From 0bad5c238135e5124881927093e8ee04ceb167f7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Manuel=20P=C3=A9gouri=C3=A9-Gonnard?= <mpg@elzevir.fr>
Date: Sat, 26 Jan 2013 15:30:46 +0100
Subject: [PATCH] Add skeleton ecdh.[ch]

---
 include/polarssl/config.h | 15 +++++++++++-
 include/polarssl/ecdh.h   | 47 ++++++++++++++++++++++++++++++++++++
 include/polarssl/ecp.h    |  2 +-
 library/CMakeLists.txt    |  1 +
 library/ecdh.c            | 51 +++++++++++++++++++++++++++++++++++++++
 5 files changed, 114 insertions(+), 2 deletions(-)
 create mode 100644 include/polarssl/ecdh.h
 create mode 100644 library/ecdh.c

diff --git a/include/polarssl/config.h b/include/polarssl/config.h
index 2493233b9..3b682d362 100644
--- a/include/polarssl/config.h
+++ b/include/polarssl/config.h
@@ -836,11 +836,24 @@
  * Enable the elliptic curve over GF(p) library.
  *
  * Module:  library/ecp.c
- * Caller:
+ * Caller:  library/ecdh.c
  *
  * Requires: POLARSSL_BIGNUM_C
  */
 #define POLARSSL_ECP_C
+
+/**
+ * \def POLARSSL_ECDH_C
+ *
+ * Enable the elliptic curve Diffie-Hellman library
+ *
+ * Module:  library/ecdh.c
+ * Caller:
+ *
+ * Requires: POLARSSL_ECP_C
+ */
+#define POLARSSL_ECDH_C
+
 /* \} name */
 
 #endif /* config.h */
diff --git a/include/polarssl/ecdh.h b/include/polarssl/ecdh.h
new file mode 100644
index 000000000..5c9be4595
--- /dev/null
+++ b/include/polarssl/ecdh.h
@@ -0,0 +1,47 @@
+/**
+ * \file ecdh.h
+ *
+ * \brief Elliptic curve Diffie-Hellman
+ *
+ *  Copyright (C) 2006-2013, Brainspark B.V.
+ *
+ *  This file is part of PolarSSL (http://www.polarssl.org)
+ *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ *  All rights reserved.
+ *
+ *  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.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef POLARSSL_ECDH_H
+#define POLARSSL_ECDH_H
+
+#include "polarssl/ecp.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/**
+ * \brief          Checkup routine
+ *
+ * \return         0 if successful, or 1 if the test failed
+ */
+int ecdh_self_test( int verbose );
+
+#endif
diff --git a/include/polarssl/ecp.h b/include/polarssl/ecp.h
index 6c52f9622..e1b099540 100644
--- a/include/polarssl/ecp.h
+++ b/include/polarssl/ecp.h
@@ -27,7 +27,7 @@
 #ifndef POLARSSL_ECP_H
 #define POLARSSL_ECP_H
 
-#include "bignum.h"
+#include "polarssl/bignum.h"
 
 /*
  * ECP error codes
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 704a4b08f..28bbedc72 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -17,6 +17,7 @@ set(src
      des.c
      dhm.c
      ecp.c
+     ecdh.c
      entropy.c
      entropy_poll.c
      error.c
diff --git a/library/ecdh.c b/library/ecdh.c
new file mode 100644
index 000000000..a706b2e29
--- /dev/null
+++ b/library/ecdh.c
@@ -0,0 +1,51 @@
+/*
+ *  Elliptic curve Diffie-Hellman
+ *
+ *  Copyright (C) 2006-2013, Brainspark B.V.
+ *
+ *  This file is part of PolarSSL (http://www.polarssl.org)
+ *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
+ *
+ *  All rights reserved.
+ *
+ *  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.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * References:
+ *
+ * SEC1 http://www.secg.org/index.php?action=secg,docs_secg
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_ECP_C)
+
+#include "polarssl/ecdh.h"
+
+
+#if defined(POLARSSL_SELF_TEST)
+
+/*
+ * Checkup routine
+ */
+int ecdh_self_test( int verbose )
+{
+    return( verbose++ );
+}
+
+#endif
+
+#endif /* defined(POLARSSL_ECP_C) */