1 /* 2 * Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved. 3 * Copyright 2016 Cryptography Research, Inc. 4 * 5 * Licensed under the Apache License 2.0 (the "License"). You may not use 6 * this file except in compliance with the License. You can obtain a copy 7 * in the file LICENSE in the source distribution or at 8 * https://www.openssl.org/source/license.html 9 * 10 * Originally written by Mike Hamburg 11 */ 12 13 #ifndef OSSL_CRYPTO_EC_CURVE448_ARCH_32_INTRINSICS_H 14 # define OSSL_CRYPTO_EC_CURVE448_ARCH_32_INTRINSICS_H 15 16 #include "internal/constant_time.h" 17 18 # define ARCH_WORD_BITS 32 19 20 #define word_is_zero(a) constant_time_is_zero_32(a) 21 22 static ossl_inline uint64_t widemul(uint32_t a, uint32_t b) 23 { 24 return ((uint64_t)a) * b; 25 } 26 27 #endif /* OSSL_CRYPTO_EC_CURVE448_ARCH_32_INTRINSICS_H */ 28