blob: 3a175bf19d57848f450974142391e82956e0c2c1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/*
* (C) 1999-2009,2016,2020 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include <botan/internal/es_win32.h>
#define NOMINMAX 1
#define _WINSOCKAPI_ // stop windows.h including winsock.h
#include <windows.h>
namespace Botan {
size_t Win32_EntropySource::poll(RandomNumberGenerator& rng)
{
rng.add_entropy_T(::GetTickCount());
rng.add_entropy_T(::GetMessagePos());
rng.add_entropy_T(::GetMessageTime());
rng.add_entropy_T(::GetInputState());
rng.add_entropy_T(::GetCurrentProcessId());
rng.add_entropy_T(::GetCurrentThreadId());
SYSTEM_INFO sys_info;
::GetSystemInfo(&sys_info);
rng.add_entropy_T(sys_info);
MEMORYSTATUSEX mem_info;
::GlobalMemoryStatusEx(&mem_info);
rng.add_entropy_T(mem_info);
POINT point;
::GetCursorPos(&point);
rng.add_entropy_T(point);
::GetCaretPos(&point);
rng.add_entropy_T(point);
/*
Potential other sources to investigate
GetProductInfo
GetComputerNameExA
GetSystemFirmwareTable
GetVersionExA
GetProcessorSystemCycleTime
GetProcessHandleCount(GetCurrentProcess())
GetThreadTimes(GetCurrentThread())
QueryThreadCycleTime
QueryIdleProcessorCycleTime
QueryUnbiasedInterruptTime
*/
// We assume all of the above is basically junk
return 0;
}
}
|
