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1 | /* apps/winrand.c */ |
2 | /* ==================================================================== | |
3 | * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in | |
14 | * the documentation and/or other materials provided with the | |
15 | * distribution. | |
16 | * | |
17 | * 3. All advertising materials mentioning features or use of this | |
18 | * software must display the following acknowledgment: | |
19 | * "This product includes software developed by the OpenSSL Project | |
20 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
21 | * | |
22 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
23 | * endorse or promote products derived from this software without | |
24 | * prior written permission. For written permission, please contact | |
25 | * openssl-core@openssl.org. | |
26 | * | |
27 | * 5. Products derived from this software may not be called "OpenSSL" | |
28 | * nor may "OpenSSL" appear in their names without prior written | |
29 | * permission of the OpenSSL Project. | |
30 | * | |
31 | * 6. Redistributions of any form whatsoever must retain the following | |
32 | * acknowledgment: | |
33 | * "This product includes software developed by the OpenSSL Project | |
34 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
35 | * | |
36 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
37 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
38 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
39 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
40 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
41 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
42 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
43 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
44 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
45 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
46 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
47 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
48 | * ==================================================================== | |
49 | * | |
50 | * This product includes cryptographic software written by Eric Young | |
51 | * (eay@cryptsoft.com). This product includes software written by Tim | |
52 | * Hudson (tjh@cryptsoft.com). | |
53 | * | |
54 | */ | |
55 | ||
c80fd6b2 MC |
56 | /*- |
57 | * Usage: winrand [filename] | |
a1a96e54 UM |
58 | * |
59 | * Collects entropy from mouse movements and other events and writes | |
60 | * random data to filename or .rnd | |
61 | */ | |
62 | ||
63 | #include <windows.h> | |
64 | #include <openssl/opensslv.h> | |
65 | #include <openssl/rand.h> | |
66 | ||
67 | LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); | |
68 | const char *filename; | |
69 | ||
70 | int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, | |
71 | PSTR cmdline, int iCmdShow) | |
72 | { | |
73 | static char appname[] = "OpenSSL"; | |
74 | HWND hwnd; | |
75 | MSG msg; | |
76 | WNDCLASSEX wndclass; | |
77 | char buffer[200]; | |
78 | ||
79 | if (cmdline[0] == '\0') | |
80 | filename = RAND_file_name(buffer, sizeof buffer); | |
81 | else | |
82 | filename = cmdline; | |
83 | ||
84 | RAND_load_file(filename, -1); | |
85 | ||
86 | wndclass.cbSize = sizeof(wndclass); | |
87 | wndclass.style = CS_HREDRAW | CS_VREDRAW; | |
88 | wndclass.lpfnWndProc = WndProc; | |
89 | wndclass.cbClsExtra = 0; | |
90 | wndclass.cbWndExtra = 0; | |
91 | wndclass.hInstance = hInstance; | |
92 | wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION); | |
93 | wndclass.hCursor = LoadCursor(NULL, IDC_ARROW); | |
94 | wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH); | |
95 | wndclass.lpszMenuName = NULL; | |
96 | wndclass.lpszClassName = appname; | |
97 | wndclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION); | |
98 | RegisterClassEx(&wndclass); | |
99 | ||
100 | hwnd = CreateWindow(appname, OPENSSL_VERSION_TEXT, | |
101 | WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, | |
102 | CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); | |
103 | ||
104 | ShowWindow(hwnd, iCmdShow); | |
105 | UpdateWindow(hwnd); | |
106 | ||
107 | ||
108 | while (GetMessage(&msg, NULL, 0, 0)) | |
109 | { | |
110 | TranslateMessage(&msg); | |
111 | DispatchMessage(&msg); | |
112 | } | |
113 | ||
114 | return msg.wParam; | |
115 | } | |
116 | ||
117 | LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam) | |
118 | { | |
119 | HDC hdc; | |
120 | PAINTSTRUCT ps; | |
121 | RECT rect; | |
a1a96e54 UM |
122 | static int seeded = 0; |
123 | ||
124 | switch (iMsg) | |
125 | { | |
126 | case WM_PAINT: | |
127 | hdc = BeginPaint(hwnd, &ps); | |
128 | GetClientRect(hwnd, &rect); | |
129 | DrawText(hdc, "Seeding the PRNG. Please move the mouse!", -1, | |
130 | &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER); | |
131 | EndPaint(hwnd, &ps); | |
132 | return 0; | |
133 | ||
134 | case WM_DESTROY: | |
135 | PostQuitMessage(0); | |
136 | return 0; | |
137 | } | |
138 | ||
139 | if (RAND_event(iMsg, wParam, lParam) == 1 && seeded == 0) | |
140 | { | |
141 | seeded = 1; | |
142 | if (RAND_write_file(filename) <= 0) | |
143 | MessageBox(hwnd, "Couldn't write random file!", | |
144 | "OpenSSL", MB_OK | MB_ICONERROR); | |
145 | PostQuitMessage(0); | |
146 | } | |
147 | ||
148 | return DefWindowProc(hwnd, iMsg, wParam, lParam); | |
149 | } |