[phater] 74577: [MSTSC] Fix BSOD when we can't acquire context from CryptoAPI. CORE-13263 #resolve

Author: phater
Date: Thu May 18 08:47:30 2017
New Revision: 74577

URL: http://svn.reactos.org/svn/reactos?rev=74577&view=rev
Log:
[MSTSC] Fix BSOD when we can't acquire context from CryptoAPI. CORE-13263 #resolve

Modified:
    trunk/reactos/base/applications/mstsc/ssl_calls.c

Modified: trunk/reactos/base/applications/mstsc/ssl_calls.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/applications/mstsc/ss…
==============================================================================
--- trunk/reactos/base/applications/mstsc/ssl_calls.c	[iso-8859-1] (original)
+++ trunk/reactos/base/applications/mstsc/ssl_calls.c	[iso-8859-1] Thu May 18 08:47:30
2017
@@ -59,10 +59,22 @@
         return NULL;
     }
     ret = CryptAcquireContext(&info->hCryptProv,
-                              NULL,
+                              L"MSTSC",
                               MS_ENHANCED_PROV,
                               PROV_RSA_FULL,
                               0);
+    if (!ret)
+    {
+        dwErr = GetLastError();
+        if (dwErr == NTE_BAD_KEYSET)
+        {
+            ret = CryptAcquireContext(&info->hCryptProv,
+                                      L"MSTSC",
+                                      MS_ENHANCED_PROV,
+                                      PROV_RSA_FULL,
+                                      CRYPT_NEWKEYSET);
+        }
+    }
     if (!ret)
     {
         dwErr = GetLastError();
@@ -214,10 +226,22 @@
         return NULL;
     }
     ret = CryptAcquireContext(&info->hCryptProv,
-                              NULL,
+                              L"MSTSC",
                               MS_ENHANCED_PROV,
                               PROV_RSA_FULL,
                               0);
+    if (!ret)
+    {
+        dwErr = GetLastError();
+        if (dwErr == NTE_BAD_KEYSET)
+        {
+            ret = CryptAcquireContext(&info->hCryptProv,
+                                      L"MSTSC",
+                                      MS_ENHANCED_PROV,
+                                      PROV_RSA_FULL,
+                                      CRYPT_NEWKEYSET);
+        }
+    }
     if (!ret)
     {
         dwErr = GetLastError();
@@ -451,10 +475,22 @@
         return;
     }
     ret = CryptAcquireContext(&hCryptProv,
-                              NULL,
+                              L"MSTSC",
                               MS_ENHANCED_PROV,
                               PROV_RSA_FULL,
                               0);
+    if (!ret)
+    {
+        dwErr = GetLastError();
+        if (dwErr == NTE_BAD_KEYSET)
+        {
+            ret = CryptAcquireContext(&hCryptProv,
+                                      L"MSTSC",
+                                      MS_ENHANCED_PROV,
+                                      PROV_RSA_FULL,
+                                      CRYPT_NEWKEYSET);
+        }
+    }
     if (!ret)
     {
         dwErr = GetLastError();
@@ -1566,9 +1602,13 @@
     {
         return 1;
     }
+    md5 = rdssl_md5_info_create();
+    if (!md5)
+    {
+        return 1;
+    }
     key = (char*)xmalloc(176);
     md5_final = (char*)xmalloc(64);
-    md5 = rdssl_md5_info_create();
     // copy the test key
     memcpy(key, testkey, 176);
     // replace e and n