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fortuna/fortuna.cpp
surtur a1cbbb209e
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handle PRNG state in R_state + accumulator basis
* handle the PRNG state with R_state nested class
* add a private property R holding PRNG state to Fortuna
* add R_state properties as defined in Cryptography Engineering:
  * a generator instance
  * a reseed counter
  * 32 pools that the collected entropy is to be distributed over

* add initial definition of the Pool object and its initialization

* attempt to initialize PRNG in Fortuna constructor. wrap the
  initialization call in a try-catch block like a cultured person
* erase the string used to print data from random_data() after it's been
  used
2021-12-04 00:40:39 +01:00

35 lines
749 B
C++

#ifndef FORTUNA_FORTUNA_CPP
#define FORTUNA_FORTUNA_CPP
#include "fortuna.h"
#include <cryptopp/cryptlib.h>
#include <cryptopp/osrng.h>
#include <cryptopp/hex.h>
#include <cryptopp/filters.h>
#include <cryptopp/serpent.h>
#include <cryptopp/ccm.h>
#include <fmt/core.h>
namespace fortuna {
Fortuna::Fortuna(){
try {
initialize_prng();
} catch(CryptoPP::Exception& e) {
fmt::print(stderr, "{}\n", e.what());
}
}
Fortuna::~Fortuna() = default;
auto Fortuna::random_data(unsigned int n_bytes) -> void {
std::string n{R.Gen.generate_random_data(n_bytes)};
fmt::print("got you {} proper bytes from generate_random_data -> {}\n",
n_bytes, n);
n.erase();
} //random_data
} // namespace fortuna
#endif//FORTUNA_FORTUNA_CPP