at line 164 of file cryptlib.h.

---

Member Function Documentation

unsigned int RandomNumberGenerator::GenerateBit ( ) [virtual]

generate new random bit and return it. Default implementation is to call GenerateByte() and return its parity. Reimplemented in PublicBlumBlumShub. Definition at line 14 of file cryptlib.cpp.

void RandomNumberGenerator::GenerateBlock ( byte * output, unsigned int size ) [virtual]

generate random array of bytes. Reimplemented in NonblockingRng, BlockingRng, and RandomPool. Definition at line 19 of file cryptlib.cpp. Referenced by SecretSharing::Put().

word32 RandomNumberGenerator::GenerateWord32 ( word32 a = 0, word32 b = 0xffffffffL ) [virtual]

generate a random 32 bit word in the range min to max, inclusive. Definition at line 25 of file cryptlib.cpp. Referenced by Shuffle().

unsigned int RandomNumberGenerator::GetBit ( ) [inline]

Definition at line 189 of file cryptlib.h.

void RandomNumberGenerator::GetBlock ( byte * output, unsigned int size ) [inline]

Definition at line 192 of file cryptlib.h.

byte RandomNumberGenerator::GetByte ( ) [inline]

Definition at line 188 of file cryptlib.h.

word32 RandomNumberGenerator::GetLong ( word32 a = 0, word32 b = 0xffffffffL ) [inline]

Definition at line 190 of file cryptlib.h.

word16 RandomNumberGenerator::GetShort ( word16 a = 0, word16 b = 0xffff ) [inline]

Definition at line 191 of file cryptlib.h.

template<class IT> void RandomNumberGenerator::Shuffle ( IT begin, IT end ) [inline]

randomly shuffle the specified array, resulting permutation is uniformly distributed. Definition at line 181 of file cryptlib.h.

---

The documentation for this class was generated from the following files:

• cryptlib.h
• cryptlib.cpp

---