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winrand.c 5.0 KB

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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. /* Usage: winrand [filename]
  56. *
  57. * Collects entropy from mouse movements and other events and writes
  58. * random data to filename or .rnd
  59. */
  60. #include <windows.h>
  61. #include <openssl/opensslv.h>
  62. #include <openssl/rand.h>
  63. LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
  64. const char *filename;
  65. int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
  66. PSTR cmdline, int iCmdShow)
  67. {
  68. static char appname[] = "OpenSSL";
  69. HWND hwnd;
  70. MSG msg;
  71. WNDCLASSEX wndclass;
  72. char buffer[200];
  73. if (cmdline[0] == '\0')
  74. filename = RAND_file_name(buffer, sizeof buffer);
  75. else
  76. filename = cmdline;
  77. RAND_load_file(filename, -1);
  78. wndclass.cbSize = sizeof(wndclass);
  79. wndclass.style = CS_HREDRAW | CS_VREDRAW;
  80. wndclass.lpfnWndProc = WndProc;
  81. wndclass.cbClsExtra = 0;
  82. wndclass.cbWndExtra = 0;
  83. wndclass.hInstance = hInstance;
  84. wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
  85. wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
  86. wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
  87. wndclass.lpszMenuName = NULL;
  88. wndclass.lpszClassName = appname;
  89. wndclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
  90. RegisterClassEx(&wndclass);
  91. hwnd = CreateWindow(appname, OPENSSL_VERSION_TEXT,
  92. WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT,
  93. CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);
  94. ShowWindow(hwnd, iCmdShow);
  95. UpdateWindow(hwnd);
  96. while (GetMessage(&msg, NULL, 0, 0))
  97. {
  98. TranslateMessage(&msg);
  99. DispatchMessage(&msg);
  100. }
  101. return msg.wParam;
  102. }
  103. LRESULT CALLBACK WndProc(HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
  104. {
  105. HDC hdc;
  106. PAINTSTRUCT ps;
  107. RECT rect;
  108. static int seeded = 0;
  109. switch (iMsg)
  110. {
  111. case WM_PAINT:
  112. hdc = BeginPaint(hwnd, &ps);
  113. GetClientRect(hwnd, &rect);
  114. DrawText(hdc, "Seeding the PRNG. Please move the mouse!", -1,
  115. &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
  116. EndPaint(hwnd, &ps);
  117. return 0;
  118. case WM_DESTROY:
  119. PostQuitMessage(0);
  120. return 0;
  121. }
  122. if (RAND_event(iMsg, wParam, lParam) == 1 && seeded == 0)
  123. {
  124. seeded = 1;
  125. if (RAND_write_file(filename) <= 0)
  126. MessageBox(hwnd, "Couldn't write random file!",
  127. "OpenSSL", MB_OK | MB_ICONERROR);
  128. PostQuitMessage(0);
  129. }
  130. return DefWindowProc(hwnd, iMsg, wParam, lParam);
  131. }