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/*
* This file is part of the Nice GLib ICE library.
*
* (C) 2008 Collabora Ltd. All rights reserved.
* Contact: Youness Alaoui
* (C) 2008 Nokia Corporation. All rights reserved.
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Nice GLib ICE library.
*
* The Initial Developers of the Original Code are Collabora Ltd and Nokia
* Corporation. All Rights Reserved.
*
* Alternatively, the contents of this file may be used under the terms of the
* the GNU Lesser General Public License Version 2.1 (the "LGPL"), in which
* case the provisions of LGPL are applicable instead of those above. If you
* wish to allow use of your version of this file only under the terms of the
* LGPL and not to allow others to use your version of this file under the
* MPL, indicate your decision by deleting the provisions above and replace
* them with the notice and other provisions required by the LGPL. If you do
* not delete the provisions above, a recipient may use your version of this
* file under either the MPL or the LGPL.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "rand.h"
#ifdef _WIN32
#include <windows.h>
#include <wincrypt.h>
void nice_RAND_nonce (uint8_t *dst, int len)
{
HCRYPTPROV hCryptProv;
LPCSTR container = "Libnice key container";
if(!CryptAcquireContext(&hCryptProv, container, NULL, PROV_RSA_FULL, 0)) {
/* non existing container. try to create a new one */
// I hope this cast here doesn't cause issues
// gcc was complaining about comparing signed and unsigned values
if (GetLastError() == (DWORD) NTE_BAD_KEYSET) {
if(!CryptAcquireContext(&hCryptProv, container, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET)) {
return;
}
}
return;
}
CryptGenRandom (hCryptProv, len, dst);
CryptReleaseContext(hCryptProv,0);
}
#else
#include <sys/types.h>
#include <gnutls/gnutls.h>
#include <gnutls/crypto.h>
void nice_RAND_nonce (uint8_t *dst, int len)
{
gnutls_rnd (GNUTLS_RND_NONCE, dst, len);
}
#endif /* _WIN32 */
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