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-/*
- * ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is the elliptic curve math library for prime field curves.
- *
- * The Initial Developer of the Original Code is
- * Sun Microsystems, Inc.
- * Portions created by the Initial Developer are Copyright (C) 2003
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Douglas Stebila <douglas@stebila.ca>, Sun Microsystems Laboratories
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-#ifndef __ecp_h_
-#define __ecp_h_
-
-#include "ecl-priv.h"
-
-/* Checks if point P(px, py) is at infinity. Uses affine coordinates. */
-mp_err ec_GFp_pt_is_inf_aff(const mp_int *px, const mp_int *py);
-
-/* Sets P(px, py) to be the point at infinity. Uses affine coordinates. */
-mp_err ec_GFp_pt_set_inf_aff(mp_int *px, mp_int *py);
-
-/* Computes R = P + Q where R is (rx, ry), P is (px, py) and Q is (qx,
- * qy). Uses affine coordinates. */
-mp_err ec_GFp_pt_add_aff(const mp_int *px, const mp_int *py,
- const mp_int *qx, const mp_int *qy, mp_int *rx,
- mp_int *ry, const ECGroup *group);
-
-/* Computes R = P - Q. Uses affine coordinates. */
-mp_err ec_GFp_pt_sub_aff(const mp_int *px, const mp_int *py,
- const mp_int *qx, const mp_int *qy, mp_int *rx,
- mp_int *ry, const ECGroup *group);
-
-/* Computes R = 2P. Uses affine coordinates. */
-mp_err ec_GFp_pt_dbl_aff(const mp_int *px, const mp_int *py, mp_int *rx,
- mp_int *ry, const ECGroup *group);
-
-/* Validates a point on a GFp curve. */
-mp_err ec_GFp_validate_point(const mp_int *px, const mp_int *py, const ECGroup *group);
-
-#ifdef ECL_ENABLE_GFP_PT_MUL_AFF
-/* Computes R = nP where R is (rx, ry) and P is (px, py). The parameters
- * a, b and p are the elliptic curve coefficients and the prime that
- * determines the field GFp. Uses affine coordinates. */
-mp_err ec_GFp_pt_mul_aff(const mp_int *n, const mp_int *px,
- const mp_int *py, mp_int *rx, mp_int *ry,
- const ECGroup *group);
-#endif
-
-/* Converts a point P(px, py) from affine coordinates to Jacobian
- * projective coordinates R(rx, ry, rz). */
-mp_err ec_GFp_pt_aff2jac(const mp_int *px, const mp_int *py, mp_int *rx,
- mp_int *ry, mp_int *rz, const ECGroup *group);
-
-/* Converts a point P(px, py, pz) from Jacobian projective coordinates to
- * affine coordinates R(rx, ry). */
-mp_err ec_GFp_pt_jac2aff(const mp_int *px, const mp_int *py,
- const mp_int *pz, mp_int *rx, mp_int *ry,
- const ECGroup *group);
-
-/* Checks if point P(px, py, pz) is at infinity. Uses Jacobian
- * coordinates. */
-mp_err ec_GFp_pt_is_inf_jac(const mp_int *px, const mp_int *py,
- const mp_int *pz);
-
-/* Sets P(px, py, pz) to be the point at infinity. Uses Jacobian
- * coordinates. */
-mp_err ec_GFp_pt_set_inf_jac(mp_int *px, mp_int *py, mp_int *pz);
-
-/* Computes R = P + Q where R is (rx, ry, rz), P is (px, py, pz) and Q is
- * (qx, qy, qz). Uses Jacobian coordinates. */
-mp_err ec_GFp_pt_add_jac_aff(const mp_int *px, const mp_int *py,
- const mp_int *pz, const mp_int *qx,
- const mp_int *qy, mp_int *rx, mp_int *ry,
- mp_int *rz, const ECGroup *group);
-
-/* Computes R = 2P. Uses Jacobian coordinates. */
-mp_err ec_GFp_pt_dbl_jac(const mp_int *px, const mp_int *py,
- const mp_int *pz, mp_int *rx, mp_int *ry,
- mp_int *rz, const ECGroup *group);
-
-#ifdef ECL_ENABLE_GFP_PT_MUL_JAC
-/* Computes R = nP where R is (rx, ry) and P is (px, py). The parameters
- * a, b and p are the elliptic curve coefficients and the prime that
- * determines the field GFp. Uses Jacobian coordinates. */
-mp_err ec_GFp_pt_mul_jac(const mp_int *n, const mp_int *px,
- const mp_int *py, mp_int *rx, mp_int *ry,
- const ECGroup *group);
-#endif
-
-/* Computes R(x, y) = k1 * G + k2 * P(x, y), where G is the generator
- * (base point) of the group of points on the elliptic curve. Allows k1 =
- * NULL or { k2, P } = NULL. Implemented using mixed Jacobian-affine
- * coordinates. Input and output values are assumed to be NOT
- * field-encoded and are in affine form. */
-mp_err
- ec_GFp_pts_mul_jac(const mp_int *k1, const mp_int *k2, const mp_int *px,
- const mp_int *py, mp_int *rx, mp_int *ry,
- const ECGroup *group);
-
-/* Computes R = nP where R is (rx, ry) and P is the base point. Elliptic
- * curve points P and R can be identical. Uses mixed Modified-Jacobian
- * co-ordinates for doubling and Chudnovsky Jacobian coordinates for
- * additions. Assumes input is already field-encoded using field_enc, and
- * returns output that is still field-encoded. Uses 5-bit window NAF
- * method (algorithm 11) for scalar-point multiplication from Brown,
- * Hankerson, Lopez, Menezes. Software Implementation of the NIST Elliptic
- * Curves Over Prime Fields. */
-mp_err
- ec_GFp_pt_mul_jm_wNAF(const mp_int *n, const mp_int *px, const mp_int *py,
- mp_int *rx, mp_int *ry, const ECGroup *group);
-
-#endif /* __ecp_h_ */