X917RNG Class Reference

#include <rng.h>

Inheritance diagram for X917RNG:

RandomNumberGenerator NotCopyable Algorithm Clonable List of all members.

Detailed Description

RNG derived from ANSI X9.17 Appendix C.

Definition at line 34 of file rng.h.

Public Member Functions

 X917RNG (BlockTransformation *cipher, const byte *seed, const byte *deterministicTimeVector=0)
byte GenerateByte ()
 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, size_t size)
 generate random array of bytes
virtual void DiscardBytes (size_t 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, inherited]

generate new random bit and return it

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

Reimplemented in PublicBlumBlumShub.

Definition at line 117 of file cryptlib.cpp.

References RandomNumberGenerator::GenerateByte().

Referenced by XTR_FindPrimesAndGenerator().

void RandomNumberGenerator::GenerateBlock ( byte *  output,
size_t  size 
) [virtual, inherited]

generate random array of bytes

Default implementation is to call GenerateByte() size times.

Reimplemented in KDF2_RNG, NonblockingRng, BlockingRng, and RandomPool.

Definition at line 122 of file cryptlib.cpp.

References RandomNumberGenerator::GenerateByte().

Referenced by PSSR_MEM_Base::ComputeMessageRepresentative(), DL_GroupParameters_DSA::GenerateRandom(), OAEP_Base::Pad(), Integer::Randomize(), PolynomialMod2::Randomize(), and ElGamalBase::SymmetricEncrypt().

void RandomNumberGenerator::DiscardBytes ( size_t  n  )  [virtual, inherited]

generate and discard n bytes

Default implementation is to call GenerateByte() n times.

Reimplemented in ARC4_Base.

Definition at line 148 of file cryptlib.cpp.

References RandomNumberGenerator::GenerateByte().


The documentation for this class was generated from the following files:
Generated on Sat Dec 23 02:07:38 2006 for Crypto++ by  doxygen 1.5.1-p1