#define ENTROPY_NEEDED 20 /* require 160 bits = 20 bytes of randomness */
-#ifndef MD_RAND_DEBUG
+#ifdef MD_RAND_DEBUG
# ifndef NDEBUG
# define NDEBUG
# endif
ssleay_rand_add(buf, num, num);
}
-static void ssleay_rand_initialize(void)
+static void ssleay_rand_initialize(void) /* not exported in RAND_METHOD */
{
unsigned long l;
#ifndef GETPID_IS_MEANINGLESS
return ret;
}
-
-#ifdef WINDOWS
-#include <windows.h>
-#include <openssl/rand.h>
-
-int RAND_event(UINT iMsg, WPARAM wParam, LPARAM lParam)
- {
- double add_entropy=0;
- SYSTEMTIME t;
-
- switch (iMsg)
- {
- case WM_KEYDOWN:
- {
- static WPARAM key;
- if (key != wParam)
- add_entropy = 0.05;
- key = wParam;
- }
- break;
- case WM_MOUSEMOVE:
- {
- static int lastx,lasty,lastdx,lastdy;
- int x,y,dx,dy;
-
- x=LOWORD(lParam);
- y=HIWORD(lParam);
- dx=lastx-x;
- dy=lasty-y;
- if (dx != 0 && dy != 0 && dx-lastdx != 0 && dy-lastdy != 0)
- add_entropy=.2;
- lastx=x, lasty=y;
- lastdx=dx, lastdy=dy;
- }
- break;
- }
-
- GetSystemTime(&t);
- RAND_add(&iMsg, sizeof(iMsg), add_entropy);
- RAND_add(&wParam, sizeof(wParam), 0);
- RAND_add(&lParam, sizeof(lParam), 0);
- RAND_add(&t, sizeof(t), 0);
-
- return (RAND_status());
- }
-
-/*****************************************************************************
- * Initialisation function for the SSL random generator. Takes the contents
- * of the screen as random seed.
- *
- * Created 960901 by Gertjan van Oosten, gertjan@West.NL, West Consulting B.V.
- *
- * Code adapted from
- * <URL:http://www.microsoft.com/kb/developr/win_dk/q97193.htm>;
- * the original copyright message is:
- *
- * (C) Copyright Microsoft Corp. 1993. All rights reserved.
- *
- * You have a royalty-free right to use, modify, reproduce and
- * distribute the Sample Files (and/or any modified version) in
- * any way you find useful, provided that you agree that
- * Microsoft has no warranty obligations or liability for any
- * Sample Application Files which are modified.
- */
-/*
- * I have modified the loading of bytes via RAND_seed() mechanism since
- * the original would have been very very CPU intensive since RAND_seed()
- * does an MD5 per 16 bytes of input. The cost to digest 16 bytes is the same
- * as that to digest 56 bytes. So under the old system, a screen of
- * 1024*768*256 would have been CPU cost of approximately 49,000 56 byte MD5
- * digests or digesting 2.7 mbytes. What I have put in place would
- * be 48 16k MD5 digests, or effectively 48*16+48 MD5 bytes or 816 kbytes
- * or about 3.5 times as much.
- * - eric
- */
-void RAND_screen(void)
-{
- HDC hScrDC; /* screen DC */
- HDC hMemDC; /* memory DC */
- HBITMAP hBitmap; /* handle for our bitmap */
- HBITMAP hOldBitmap; /* handle for previous bitmap */
- BITMAP bm; /* bitmap properties */
- unsigned int size; /* size of bitmap */
- char *bmbits; /* contents of bitmap */
- int w; /* screen width */
- int h; /* screen height */
- int y; /* y-coordinate of screen lines to grab */
- int n = 16; /* number of screen lines to grab at a time */
-
- /* Create a screen DC and a memory DC compatible to screen DC */
- hScrDC = CreateDC("DISPLAY", NULL, NULL, NULL);
- hMemDC = CreateCompatibleDC(hScrDC);
-
- /* Get screen resolution */
- w = GetDeviceCaps(hScrDC, HORZRES);
- h = GetDeviceCaps(hScrDC, VERTRES);
-
- /* Create a bitmap compatible with the screen DC */
- hBitmap = CreateCompatibleBitmap(hScrDC, w, n);
-
- /* Select new bitmap into memory DC */
- hOldBitmap = SelectObject(hMemDC, hBitmap);
-
- /* Get bitmap properties */
- GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&bm);
- size = (unsigned int)bm.bmWidthBytes * bm.bmHeight * bm.bmPlanes;
-
- bmbits = Malloc(size);
- if (bmbits) {
- /* Now go through the whole screen, repeatedly grabbing n lines */
- for (y = 0; y < h-n; y += n)
- {
- unsigned char md[MD_DIGEST_LENGTH];
-
- /* Bitblt screen DC to memory DC */
- BitBlt(hMemDC, 0, 0, w, n, hScrDC, 0, y, SRCCOPY);
-
- /* Copy bitmap bits from memory DC to bmbits */
- GetBitmapBits(hBitmap, size, bmbits);
-
- /* Get the MD5 of the bitmap */
- MD(bmbits,size,md);
-
- /* Seed the random generator with the MD5 digest */
- RAND_seed(md, MD_DIGEST_LENGTH);
- }
-
- Free(bmbits);
- }
-
- /* Select old bitmap back into memory DC */
- hBitmap = SelectObject(hMemDC, hOldBitmap);
-
- /* Clean up */
- DeleteObject(hBitmap);
- DeleteDC(hMemDC);
- DeleteDC(hScrDC);
-}
-#endif
--- /dev/null
+/* crypto/rand/rand_win.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+
+#ifdef WINDOWS
+#include <windows.h>
+#include <openssl/rand.h>
+/* XXX There are probably other includes missing here ... */
+
+
+#if !defined(USE_MD5_RAND) && !defined(USE_SHA1_RAND) && !defined(USE_MDC2_RAND) && !defined(USE_MD2_RAND)
+#if !defined(NO_SHA) && !defined(NO_SHA1)
+#define USE_SHA1_RAND
+#elif !defined(NO_MD5)
+#define USE_MD5_RAND
+#elif !defined(NO_MDC2) && !defined(NO_DES)
+#define USE_MDC2_RAND
+#elif !defined(NO_MD2)
+#define USE_MD2_RAND
+#else
+#error No message digest algorithm available
+#endif
+#endif
+
+#if defined(USE_MD5_RAND)
+#include <openssl/md5.h>
+#define MD_DIGEST_LENGTH MD5_DIGEST_LENGTH
+#define MD(a,b,c) MD5(a,b,c)
+#elif defined(USE_SHA1_RAND)
+#include <openssl/sha.h>
+#define MD_DIGEST_LENGTH SHA_DIGEST_LENGTH
+#define MD(a,b,c) SHA1(a,b,c)
+#elif defined(USE_MDC2_RAND)
+#include <openssl/mdc2.h>
+#define MD_DIGEST_LENGTH MDC2_DIGEST_LENGTH
+#define MD(a,b,c) MDC2(a,b,c)
+#elif defined(USE_MD2_RAND)
+#include <openssl/md2.h>
+#define MD_DIGEST_LENGTH MD2_DIGEST_LENGTH
+#define MD(a,b,c) MD2(a,b,c)
+#endif
+
+
+int RAND_event(UINT iMsg, WPARAM wParam, LPARAM lParam)
+ {
+ double add_entropy=0;
+ SYSTEMTIME t;
+
+ switch (iMsg)
+ {
+ case WM_KEYDOWN:
+ {
+ static WPARAM key;
+ if (key != wParam)
+ add_entropy = 0.05;
+ key = wParam;
+ }
+ break;
+ case WM_MOUSEMOVE:
+ {
+ static int lastx,lasty,lastdx,lastdy;
+ int x,y,dx,dy;
+
+ x=LOWORD(lParam);
+ y=HIWORD(lParam);
+ dx=lastx-x;
+ dy=lasty-y;
+ if (dx != 0 && dy != 0 && dx-lastdx != 0 && dy-lastdy != 0)
+ add_entropy=.2;
+ lastx=x, lasty=y;
+ lastdx=dx, lastdy=dy;
+ }
+ break;
+ }
+
+ GetSystemTime(&t);
+ RAND_add(&iMsg, sizeof(iMsg), add_entropy);
+ RAND_add(&wParam, sizeof(wParam), 0);
+ RAND_add(&lParam, sizeof(lParam), 0);
+ RAND_add(&t, sizeof(t), 0);
+
+ return (RAND_status());
+ }
+
+
+/*****************************************************************************
+ * Initialisation function for the SSL random generator. Takes the contents
+ * of the screen as random seed.
+ *
+ * Created 960901 by Gertjan van Oosten, gertjan@West.NL, West Consulting B.V.
+ *
+ * Code adapted from
+ * <URL:http://www.microsoft.com/kb/developr/win_dk/q97193.htm>;
+ * the original copyright message is:
+ *
+ * (C) Copyright Microsoft Corp. 1993. All rights reserved.
+ *
+ * You have a royalty-free right to use, modify, reproduce and
+ * distribute the Sample Files (and/or any modified version) in
+ * any way you find useful, provided that you agree that
+ * Microsoft has no warranty obligations or liability for any
+ * Sample Application Files which are modified.
+ */
+/*
+ * I have modified the loading of bytes via RAND_seed() mechanism since
+ * the original would have been very very CPU intensive since RAND_seed()
+ * does an MD5 per 16 bytes of input. The cost to digest 16 bytes is the same
+ * as that to digest 56 bytes. So under the old system, a screen of
+ * 1024*768*256 would have been CPU cost of approximately 49,000 56 byte MD5
+ * digests or digesting 2.7 mbytes. What I have put in place would
+ * be 48 16k MD5 digests, or effectively 48*16+48 MD5 bytes or 816 kbytes
+ * or about 3.5 times as much.
+ * - eric
+ */
+void RAND_screen(void)
+{
+ HDC hScrDC; /* screen DC */
+ HDC hMemDC; /* memory DC */
+ HBITMAP hBitmap; /* handle for our bitmap */
+ HBITMAP hOldBitmap; /* handle for previous bitmap */
+ BITMAP bm; /* bitmap properties */
+ unsigned int size; /* size of bitmap */
+ char *bmbits; /* contents of bitmap */
+ int w; /* screen width */
+ int h; /* screen height */
+ int y; /* y-coordinate of screen lines to grab */
+ int n = 16; /* number of screen lines to grab at a time */
+
+ /* Create a screen DC and a memory DC compatible to screen DC */
+ hScrDC = CreateDC("DISPLAY", NULL, NULL, NULL);
+ hMemDC = CreateCompatibleDC(hScrDC);
+
+ /* Get screen resolution */
+ w = GetDeviceCaps(hScrDC, HORZRES);
+ h = GetDeviceCaps(hScrDC, VERTRES);
+
+ /* Create a bitmap compatible with the screen DC */
+ hBitmap = CreateCompatibleBitmap(hScrDC, w, n);
+
+ /* Select new bitmap into memory DC */
+ hOldBitmap = SelectObject(hMemDC, hBitmap);
+
+ /* Get bitmap properties */
+ GetObject(hBitmap, sizeof(BITMAP), (LPSTR)&bm);
+ size = (unsigned int)bm.bmWidthBytes * bm.bmHeight * bm.bmPlanes;
+
+ bmbits = Malloc(size);
+ if (bmbits) {
+ /* Now go through the whole screen, repeatedly grabbing n lines */
+ for (y = 0; y < h-n; y += n)
+ {
+ unsigned char md[MD_DIGEST_LENGTH];
+
+ /* Bitblt screen DC to memory DC */
+ BitBlt(hMemDC, 0, 0, w, n, hScrDC, 0, y, SRCCOPY);
+
+ /* Copy bitmap bits from memory DC to bmbits */
+ GetBitmapBits(hBitmap, size, bmbits);
+
+ /* Get the MD5 of the bitmap */
+ MD(bmbits,size,md);
+
+ /* Seed the random generator with the MD5 digest */
+ RAND_seed(md, MD_DIGEST_LENGTH);
+ }
+
+ Free(bmbits);
+ }
+
+ /* Select old bitmap back into memory DC */
+ hBitmap = SelectObject(hMemDC, hOldBitmap);
+
+ /* Clean up */
+ DeleteObject(hBitmap);
+ DeleteDC(hMemDC);
+ DeleteDC(hScrDC);
+}
+
+#else
+
+# if PEDANTIC
+static void *dummy=&dummy;
+# endif
+
+#endif
projects / oweals / openssl.git / commitdiff