void NonblockingRng::GenerateBlock(byte *output, size_t size)
{
#ifdef CRYPTOPP_WIN32_AVAILABLE
# ifdef WORKAROUND_MS_BUG_Q258000
static MicrosoftCryptoProvider m_Provider;
# endif
if (!CryptGenRandom(m_Provider.GetProviderHandle(), (DWORD)size, output))
throw OS_RNG_Err("CryptGenRandom");
#else
if (read(m_fd, output, size) != size)
throw OS_RNG_Err("read /dev/urandom");
#endif
}
void RandomNumberGenerator::generateBlock(uint8_t * output, unsigned count)
{
#ifdef WIN32
# ifdef WORKAROUND_MS_BUG_Q258000
static MicrosoftCryptoProvider m_provider;
# endif
if (!CryptGenRandom(m_provider.GetProviderHandle(), count, output))
{
throw std::runtime_error("CryptGenRandom");
}
#else // WIN32
if (read(m_fd, output, count) != count)
{
throw std::runtime_error("read /dev/urandom");
}
#endif // WIN32
}
