1 files changed, 151 insertions, 0 deletions
diff --git a/lib/auth/anon_ecdh.c b/lib/auth/anon_ecdh.c
new file mode 100644
index 0000000000..5e9932faa3
--- /dev/null
+++ b/lib/auth/anon_ecdh.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2009, 2010 Free
+ * Software Foundation, Inc.
+ *
+ * Author: Nikos Mavrogiannopoulos
+ *
+ * This file is part of GnuTLS.
+ *
+ * The GnuTLS is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA
+ *
+ */
+
+/* This file contains the Anonymous Diffie-Hellman key exchange part of
+ * the anonymous authentication. The functions here are used in the
+ * handshake.
+ */
+
+#include <gnutls_int.h>
+
+#ifdef ENABLE_ANON
+
+#include "gnutls_auth.h"
+#include "gnutls_errors.h"
+#include "gnutls_dh.h"
+#include "auth/anon.h"
+#include "gnutls_num.h"
+#include "gnutls_mpi.h"
+#include <gnutls_state.h>
+#include <auth/ecdh_common.h>
+#include <ext/ecc.h>
+
+static int gen_anon_ecdh_server_kx (gnutls_session_t, gnutls_buffer_st*);
+static int proc_anon_ecdh_client_kx (gnutls_session_t, opaque *, size_t);
+static int proc_anon_ecdh_server_kx (gnutls_session_t, opaque *, size_t);
+
+const mod_auth_st anon_ecdh_auth_struct = {
+  "ANON ECDH",
+  NULL,
+  NULL,
+  gen_anon_ecdh_server_kx,
+  _gnutls_gen_ecdh_common_client_kx,      /* this can be shared */
+  NULL,
+  NULL,
+
+  NULL,
+  NULL,                         /* certificate */
+  proc_anon_ecdh_server_kx,
+  proc_anon_ecdh_client_kx,
+  NULL,
+  NULL
+};
+
+static int
+gen_anon_ecdh_server_kx (gnutls_session_t session, gnutls_buffer_st* data)
+{
+  ecc_curve_t curve;
+  int ret;
+  gnutls_anon_server_credentials_t cred;
+
+  cred = (gnutls_anon_server_credentials_t)
+    _gnutls_get_cred (session->key, GNUTLS_CRD_ANON, NULL);
+  if (cred == NULL)
+    {
+      gnutls_assert ();
+      return GNUTLS_E_INSUFFICIENT_CREDENTIALS;
+    }
+
+  curve = _gnutls_session_ecc_curve_get(session);
+  if (curve == GNUTLS_ECC_CURVE_INVALID)
+    return gnutls_assert_val(GNUTLS_E_ECC_NO_SUPPORTED_CURVES);
+  
+  if ((ret =
+       _gnutls_auth_info_set (session, GNUTLS_CRD_ANON,
+                              sizeof (anon_auth_info_st), 1)) < 0)
+    {
+      gnutls_assert ();
+      return ret;
+    }
+
+  ret = _gnutls_ecdh_common_print_server_kx (session, data, curve);
+  if (ret < 0)
+    {
+      gnutls_assert ();
+    }
+
+  return ret;
+}
+
+
+static int
+proc_anon_ecdh_client_kx (gnutls_session_t session, opaque * data,
+                     size_t _data_size)
+{
+  gnutls_anon_server_credentials_t cred;
+  ecc_curve_t curve;
+
+  cred = (gnutls_anon_server_credentials_t)
+    _gnutls_get_cred (session->key, GNUTLS_CRD_ANON, NULL);
+  if (cred == NULL)
+    {
+      gnutls_assert ();
+      return GNUTLS_E_INSUFFICIENT_CREDENTIALS;
+    }
+
+  curve = _gnutls_session_ecc_curve_get(session);
+  if (curve == GNUTLS_ECC_CURVE_INVALID)
+    return gnutls_assert_val(GNUTLS_E_ECC_NO_SUPPORTED_CURVES);
+
+  return _gnutls_proc_ecdh_common_client_kx (session, data, _data_size, curve);
+}
+
+int
+proc_anon_ecdh_server_kx (gnutls_session_t session, opaque * data,
+                     size_t _data_size)
+{
+
+  int ret;
+
+  /* set auth_info */
+  if ((ret =
+       _gnutls_auth_info_set (session, GNUTLS_CRD_ANON,
+                              sizeof (anon_auth_info_st), 1)) < 0)
+    {
+      gnutls_assert ();
+      return ret;
+    }
+
+  ret = _gnutls_proc_ecdh_common_server_kx (session, data, _data_size);
+  if (ret < 0)
+    {
+      gnutls_assert ();
+      return ret;
+    }
+
+  return 0;
+}
+
+#endif /* ENABLE_ANON */