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- /* fe448_448.h
- *
- * Copyright (C) 2006-2022 wolfSSL Inc.
- *
- * This file is part of wolfSSL.
- *
- * wolfSSL is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * wolfSSL 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
- */
- #ifndef WOLF_CRYPT_FE_448_H
- #define WOLF_CRYPT_FE_448_H
- #include <wolfssl/wolfcrypt/settings.h>
- #if defined(HAVE_CURVE448) || defined(HAVE_ED448)
- #include <wolfssl/wolfcrypt/types.h>
- #if defined(HAVE___UINT128_T) && !defined(NO_CURVED448_128BIT)
- #define CURVED448_128BIT
- #endif
- #ifdef __cplusplus
- extern "C" {
- #endif
- /* default to be faster but take more memory */
- #if !defined(CURVE448_SMALL) && !defined(ED448_SMALL)
- #if defined(CURVED448_128BIT)
- typedef sword64 fe448;
- #ifndef WOLFSSL_UINT128_T_DEFINED
- #ifdef __SIZEOF_INT128__
- typedef __uint128_t uint128_t;
- typedef __int128_t int128_t;
- typedef __uint128_t word128;
- typedef __int128_t sword128;
- #else
- typedef unsigned long uint128_t __attribute__ ((mode(TI)));
- typedef long int128_t __attribute__ ((mode(TI)));
- typedef uint128_t word128;
- typedef int128_t sword128;
- #endif
- #define WOLFSSL_UINT128_T_DEFINED
- #endif
- #else
- typedef sword32 fe448;
- #endif
- WOLFSSL_LOCAL void fe448_init(void);
- WOLFSSL_LOCAL int curve448(byte* r, const byte* n, const byte* a);
- #if !defined(CURVED448_128BIT)
- WOLFSSL_LOCAL void fe448_reduce(fe448*);
- #else
- #define fe448_reduce(a)
- #endif
- WOLFSSL_LOCAL void fe448_neg(fe448* r, const fe448* a);
- WOLFSSL_LOCAL void fe448_add(fe448* r, const fe448* a, const fe448* b);
- WOLFSSL_LOCAL void fe448_sub(fe448* r, const fe448* a, const fe448* b);
- WOLFSSL_LOCAL void fe448_mul(fe448* r, const fe448* a, const fe448* b);
- WOLFSSL_LOCAL void fe448_sqr(fe448* r, const fe448* a);
- WOLFSSL_LOCAL void fe448_mul39081(fe448* r, const fe448* a);
- WOLFSSL_LOCAL void fe448_invert(fe448* r, const fe448* a);
- WOLFSSL_LOCAL void fe448_0(fe448* a);
- WOLFSSL_LOCAL void fe448_1(fe448* a);
- WOLFSSL_LOCAL void fe448_copy(fe448* d, const fe448* a);
- WOLFSSL_LOCAL int fe448_isnonzero(const fe448* a);
- WOLFSSL_LOCAL int fe448_isnegative(const fe448* a);
- WOLFSSL_LOCAL void fe448_from_bytes(fe448* r, const unsigned char* b);
- WOLFSSL_LOCAL void fe448_to_bytes(unsigned char* b, const fe448* a);
- WOLFSSL_LOCAL void fe448_cmov(fe448* a, const fe448* b, int c);
- WOLFSSL_LOCAL void fe448_pow_2_446_222_1(fe448* r, const fe448* a);
- #else
- WOLFSSL_LOCAL void fe448_init(void);
- WOLFSSL_LOCAL int curve448(byte* r, const byte* n, const byte* a);
- #define fe448_reduce(a)
- WOLFSSL_LOCAL void fe448_neg(word8* r, const word8* a);
- WOLFSSL_LOCAL void fe448_add(word8* r, const word8* a, const word8* b);
- WOLFSSL_LOCAL void fe448_sub(word8* r, const word8* a, const word8* b);
- WOLFSSL_LOCAL void fe448_mul(word8* r, const word8* a, const word8* b);
- WOLFSSL_LOCAL void fe448_sqr(word8* r, const word8* a);
- WOLFSSL_LOCAL void fe448_mul39081(word8* r, const word8* a);
- WOLFSSL_LOCAL void fe448_invert(word8* r, const word8* a);
- WOLFSSL_LOCAL void fe448_norm(byte *a);
- WOLFSSL_LOCAL void fe448_copy(word8* d, const word8* a);
- WOLFSSL_LOCAL int fe448_isnonzero(const word8* a);
- WOLFSSL_LOCAL void fe448_cmov(word8* a, const word8* b, int c);
- WOLFSSL_LOCAL void fe448_pow_2_446_222_1(word8* r, const word8* a);
- #endif /* !CURVE448_SMALL || !ED448_SMALL */
- #ifdef __cplusplus
- } /* extern "C" */
- #endif
- #endif /* HAVE_CURVE448 || HAVE_ED448 */
- #endif /* WOLF_CRYPT_FE_448_H */
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