Botan::EGD_EntropySource Class Reference

#include <es_egd.h>

Inheritance diagram for Botan::EGD_EntropySource:

Public Member Functions
	EGD_EntropySource (const std::vector< std::string > &)
std::string	name () const
void	poll (Entropy_Accumulator &accum)
	~EGD_EntropySource ()

Detailed Description

EGD Entropy Source

Definition at line 20 of file es_egd.h.

Constructor & Destructor Documentation

EGD_EntropySource()

Botan::EGD_EntropySource::EGD_EntropySource

(

const std::vector< std::string > &

paths

)

EGD_EntropySource constructor

Definition at line 122 of file es_egd.cpp.

   {
   for(size_t i = 0; i != paths.size(); ++i)
      sockets.push_back(EGD_Socket(paths[i]));
   }

~EGD_EntropySource()

Botan::EGD_EntropySource::~EGD_EntropySource

(

)

Definition at line 128 of file es_egd.cpp.

   {
   for(size_t i = 0; i != sockets.size(); ++i)
      sockets[i].close();
   sockets.clear();
   }

Member Function Documentation

name()

std::string Botan::EGD_EntropySource::name ( ) const

inlinevirtual

Returns

name identifying this entropy source

Implements Botan::EntropySource.

Definition at line 23 of file es_egd.h.

{ return "EGD/PRNGD"; }

poll()

void Botan::EGD_EntropySource::poll ( Entropy_Accumulator & accum )

virtual

Gather Entropy from EGD

Implements Botan::EntropySource.

Definition at line 138 of file es_egd.cpp.

   {
   size_t go_get = std::min<size_t>(accum.desired_remaining_bits() / 8, 32);
 
   MemoryRegion<byte>& io_buffer = accum.get_io_buffer(go_get);
 
   for(size_t i = 0; i != sockets.size(); ++i)
      {
      size_t got = sockets[i].read(&io_buffer[0], io_buffer.size());
 
      if(got)
         {
         accum.add(&io_buffer[0], got, 6);
         break;
         }
      }
   }

References Botan::Entropy_Accumulator::add(), Botan::Entropy_Accumulator::desired_remaining_bits(), Botan::Entropy_Accumulator::get_io_buffer(), and Botan::MemoryRegion< T >::size().

---

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

• src/entropy/egd/es_egd.h
• src/entropy/egd/es_egd.cpp