1 files changed, 75 insertions, 0 deletions
diff --git a/contrib/keychain-mcd/crypto_osx.c b/contrib/keychain-mcd/crypto_osx.c
new file mode 100644
index 0000000..87ba09b
--- /dev/null
+++ b/contrib/keychain-mcd/crypto_osx.c
@@ -0,0 +1,75 @@
+/*
+ *  OpenVPN -- An application to securely tunnel IP networks
+ *             over a single UDP port, with support for SSL/TLS-based
+ *             session authentication and key exchange,
+ *             packet encryption, packet authentication, and
+ *             packet compression.
+ *
+ *  Copyright (C) 2010 Brian Raderman <brian@irregularexpression.org>
+ *  Copyright (C) 2013-2015 Vasily Kulikov <segoon@openwall.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
+ *
+ *  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 (see the file COPYING included with this
+ *  distribution); if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#include <CommonCrypto/CommonDigest.h>
+#include <Security/SecKey.h>
+#include <Security/Security.h>
+
+#include "crypto_osx.h"
+#include <err.h>
+
+void printErrorMsg(const char *func, CFErrorRef error)
+{
+  CFStringRef desc = CFErrorCopyDescription(error);
+  warnx("%s failed: %s", func, CFStringGetCStringPtr(desc, kCFStringEncodingUTF8));
+  CFRelease(desc);
+}
+
+void printErrorStatusMsg(const char *func, OSStatus status)
+{
+  CFStringRef error;
+  error = SecCopyErrorMessageString(status, NULL);
+  if (error)
+    {
+      warnx("%s failed: %s", func, CFStringGetCStringPtr(error, kCFStringEncodingUTF8));
+      CFRelease(error);
+    }
+  else
+    warnx("%s failed: %X", func, (int)status);
+}
+
+void signData(SecIdentityRef identity, const uint8_t *from, int flen, uint8_t *to, size_t *tlen)
+{
+  SecKeyRef privateKey = NULL;
+  OSStatus status;
+
+  status = SecIdentityCopyPrivateKey(identity,  &privateKey);
+  if (status != noErr)
+    {
+      printErrorStatusMsg("signData: SecIdentityCopyPrivateKey", status);
+      *tlen = 0;
+      return;
+    }
+
+  status = SecKeyRawSign(privateKey, kSecPaddingPKCS1, from, flen, to, tlen);
+  CFRelease(privateKey);
+  if (status != noErr)
+    {
+      printErrorStatusMsg("signData: SecKeyRawSign", status);
+      *tlen = 0;
+      return;
+    }
+}