| /* ********************************************************************* |
| * |
| * Sun elects to have this file available under and governed by the |
| * Mozilla Public License Version 1.1 ("MPL") (see |
| * http://www.mozilla.org/MPL/ for full license text). For the avoidance |
| * of doubt and subject to the following, Sun also elects to allow |
| * licensees to use this file under the MPL, the GNU General Public |
| * License version 2 only or the Lesser General Public License version |
| * 2.1 only. Any references to the "GNU General Public License version 2 |
| * or later" or "GPL" in the following shall be construed to mean the |
| * GNU General Public License version 2 only. Any references to the "GNU |
| * Lesser General Public License version 2.1 or later" or "LGPL" in the |
| * following shall be construed to mean the GNU Lesser General Public |
| * License version 2.1 only. However, the following notice accompanied |
| * the original version of this file: |
| * |
| * 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. |
| * |
| * 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. |
| * |
| *********************************************************************** */ |
| /* |
| * Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved. |
| * Use is subject to license terms. |
| */ |
| |
| #ifndef _ECL_H |
| #define _ECL_H |
| |
| #pragma ident "%Z%%M% %I% %E% SMI" |
| |
| /* Although this is not an exported header file, code which uses elliptic |
| * curve point operations will need to include it. */ |
| |
| #include "ecl-exp.h" |
| #include "mpi.h" |
| |
| struct ECGroupStr; |
| typedef struct ECGroupStr ECGroup; |
| |
| /* Construct ECGroup from hexadecimal representations of parameters. */ |
| ECGroup *ECGroup_fromHex(const ECCurveParams * params, int kmflag); |
| |
| /* Construct ECGroup from named parameters. */ |
| ECGroup *ECGroup_fromName(const ECCurveName name, int kmflag); |
| |
| /* Free an allocated ECGroup. */ |
| void ECGroup_free(ECGroup *group); |
| |
| /* Construct ECCurveParams from an ECCurveName */ |
| ECCurveParams *EC_GetNamedCurveParams(const ECCurveName name, int kmflag); |
| |
| /* Duplicates an ECCurveParams */ |
| ECCurveParams *ECCurveParams_dup(const ECCurveParams * params, int kmflag); |
| |
| /* Free an allocated ECCurveParams */ |
| void EC_FreeCurveParams(ECCurveParams * params); |
| |
| /* Elliptic curve scalar-point multiplication. Computes Q(x, y) = k * P(x, |
| * y). If x, y = NULL, then P is assumed to be the generator (base point) |
| * of the group of points on the elliptic curve. Input and output values |
| * are assumed to be NOT field-encoded. */ |
| mp_err ECPoint_mul(const ECGroup *group, const mp_int *k, const mp_int *px, |
| const mp_int *py, mp_int *qx, mp_int *qy); |
| |
| /* Elliptic curve scalar-point multiplication. Computes Q(x, y) = k1 * G + |
| * k2 * P(x, y), where G is the generator (base point) of the group of |
| * points on the elliptic curve. Input and output values are assumed to |
| * be NOT field-encoded. */ |
| mp_err ECPoints_mul(const ECGroup *group, const mp_int *k1, |
| const mp_int *k2, const mp_int *px, const mp_int *py, |
| mp_int *qx, mp_int *qy); |
| |
| /* Validates an EC public key as described in Section 5.2.2 of X9.62. |
| * Returns MP_YES if the public key is valid, MP_NO if the public key |
| * is invalid, or an error code if the validation could not be |
| * performed. */ |
| mp_err ECPoint_validate(const ECGroup *group, const mp_int *px, const |
| mp_int *py); |
| |
| #endif /* _ECL_H */ |
