Finish crypto wrapping. Also provide wrappers for OpenSSL.

[tinc] / src / openssl / crypto.c

diff --git a/src/openssl/crypto.c b/src/openssl/crypto.c
new file mode 100644 (file)
index 0000000..7e6e9f6
--- /dev/null
+++ b/src/openssl/crypto.c
@@ -0,0 +1,45 @@
+/*
+    crypto.c -- Cryptographic miscellaneous functions and initialisation
+    Copyright (C) 2007 Guus Sliepen <guus@tinc-vpn.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id$
+*/
+
+#include "system.h"
+
+#include <openssl/rand.h>
+#include <openssl/evp.h>
+#include <openssl/engine.h>
+
+#include "crypto.h"
+
+void crypto_init() {
+        RAND_load_file("/dev/urandom", 1024);
+
+        ENGINE_load_builtin_engines();
+        ENGINE_register_all_complete();
+
+        OpenSSL_add_all_algorithms();
+}
+
+void crypto_exit() {
+       EVP_cleanup();
+}
+
+void randomize(void *out, size_t outlen) {
+       RAND_pseudo_bytes(out, outlen);
+}