Revert "crypt32: Do not create persistent container in CRYPT_CreateKeyProv().".

dlls/crypt32/cert.c

@@ -3682,21 +3682,54 @@ static void CRYPT_MakeCertInfo(PCERT_INFO info, const CRYPT_DATA_BLOB *pSerialNu
     }
 }
  
+typedef RPC_STATUS (RPC_ENTRY *UuidCreateFunc)(UUID *);
+typedef RPC_STATUS (RPC_ENTRY *UuidToStringFunc)(UUID *, unsigned char **);
+typedef RPC_STATUS (RPC_ENTRY *RpcStringFreeFunc)(unsigned char **);
+
 static HCRYPTPROV CRYPT_CreateKeyProv(void)
 {
-    HCRYPTPROV prov;
-    HCRYPTKEY key;
+    HCRYPTPROV hProv = 0;
+    HMODULE rpcrt = LoadLibraryW(L"rpcrt4");
 
-    if (!CryptAcquireContextA(&prov, NULL, MS_DEF_PROV_A, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT | CRYPT_NEWKEYSET))
-        return 0;
-
-    if (!CryptGenKey(prov, AT_SIGNATURE, 0, &key))
+    if (rpcrt)
     {
-        CryptReleaseContext(prov, 0);
-        return 0;
+        UuidCreateFunc uuidCreate = (UuidCreateFunc)GetProcAddress(rpcrt,
+         "UuidCreate");
+        UuidToStringFunc uuidToString = (UuidToStringFunc)GetProcAddress(rpcrt,
+         "UuidToStringA");
+        RpcStringFreeFunc rpcStringFree = (RpcStringFreeFunc)GetProcAddress(
+         rpcrt, "RpcStringFreeA");
+
+        if (uuidCreate && uuidToString && rpcStringFree)
+        {
+            UUID uuid;
+            RPC_STATUS status = uuidCreate(&uuid);
+
+            if (status == RPC_S_OK || status == RPC_S_UUID_LOCAL_ONLY)
+            {
+                unsigned char *uuidStr;
+
+                status = uuidToString(&uuid, &uuidStr);
+                if (status == RPC_S_OK)
+                {
+                    BOOL ret = CryptAcquireContextA(&hProv, (LPCSTR)uuidStr,
+                     MS_DEF_PROV_A, PROV_RSA_FULL, CRYPT_NEWKEYSET);
+
+                    if (ret)
+                    {
+                        HCRYPTKEY key;
+
+                        ret = CryptGenKey(hProv, AT_SIGNATURE, 0, &key);
+                        if (ret)
+                            CryptDestroyKey(key);
+                    }
+                    rpcStringFree(&uuidStr);
+                }
+            }
+        }
+        FreeLibrary(rpcrt);
     }
-    CryptDestroyKey(key);
-    return prov;
+    return hProv;
 }
 
 PCCERT_CONTEXT WINAPI CertCreateSelfSignCertificate(HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hProv,