Added (skeleton) ecp.[ch]
diff --git a/include/polarssl/config.h b/include/polarssl/config.h
index dac70e7..2493233 100644
--- a/include/polarssl/config.h
+++ b/include/polarssl/config.h
@@ -829,6 +829,18 @@
* Caller:
*/
#define POLARSSL_XTEA_C
+
+/**
+ * \def POLARSSL_ECP_C
+ *
+ * Enable the elliptic curve over GF(p) library.
+ *
+ * Module: library/ecp.c
+ * Caller:
+ *
+ * Requires: POLARSSL_BIGNUM_C
+ */
+#define POLARSSL_ECP_C
/* \} name */
#endif /* config.h */
diff --git a/include/polarssl/ecp.h b/include/polarssl/ecp.h
new file mode 100644
index 0000000..a616e16
--- /dev/null
+++ b/include/polarssl/ecp.h
@@ -0,0 +1,136 @@
+/**
+ * \file ecp.h
+ *
+ * \brief Elliptic curves over GF(p)
+ *
+ * Copyright (C) 2012, 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_ECP_H
+#define POLARSSL_ECP_H
+
+#include "bignum.h"
+
+/*
+ * ECP Error codes
+ */
+
+/**
+ * \brief ECP point structure (affine coordinates)
+ */
+typedef struct
+{
+ mpi X; /*!< the point's X coordinate */
+ mpi Y; /*!< the point's Y coordinate */
+}
+ecp_point;
+
+/**
+ * \brief ECP group structure
+ *
+ * The curves we consider are defined by y^2 = x^3 - 3x + b mod p,
+ * and a generator for a large subgroup is fixed.
+ */
+typedef struct
+{
+ mpi P; /*!< prime modulus of the base field */
+ mpi B; /*!< constant term in the equation */
+ ecp_point G; /*!< generator of the subgroup used */
+ mpi N; /*!< the order of G */
+ unsigned char h; /*!< the cofactor of the subgroup */
+}
+ecp_group;
+
+/**
+ * RFC 5114 defines a number of standardized ECP groups for use with TLS.
+ *
+ * These also are the NIST-recommended ECP groups, are the random ECP groups
+ * recommended by SECG, and include the two groups used by NSA Suite B.
+ *
+ * \warning This library does not support validation of arbitrary domain
+ * parameters. Therefore, only well-known domain parameters from trusted
+ * sources (such as the ones below) should be used.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * \brief Addition: R = P + Q
+ *
+ * \param grp ECP group
+ * \param R Destination point
+ * \param P Left-hand point
+ * \param Q Right-hand point
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_ECP_XXX error code
+ */
+int ecp_add( const ecp_group *grp, ecp_point *R,
+ const ecp_point *P, const ecp_point *Q );
+
+/**
+ * \brief Duplication: R = 2 P
+ *
+ * \param grp ECP group
+ * \param R Destination point
+ * \param P Point to double
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_ECP_XXX error code
+ */
+int ecp_double( const ecp_group *grp, ecp_point *R,
+ const ecp_point *P );
+
+/**
+ * \brief Multiplication by an integer: R = m * P
+ *
+ * \param grp ECP group
+ * \param R Destination point
+ * \param m Integer by which to multiply
+ * \param P Point to multiply
+ *
+ * \return 0 if successful, or an POLARSSL_ERR_ECP_XXX error code
+ */
+int ecp_multiply( const ecp_group *grp, ecp_point *R,
+ const mpi *m, const ecp_point *P );
+
+/**
+ * \brief Free the components of a point
+ */
+void ecp_point_free( ecp_point *pt );
+
+/**
+ * \brief Free the components of an ECP group
+ */
+void ecp_group_free( ecp_group *grp );
+
+/**
+ * \brief Checkup routine
+ *
+ * \return 0 if successful, or 1 if the test failed
+ */
+int ecp_self_test( int verbose );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index aae1f50..704a4b0 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -16,6 +16,7 @@
debug.c
des.c
dhm.c
+ ecp.c
entropy.c
entropy_poll.c
error.c
diff --git a/library/ecp.c b/library/ecp.c
new file mode 100644
index 0000000..1caf0c6
--- /dev/null
+++ b/library/ecp.c
@@ -0,0 +1,52 @@
+/*
+ * Elliptic curves over GF(p)
+ *
+ * Copyright (C) 2012, 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-v2 (XXX: insert url)
+ * Guide to Elliptic Curve Cryptography - Hankerson, Menezes, Vanstone
+ */
+
+#include "polarssl/config.h"
+
+#if defined(POLARSSL_ECP_C)
+
+#include "polarssl/ecp.h"
+
+
+#if defined(POLARSSL_SELF_TEST)
+
+/*
+ * Checkup routine
+ */
+int ecp_self_test( int verbose )
+{
+ return( verbose++ );
+}
+
+#endif
+
+#endif