summaryrefslogtreecommitdiff
path: root/Cryptlib/OpenSSL/crypto/rand/rand_win.c
diff options
context:
space:
mode:
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/rand/rand_win.c')
-rw-r--r--Cryptlib/OpenSSL/crypto/rand/rand_win.c135
1 files changed, 0 insertions, 135 deletions
diff --git a/Cryptlib/OpenSSL/crypto/rand/rand_win.c b/Cryptlib/OpenSSL/crypto/rand/rand_win.c
deleted file mode 100644
index 1be0ed3c..00000000
--- a/Cryptlib/OpenSSL/crypto/rand/rand_win.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
-
-#include "internal/cryptlib.h"
-#include <openssl/rand.h>
-#include "rand_lcl.h"
-
-#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_WIN32)
-# include <windows.h>
-/* On Windows 7 or higher use BCrypt instead of the legacy CryptoAPI */
-# if defined(_MSC_VER) && defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0601
-# define RAND_WINDOWS_USE_BCRYPT
-# endif
-
-# ifdef RAND_WINDOWS_USE_BCRYPT
-# include <bcrypt.h>
-# pragma comment(lib, "bcrypt.lib")
-# ifndef STATUS_SUCCESS
-# define STATUS_SUCCESS ((NTSTATUS)0x00000000L)
-# endif
-# else
-# include <wincrypt.h>
-/*
- * Intel hardware RNG CSP -- available from
- * http://developer.intel.com/design/security/rng/redist_license.htm
- */
-# define PROV_INTEL_SEC 22
-# define INTEL_DEF_PROV L"Intel Hardware Cryptographic Service Provider"
-# endif
-
-static void readtimer(void);
-
-int RAND_poll(void)
-{
- MEMORYSTATUS mst;
-# ifndef RAND_WINDOWS_USE_BCRYPT
- HCRYPTPROV hProvider;
-# endif
- DWORD w;
- BYTE buf[64];
-
-# ifdef RAND_WINDOWS_USE_BCRYPT
- if (BCryptGenRandom(NULL, buf, (ULONG)sizeof(buf), BCRYPT_USE_SYSTEM_PREFERRED_RNG) == STATUS_SUCCESS) {
- RAND_add(buf, sizeof(buf), sizeof(buf));
- }
-# else
- /* poll the CryptoAPI PRNG */
- /* The CryptoAPI returns sizeof(buf) bytes of randomness */
- if (CryptAcquireContextW(&hProvider, NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
- if (CryptGenRandom(hProvider, (DWORD)sizeof(buf), buf) != 0) {
- RAND_add(buf, sizeof(buf), sizeof(buf));
- }
- CryptReleaseContext(hProvider, 0);
- }
-
- /* poll the Pentium PRG with CryptoAPI */
- if (CryptAcquireContextW(&hProvider, NULL, INTEL_DEF_PROV, PROV_INTEL_SEC, CRYPT_VERIFYCONTEXT | CRYPT_SILENT)) {
- if (CryptGenRandom(hProvider, (DWORD)sizeof(buf), buf) != 0) {
- RAND_add(buf, sizeof(buf), sizeof(buf));
- }
- CryptReleaseContext(hProvider, 0);
- }
-# endif
-
- /* timer data */
- readtimer();
-
- /* memory usage statistics */
- GlobalMemoryStatus(&mst);
- RAND_add(&mst, sizeof(mst), 1);
-
- /* process ID */
- w = GetCurrentProcessId();
- RAND_add(&w, sizeof(w), 1);
-
- return (1);
-}
-
-#if OPENSSL_API_COMPAT < 0x10100000L
-int RAND_event(UINT iMsg, WPARAM wParam, LPARAM lParam)
-{
- RAND_poll();
- return RAND_status();
-}
-
-void RAND_screen(void)
-{
- RAND_poll();
-}
-#endif
-
-/* feed timing information to the PRNG */
-static void readtimer(void)
-{
- DWORD w;
- LARGE_INTEGER l;
- static int have_perfc = 1;
-# if defined(_MSC_VER) && defined(_M_X86)
- static int have_tsc = 1;
- DWORD cyclecount;
-
- if (have_tsc) {
- __try {
- __asm {
- _emit 0x0f _emit 0x31 mov cyclecount, eax}
- RAND_add(&cyclecount, sizeof(cyclecount), 1);
- }
- __except(EXCEPTION_EXECUTE_HANDLER) {
- have_tsc = 0;
- }
- }
-# else
-# define have_tsc 0
-# endif
-
- if (have_perfc) {
- if (QueryPerformanceCounter(&l) == 0)
- have_perfc = 0;
- else
- RAND_add(&l, sizeof(l), 0);
- }
-
- if (!have_tsc && !have_perfc) {
- w = GetTickCount();
- RAND_add(&w, sizeof(w), 0);
- }
-}
-
-#endif