ecp_internal.h

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/*
 *  Copyright (C) 2016, ARM Limited, All Rights Reserved
 *  SPDX-License-Identifier: Apache-2.0
 *
 *  Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *  This file is part of mbed TLS (https://tls.mbed.org)
 */

/*
 * References:
 *
 * [1] BERNSTEIN, Daniel J. Curve25519: new Diffie-Hellman speed records.
 *     <http://cr.yp.to/ecdh/curve25519-20060209.pdf>
 *
 * [2] CORON, Jean-S'ebastien. Resistance against differential power analysis
 *     for elliptic curve cryptosystems. In : Cryptographic Hardware and
 *     Embedded Systems. Springer Berlin Heidelberg, 1999. p. 292-302.
 *     <http://link.springer.com/chapter/10.1007/3-540-48059-5_25>
 *
 * [3] HEDABOU, Mustapha, PINEL, Pierre, et B'EN'ETEAU, Lucien. A comb method to
 *     render ECC resistant against Side Channel Attacks. IACR Cryptology
 *     ePrint Archive, 2004, vol. 2004, p. 342.
 *     <http://eprint.iacr.org/2004/342.pdf>
 *
 * [4] Certicom Research. SEC 2: Recommended Elliptic Curve Domain Parameters.
 *     <http://www.secg.org/sec2-v2.pdf>
 *
 * [5] HANKERSON, Darrel, MENEZES, Alfred J., VANSTONE, Scott. Guide to Elliptic
 *     Curve Cryptography.
 *
 * [6] Digital Signature Standard (DSS), FIPS 186-4.
 *     <http://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.186-4.pdf>
 *
 * [7] Elliptic Curve Cryptography (ECC) Cipher Suites for Transport Layer
 *     Security (TLS), RFC 4492.
 *     <https://tools.ietf.org/search/rfc4492>
 *
 * [8] <http://www.hyperelliptic.org/EFD/g1p/auto-shortw-jacobian.html>
 *
 * [9] COHEN, Henri. A Course in Computational Algebraic Number Theory.
 *     Springer Science & Business Media, 1 Aug 2000
 */

#ifndef MBEDTLS_ECP_INTERNAL_H
#define MBEDTLS_ECP_INTERNAL_H

#if defined(MBEDTLS_ECP_INTERNAL_ALT)

unsigned char mbedtls_internal_ecp_grp_capable( const mbedtls_ecp_group *grp );

int mbedtls_internal_ecp_init( const mbedtls_ecp_group *grp );

void mbedtls_internal_ecp_free( const mbedtls_ecp_group *grp );

#if defined(ECP_SHORTWEIERSTRASS)

#if defined(MBEDTLS_ECP_RANDOMIZE_JAC_ALT)

int mbedtls_internal_ecp_randomize_jac( const mbedtls_ecp_group *grp,
        mbedtls_ecp_point *pt, int (*f_rng)(void *, unsigned char *, size_t),
        void *p_rng );
#endif

#if defined(MBEDTLS_ECP_ADD_MIXED_ALT)

int mbedtls_internal_ecp_add_mixed( const mbedtls_ecp_group *grp,
        mbedtls_ecp_point *R, const mbedtls_ecp_point *P,
        const mbedtls_ecp_point *Q );
#endif

#if defined(MBEDTLS_ECP_DOUBLE_JAC_ALT)
int mbedtls_internal_ecp_double_jac( const mbedtls_ecp_group *grp,
        mbedtls_ecp_point *R, const mbedtls_ecp_point *P );
#endif

#if defined(MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT)
int mbedtls_internal_ecp_normalize_jac_many( const mbedtls_ecp_group *grp,
        mbedtls_ecp_point *T[], size_t t_len );
#endif

#if defined(MBEDTLS_ECP_NORMALIZE_JAC_ALT)
int mbedtls_internal_ecp_normalize_jac( const mbedtls_ecp_group *grp,
        mbedtls_ecp_point *pt );
#endif

#endif /* ECP_SHORTWEIERSTRASS */

#if defined(ECP_MONTGOMERY)

#if defined(MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT)
int mbedtls_internal_ecp_double_add_mxz( const mbedtls_ecp_group *grp,
        mbedtls_ecp_point *R, mbedtls_ecp_point *S, const mbedtls_ecp_point *P,
        const mbedtls_ecp_point *Q, const mbedtls_mpi *d );
#endif

#if defined(MBEDTLS_ECP_RANDOMIZE_MXZ_ALT)
int mbedtls_internal_ecp_randomize_mxz( const mbedtls_ecp_group *grp,
        mbedtls_ecp_point *P, int (*f_rng)(void *, unsigned char *, size_t),
        void *p_rng );
#endif

#if defined(MBEDTLS_ECP_NORMALIZE_MXZ_ALT)
int mbedtls_internal_ecp_normalize_mxz( const mbedtls_ecp_group *grp,
        mbedtls_ecp_point *P );
#endif

#endif /* ECP_MONTGOMERY */

#endif /* MBEDTLS_ECP_INTERNAL_ALT */

#endif /* ecp_internal.h */