Diff: crypto/ltc/ltc.h

Revision:

4:cbaf466d717d

Parent:

2:527a66d0a1a9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/ltc/ltc.h	Tue Jun 10 14:23:09 2014 +0000
@@ -0,0 +1,94 @@
+/*
+MiniTLS - A super trimmed down TLS/SSL Library for embedded devices
+Author: Donatien Garnier
+Copyright (C) 2013-2014 AppNearMe Ltd
+
+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.
+*//**
+ * \file ltc.h
+ * \copyright Copyright (c) AppNearMe Ltd 2013
+ * \author Donatien Garnier
+ */
+
+#ifndef LTC_H_
+#define LTC_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "core/fwk.h"
+#include "crypto/crypto_ecc.h"
+#include "crypto/crypto_math.h"
+
+
+/*
+ Config
+ * */
+/* ECC */
+#define LTC_MECC
+#define MPI
+
+#define ECC_BUF_SIZE 256 //FIXME should it be *that* big?
+
+/* use Shamir's trick for point mul (speeds up signature verification) */
+//#define LTC_ECC_SHAMIR -- nope, consumes too much memory
+
+#define LTC_ECC_TIMING_RESISTANT
+
+#define zeromem(buf,size) memset((buf), 0, (size))
+
+typedef crypto_ecc_point_t ecc_point;
+
+/* low level functions */
+int ltc_init_multi(void *a, ...);
+void ltc_deinit_multi(void *a, ...);
+#if 0
+ecc_point *ltc_ecc_new_point(void);
+void       ltc_ecc_del_point(ecc_point *p);
+#endif
+int        ltc_ecc_is_valid_idx(int n);
+
+/* point ops (mp == montgomery digit) */
+/* R = 2P */
+int ltc_ecc_projective_dbl_point(ecc_point *P, ecc_point *R, void *modulus, void *mp);
+
+/* R = P + Q */
+int ltc_ecc_projective_add_point(ecc_point *P, ecc_point *Q, ecc_point *R, void *modulus, void *mp);
+
+
+/* R = kG */
+int ltc_ecc_mulmod(void *k, ecc_point *G, ecc_point *R, void *modulus, int map);
+
+#ifdef LTC_ECC_SHAMIR
+/* kA*A + kB*B = C */
+int ltc_ecc_mul2add(ecc_point *A, void *kA,
+                    ecc_point *B, void *kB,
+                    ecc_point *C,
+                         void *modulus);
+#endif
+
+
+/* map P to affine from projective */
+int ltc_ecc_map(ecc_point *P, void *modulus, void *mp);
+
+#define LTC_ARGCHK(x)
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LTC_H_ */