1 /* 2 * Carry-less multiply operations. 3 * SPDX-License-Identifier: GPL-2.0-or-later 4 * 5 * Copyright (C) 2023 Linaro, Ltd. 6 */ 7 8 #ifndef CRYPTO_CLMUL_H 9 #define CRYPTO_CLMUL_H 10 11 /** 12 * clmul_8x8_low: 13 * 14 * Perform eight 8x8->8 carry-less multiplies. 15 */ 16 uint64_t clmul_8x8_low(uint64_t, uint64_t); 17 18 /** 19 * clmul_8x4_even: 20 * 21 * Perform four 8x8->16 carry-less multiplies. 22 * The odd bytes of the inputs are ignored. 23 */ 24 uint64_t clmul_8x4_even(uint64_t, uint64_t); 25 26 /** 27 * clmul_8x4_odd: 28 * 29 * Perform four 8x8->16 carry-less multiplies. 30 * The even bytes of the inputs are ignored. 31 */ 32 uint64_t clmul_8x4_odd(uint64_t, uint64_t); 33 34 /** 35 * clmul_8x4_packed: 36 * 37 * Perform four 8x8->16 carry-less multiplies. 38 */ 39 uint64_t clmul_8x4_packed(uint32_t, uint32_t); 40 41 /** 42 * clmul_16x2_even: 43 * 44 * Perform two 16x16->32 carry-less multiplies. 45 * The odd words of the inputs are ignored. 46 */ 47 uint64_t clmul_16x2_even(uint64_t, uint64_t); 48 49 /** 50 * clmul_16x2_odd: 51 * 52 * Perform two 16x16->32 carry-less multiplies. 53 * The even words of the inputs are ignored. 54 */ 55 uint64_t clmul_16x2_odd(uint64_t, uint64_t); 56 57 /** 58 * clmul_32: 59 * 60 * Perform a 32x32->64 carry-less multiply. 61 */ 62 uint64_t clmul_32(uint32_t, uint32_t); 63 64 #endif /* CRYPTO_CLMUL_H */ 65