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RandomNumberGenerator Class Reference

#include <cryptlib.h>

Inheritance diagram for RandomNumberGenerator:

Algorithm Clonable ARC4_Base AutoSeededX917RNG< BLOCK_CIPHER > BlockingRng LC_RNG NonblockingRng PublicBlumBlumShub RandomPool SapphireRNG X917RNG List of all members.

Detailed Description

interface for random number generators

All return values are uniformly distributed over the range specified.

Definition at line 609 of file cryptlib.h.

Public Member Functions

virtual byte GenerateByte ()=0
 generate new random byte and return it

virtual unsigned int GenerateBit ()
 generate new random bit and return it

virtual word32 GenerateWord32 (word32 a=0, word32 b=0xffffffffL)
 generate a random 32 bit word in the range min to max, inclusive

virtual void GenerateBlock (byte *output, unsigned int size)
 generate random array of bytes

virtual void DiscardBytes (unsigned int n)
 generate and discard n bytes

template<class IT> void Shuffle (IT begin, IT end)
 randomly shuffle the specified array, resulting permutation is uniformly distributed

virtual std::string AlgorithmName () const
 returns name of this algorithm, not universally implemented yet

virtual ClonableClone () const
 this is not implemented by most classes yet


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 86 of file cryptlib.cpp.

References GenerateByte().

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

generate random array of bytes

Default implementation is to call GenerateByte() size times.

Reimplemented in NonblockingRng, BlockingRng, and RandomPool.

Definition at line 91 of file cryptlib.cpp.

References GenerateByte().

Referenced by DL_GroupParameters_DSA::GenerateRandom().

void RandomNumberGenerator::DiscardBytes unsigned int  n  )  [virtual]
 

generate and discard n bytes

Default implementation is to call GenerateByte() n times.

Reimplemented in ARC4_Base.

Definition at line 117 of file cryptlib.cpp.

References GenerateByte().


The documentation for this class was generated from the following files:
Generated on Tue Jul 8 23:35:26 2003 for Crypto++ by doxygen 1.3.2