Crypto++  5.6.5
Free C++ class library of cryptographic schemes
Public Member Functions | List of all members
AutoSeededRandomPool Class Reference

Automatically Seeded Randomness Pool. More...

+ Inheritance diagram for AutoSeededRandomPool:

Public Member Functions

 AutoSeededRandomPool (bool blocking=false, unsigned int seedSize=32)
 Construct an AutoSeededRandomPool. More...
 
void Reseed (bool blocking=false, unsigned int seedSize=32)
 Reseed an AutoSeededRandomPool. More...
 
- Public Member Functions inherited from RandomPool
 RandomPool ()
 Construct a RandomPool.
 
bool CanIncorporateEntropy () const
 Determines if a generator can accept additional entropy. More...
 
void IncorporateEntropy (const byte *input, size_t length)
 Update RNG state with additional unpredictable values. More...
 
void GenerateIntoBufferedTransformation (BufferedTransformation &target, const std::string &channel, lword size)
 Generate random bytes into a BufferedTransformation. More...
 
void Put (const byte *input, size_t length)
 
- Public Member Functions inherited from RandomNumberGenerator
virtual byte GenerateByte ()
 Generate new random byte and return it. More...
 
virtual unsigned int GenerateBit ()
 Generate new random bit and return it. More...
 
virtual word32 GenerateWord32 (word32 min=0, word32 max=0xffffffffUL)
 Generate a random 32 bit word in the range min to max, inclusive. More...
 
virtual void GenerateBlock (byte *output, size_t size)
 Generate random array of bytes. More...
 
virtual void DiscardBytes (size_t n)
 Generate and discard n bytes. More...
 
template<class IT >
void Shuffle (IT begin, IT end)
 Randomly shuffle the specified array. More...
 
- Public Member Functions inherited from Algorithm
 Algorithm (bool checkSelfTestStatus=true)
 Interface for all crypto algorithms. More...
 
virtual std::string AlgorithmName () const
 Provides the name of this algorithm. More...
 
- Public Member Functions inherited from Clonable
virtual ClonableClone () const
 Copies this object. More...
 

Detailed Description

Automatically Seeded Randomness Pool.

This class seeds itself using an operating system provided RNG. AutoSeededRandomPool was suggested by Leonard Janke.

Definition at line 151 of file osrng.h.

Constructor & Destructor Documentation

AutoSeededRandomPool::AutoSeededRandomPool ( bool  blocking = false,
unsigned int  seedSize = 32 
)
inlineexplicit

Construct an AutoSeededRandomPool.

Parameters
blockingcontrols seeding with BlockingRng or NonblockingRng
seedSizethe size of the seed, in bytes

Use blocking to choose seeding with BlockingRng or NonblockingRng. The parameter is ignored if only one of these is available.

Definition at line 159 of file osrng.h.

Member Function Documentation

void AutoSeededRandomPool::Reseed ( bool  blocking = false,
unsigned int  seedSize = 32 
)

Reseed an AutoSeededRandomPool.

Parameters
blockingcontrols seeding with BlockingRng or NonblockingRng
seedSizethe size of the seed, in bytes

Definition at line 261 of file osrng.cpp.


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