122 lines
4 KiB
C
122 lines
4 KiB
C
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/* fe448_448.h
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*
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* Copyright (C) 2006-2023 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifndef WOLF_CRYPT_FE_448_H
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#define WOLF_CRYPT_FE_448_H
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#include <wolfssl/wolfcrypt/settings.h>
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#if defined(HAVE_CURVE448) || defined(HAVE_ED448)
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#include <wolfssl/wolfcrypt/types.h>
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#if defined(HAVE___UINT128_T) && !defined(NO_CURVED448_128BIT)
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#define CURVED448_128BIT
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* default to be faster but take more memory */
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#if !defined(CURVE448_SMALL) && !defined(ED448_SMALL)
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#if defined(CURVED448_128BIT)
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typedef sword64 fe448;
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#ifndef WOLFSSL_UINT128_T_DEFINED
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#ifdef __SIZEOF_INT128__
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typedef __uint128_t uint128_t;
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typedef __int128_t int128_t;
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typedef __uint128_t word128;
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typedef __int128_t sword128;
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#else
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typedef unsigned long uint128_t __attribute__ ((mode(TI)));
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typedef long int128_t __attribute__ ((mode(TI)));
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typedef uint128_t word128;
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typedef int128_t sword128;
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#endif
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#define WOLFSSL_UINT128_T_DEFINED
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#endif
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#else
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typedef sword32 fe448;
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#endif
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WOLFSSL_LOCAL void fe448_init(void);
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WOLFSSL_LOCAL int curve448(byte* r, const byte* n, const byte* a);
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#if !defined(CURVED448_128BIT)
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WOLFSSL_LOCAL void fe448_reduce(fe448*);
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#else
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#define fe448_reduce(a) WC_DO_NOTHING
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#endif
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WOLFSSL_LOCAL void fe448_neg(fe448* r, const fe448* a);
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WOLFSSL_LOCAL void fe448_add(fe448* r, const fe448* a, const fe448* b);
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WOLFSSL_LOCAL void fe448_sub(fe448* r, const fe448* a, const fe448* b);
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WOLFSSL_LOCAL void fe448_mul(fe448* r, const fe448* a, const fe448* b);
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WOLFSSL_LOCAL void fe448_sqr(fe448* r, const fe448* a);
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WOLFSSL_LOCAL void fe448_mul39081(fe448* r, const fe448* a);
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WOLFSSL_LOCAL void fe448_invert(fe448* r, const fe448* a);
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WOLFSSL_LOCAL void fe448_0(fe448* a);
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WOLFSSL_LOCAL void fe448_1(fe448* a);
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WOLFSSL_LOCAL void fe448_copy(fe448* d, const fe448* a);
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WOLFSSL_LOCAL int fe448_isnonzero(const fe448* a);
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WOLFSSL_LOCAL int fe448_isnegative(const fe448* a);
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WOLFSSL_LOCAL void fe448_from_bytes(fe448* r, const unsigned char* b);
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WOLFSSL_LOCAL void fe448_to_bytes(unsigned char* b, const fe448* a);
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WOLFSSL_LOCAL void fe448_cmov(fe448* a, const fe448* b, int c);
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WOLFSSL_LOCAL void fe448_pow_2_446_222_1(fe448* r, const fe448* a);
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#else
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WOLFSSL_LOCAL void fe448_init(void);
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WOLFSSL_LOCAL int curve448(byte* r, const byte* n, const byte* a);
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#define fe448_reduce(a) WC_DO_NOTHING
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WOLFSSL_LOCAL void fe448_neg(word8* r, const word8* a);
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WOLFSSL_LOCAL void fe448_add(word8* r, const word8* a, const word8* b);
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WOLFSSL_LOCAL void fe448_sub(word8* r, const word8* a, const word8* b);
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WOLFSSL_LOCAL void fe448_mul(word8* r, const word8* a, const word8* b);
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WOLFSSL_LOCAL void fe448_sqr(word8* r, const word8* a);
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WOLFSSL_LOCAL void fe448_mul39081(word8* r, const word8* a);
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WOLFSSL_LOCAL void fe448_invert(word8* r, const word8* a);
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WOLFSSL_LOCAL void fe448_norm(byte *a);
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WOLFSSL_LOCAL void fe448_copy(word8* d, const word8* a);
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WOLFSSL_LOCAL int fe448_isnonzero(const word8* a);
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WOLFSSL_LOCAL void fe448_cmov(word8* a, const word8* b, int c);
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WOLFSSL_LOCAL void fe448_pow_2_446_222_1(word8* r, const word8* a);
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#endif /* !CURVE448_SMALL || !ED448_SMALL */
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* HAVE_CURVE448 || HAVE_ED448 */
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#endif /* WOLF_CRYPT_FE_448_H */
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