Botan
2.19.3
Crypto and TLS for C&
src
lib
entropy
win32_stats
es_win32.cpp
Go to the documentation of this file.
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/*
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* (C) 1999-2009,2016,2020 Jack Lloyd
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*
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* Botan is released under the Simplified BSD License (see license.txt)
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*/
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#include <botan/internal/es_win32.h>
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#define NOMINMAX 1
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#define _WINSOCKAPI_
// stop windows.h including winsock.h
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#include <windows.h>
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namespace
Botan
{
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size_t
Win32_EntropySource::poll
(
RandomNumberGenerator
& rng)
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{
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rng.
add_entropy_T
(::GetTickCount());
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rng.
add_entropy_T
(::GetMessagePos());
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rng.
add_entropy_T
(::GetMessageTime());
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rng.
add_entropy_T
(::GetInputState());
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rng.
add_entropy_T
(::GetCurrentProcessId());
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rng.
add_entropy_T
(::GetCurrentThreadId());
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SYSTEM_INFO sys_info;
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::GetSystemInfo(&sys_info);
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rng.
add_entropy_T
(sys_info);
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MEMORYSTATUSEX mem_info;
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::GlobalMemoryStatusEx(&mem_info);
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rng.
add_entropy_T
(mem_info);
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POINT point;
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::GetCursorPos(&point);
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rng.
add_entropy_T
(point);
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::GetCaretPos(&point);
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rng.
add_entropy_T
(point);
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/*
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Potential other sources to investigate
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GetProductInfo
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GetComputerNameExA
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GetSystemFirmwareTable
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GetVersionExA
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GetProcessorSystemCycleTime
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GetProcessHandleCount(GetCurrentProcess())
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GetThreadTimes(GetCurrentThread())
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QueryThreadCycleTime
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QueryIdleProcessorCycleTime
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QueryUnbiasedInterruptTime
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*/
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// We assume all of the above is basically junk
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return
0;
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}
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}
Botan::RandomNumberGenerator
Definition
rng.h:26
Botan::RandomNumberGenerator::add_entropy_T
void add_entropy_T(const T &t)
Definition
rng.h:69
Botan::Win32_EntropySource::poll
size_t poll(RandomNumberGenerator &rng) override
Definition
es_win32.cpp:15
Botan
Definition
alg_id.cpp:13
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