Crypto++
Public Member Functions | Protected Attributes | List of all members
BlockingRng Class Reference

encapsulate /dev/random, or /dev/srandom on OpenBSD More...

#include <osrng.h>

Inheritance diagram for BlockingRng:
RandomNumberGenerator Algorithm Clonable

Public Member Functions

void GenerateBlock (byte *output, size_t size)
 generate random array of bytes
 
virtual void IncorporateEntropy (const byte *input, size_t length)
 update RNG state with additional unpredictable values
 
virtual bool CanIncorporateEntropy () const
 returns true if IncorporateEntropy is implemented
 
virtual byte GenerateByte ()
 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
 
virtual void DiscardBytes (size_t n)
 generate and discard n bytes
 
virtual void GenerateIntoBufferedTransformation (BufferedTransformation &target, const std::string &channel, lword length)
 generate random bytes as input to a BufferedTransformation
 
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
 

Protected Attributes

int m_fd
 

Detailed Description

encapsulate /dev/random, or /dev/srandom on OpenBSD

Definition at line 69 of file osrng.h.

Member Function Documentation

virtual unsigned int RandomNumberGenerator::GenerateBit ( )
virtualinherited

generate new random bit and return it

Default implementation is to call GenerateByte() and return its lowest bit.

Reimplemented in PublicBlumBlumShub.


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