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/*
 * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
 * Use is subject to license terms.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/* *********************************************************************
 *
 * 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
 *
 *********************************************************************** */

#ifndef _ECL_EXP_H
#define _ECL_EXP_H

/* Curve field type */
typedef enum {
        ECField_GFp,
        ECField_GF2m
} ECField;

/* Hexadecimal encoding of curve parameters */
struct ECCurveParamsStr {
        char *text;
        ECField field;
        unsigned int size;
        char *irr;
        char *curvea;
        char *curveb;
        char *genx;
        char *geny;
        char *order;
        int cofactor;
};
typedef struct ECCurveParamsStr ECCurveParams;

/* Named curve parameters */
typedef enum {

        ECCurve_noName = 0,

        /* NIST prime curves */
        ECCurve_NIST_P192,
        ECCurve_NIST_P224,
        ECCurve_NIST_P256,
        ECCurve_NIST_P384,
        ECCurve_NIST_P521,

        /* NIST binary curves */
        ECCurve_NIST_K163,
        ECCurve_NIST_B163,
        ECCurve_NIST_K233,
        ECCurve_NIST_B233,
        ECCurve_NIST_K283,
        ECCurve_NIST_B283,
        ECCurve_NIST_K409,
        ECCurve_NIST_B409,
        ECCurve_NIST_K571,
        ECCurve_NIST_B571,

        /* ANSI X9.62 prime curves */
        /* ECCurve_X9_62_PRIME_192V1 == ECCurve_NIST_P192 */
        ECCurve_X9_62_PRIME_192V2,
        ECCurve_X9_62_PRIME_192V3,
        ECCurve_X9_62_PRIME_239V1,
        ECCurve_X9_62_PRIME_239V2,
        ECCurve_X9_62_PRIME_239V3,
        /* ECCurve_X9_62_PRIME_256V1 == ECCurve_NIST_P256 */

        /* ANSI X9.62 binary curves */
        ECCurve_X9_62_CHAR2_PNB163V1,
        ECCurve_X9_62_CHAR2_PNB163V2,
        ECCurve_X9_62_CHAR2_PNB163V3,
        ECCurve_X9_62_CHAR2_PNB176V1,
        ECCurve_X9_62_CHAR2_TNB191V1,
        ECCurve_X9_62_CHAR2_TNB191V2,
        ECCurve_X9_62_CHAR2_TNB191V3,
        ECCurve_X9_62_CHAR2_PNB208W1,
        ECCurve_X9_62_CHAR2_TNB239V1,
        ECCurve_X9_62_CHAR2_TNB239V2,
        ECCurve_X9_62_CHAR2_TNB239V3,
        ECCurve_X9_62_CHAR2_PNB272W1,
        ECCurve_X9_62_CHAR2_PNB304W1,
        ECCurve_X9_62_CHAR2_TNB359V1,
        ECCurve_X9_62_CHAR2_PNB368W1,
        ECCurve_X9_62_CHAR2_TNB431R1,

        /* SEC2 prime curves */
        ECCurve_SECG_PRIME_112R1,
        ECCurve_SECG_PRIME_112R2,
        ECCurve_SECG_PRIME_128R1,
        ECCurve_SECG_PRIME_128R2,
        ECCurve_SECG_PRIME_160K1,
        ECCurve_SECG_PRIME_160R1,
        ECCurve_SECG_PRIME_160R2,
        ECCurve_SECG_PRIME_192K1,
        /* ECCurve_SECG_PRIME_192R1 == ECCurve_NIST_P192 */
        ECCurve_SECG_PRIME_224K1,
        /* ECCurve_SECG_PRIME_224R1 == ECCurve_NIST_P224 */
        ECCurve_SECG_PRIME_256K1,
        /* ECCurve_SECG_PRIME_256R1 == ECCurve_NIST_P256 */
        /* ECCurve_SECG_PRIME_384R1 == ECCurve_NIST_P384 */
        /* ECCurve_SECG_PRIME_521R1 == ECCurve_NIST_P521 */

        /* SEC2 binary curves */
        ECCurve_SECG_CHAR2_113R1,
        ECCurve_SECG_CHAR2_113R2,
        ECCurve_SECG_CHAR2_131R1,
        ECCurve_SECG_CHAR2_131R2,
        /* ECCurve_SECG_CHAR2_163K1 == ECCurve_NIST_K163 */
        ECCurve_SECG_CHAR2_163R1,
        /* ECCurve_SECG_CHAR2_163R2 == ECCurve_NIST_B163 */
        ECCurve_SECG_CHAR2_193R1,
        ECCurve_SECG_CHAR2_193R2,
        /* ECCurve_SECG_CHAR2_233K1 == ECCurve_NIST_K233 */
        /* ECCurve_SECG_CHAR2_233R1 == ECCurve_NIST_B233 */
        ECCurve_SECG_CHAR2_239K1,
        /* ECCurve_SECG_CHAR2_283K1 == ECCurve_NIST_K283 */
        /* ECCurve_SECG_CHAR2_283R1 == ECCurve_NIST_B283 */
        /* ECCurve_SECG_CHAR2_409K1 == ECCurve_NIST_K409 */
        /* ECCurve_SECG_CHAR2_409R1 == ECCurve_NIST_B409 */
        /* ECCurve_SECG_CHAR2_571K1 == ECCurve_NIST_K571 */
        /* ECCurve_SECG_CHAR2_571R1 == ECCurve_NIST_B571 */

        /* WTLS curves */
        ECCurve_WTLS_1,
        /* there is no WTLS 2 curve */
        /* ECCurve_WTLS_3 == ECCurve_NIST_K163 */
        /* ECCurve_WTLS_4 == ECCurve_SECG_CHAR2_113R1 */
        /* ECCurve_WTLS_5 == ECCurve_X9_62_CHAR2_PNB163V1 */
        /* ECCurve_WTLS_6 == ECCurve_SECG_PRIME_112R1 */
        /* ECCurve_WTLS_7 == ECCurve_SECG_PRIME_160R1 */
        ECCurve_WTLS_8,
        ECCurve_WTLS_9,
        /* ECCurve_WTLS_10 == ECCurve_NIST_K233 */
        /* ECCurve_WTLS_11 == ECCurve_NIST_B233 */
        /* ECCurve_WTLS_12 == ECCurve_NIST_P224 */

        /* ECC Brainpool prime curves in RFC 5639*/
        ECCurve_BrainpoolP256r1,
        ECCurve_BrainpoolP320r1,
        ECCurve_BrainpoolP384r1,
        ECCurve_BrainpoolP512r1,

        ECCurve_pastLastCurve
} ECCurveName;

/* Aliased named curves */

#define ECCurve_X9_62_PRIME_192V1 ECCurve_NIST_P192
#define ECCurve_X9_62_PRIME_256V1 ECCurve_NIST_P256
#define ECCurve_SECG_PRIME_192R1 ECCurve_NIST_P192
#define ECCurve_SECG_PRIME_224R1 ECCurve_NIST_P224
#define ECCurve_SECG_PRIME_256R1 ECCurve_NIST_P256
#define ECCurve_SECG_PRIME_384R1 ECCurve_NIST_P384
#define ECCurve_SECG_PRIME_521R1 ECCurve_NIST_P521
#define ECCurve_SECG_CHAR2_163K1 ECCurve_NIST_K163
#define ECCurve_SECG_CHAR2_163R2 ECCurve_NIST_B163
#define ECCurve_SECG_CHAR2_233K1 ECCurve_NIST_K233

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