(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+/*
+ * Copyright (c) 2006 Kungliga Tekniska HAÎåÎÝgskolan
+ * (Royal Institute of Technology, Stockholm, Sweden).
+ * 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. Neither the name of the Institute nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE 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.
+ */
/** \file custom.c
* \brief Functions which should be customized for your local system.
#include <unistd.h>
#include <fcntl.h>
+#ifdef WIN32
+#include <wincrypt.h>
+
+volatile static HCRYPTPROV nr_cryptprovider = 0;
+
+static HCRYPTPROV
+nr_CryptProvider(void)
+{
+ BOOL rv;
+ HCRYPTPROV cryptprovider = 0;
+
+ if (nr_cryptprovider != 0)
+ return nr_cryptprovider;
+
+ rv = CryptAcquireContext(&cryptprovider, NULL,
+ MS_ENHANCED_PROV, PROV_RSA_FULL,
+ 0);
+
+ if (GetLastError() == NTE_BAD_KEYSET) {
+ if(!rv)
+ rv = CryptAcquireContext(&cryptprovider, NULL,
+ MS_ENHANCED_PROV, PROV_RSA_FULL,
+ CRYPT_NEWKEYSET);
+ }
+
+ if (rv &&
+ InterlockedCompareExchangePointer((PVOID *) &nr_cryptprovider,
+ (PVOID) cryptprovider, 0) != 0) {
+
+ CryptReleaseContext(cryptprovider, 0);
+ cryptprovider = nr_cryptprovider;
+ }
+
+ return cryptprovider;
+}
+
+ssize_t nr_rand_bytes(uint8_t *data, size_t data_len)
+{
+ if (CryptGenRandom(nr_CryptProvider(), data_len, data))
+ return 0;
+ return data_len;
+}
+#else
ssize_t nr_rand_bytes(uint8_t *data, size_t data_len)
{
static int fd = -1;
return read(fd, data, data_len);
}
+#endif /* WIN32 */
uint32_t nr_rand(void)
{