mpi_superclass.h (3003B)
1 /* mpi_superclass.h 2 * 3 * Copyright (C) 2006-2025 wolfSSL Inc. 4 * 5 * This file is part of wolfSSL. 6 * 7 * wolfSSL is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 3 of the License, or 10 * (at your option) any later version. 11 * 12 * wolfSSL is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA 20 */ 21 22 23 24 /* super class file for PK algos */ 25 26 /* default ... include all MPI */ 27 #define LTM_ALL 28 29 /* RSA only (does not support DH/DSA/ECC) */ 30 /* #define SC_RSA_1 */ 31 32 /* For reference.... On an Athlon64 optimizing for speed... 33 34 LTM's mpi.o with all functions [striped] is 142KiB in size. 35 36 */ 37 38 /* Works for RSA only, mpi.o is 68KiB */ 39 #ifdef SC_RSA_1 40 #define BN_MP_SHRINK_C 41 #define BN_MP_LCM_C 42 #define BN_MP_PRIME_RANDOM_EX_C 43 #define BN_MP_INVMOD_C 44 #define BN_MP_GCD_C 45 #define BN_MP_MOD_C 46 #define BN_MP_MULMOD_C 47 #define BN_MP_ADDMOD_C 48 #define BN_MP_EXPTMOD_C 49 #define BN_MP_SET_INT_C 50 #define BN_MP_INIT_MULTI_C 51 #define BN_MP_CLEAR_MULTI_C 52 #define BN_MP_UNSIGNED_BIN_SIZE_C 53 #define BN_MP_TO_UNSIGNED_BIN_C 54 #define BN_MP_MOD_D_C 55 #define BN_MP_PRIME_RABIN_MILLER_TRIALS_C 56 #define BN_REVERSE_C 57 #define BN_PRIME_TAB_C 58 59 /* other modifiers */ 60 #define BN_MP_DIV_SMALL /* Slower division, not critical */ 61 62 /* here we are on the last pass so we turn things off. The functions classes are still there 63 * but we remove them specifically from the build. This also invokes tweaks in functions 64 * like removing support for even moduli, etc... 65 */ 66 #ifdef LTM_LAST 67 #undef BN_MP_TOOM_MUL_C 68 #undef BN_MP_TOOM_SQR_C 69 #undef BN_MP_KARATSUBA_MUL_C 70 #undef BN_MP_KARATSUBA_SQR_C 71 #undef BN_MP_REDUCE_C 72 #undef BN_MP_REDUCE_SETUP_C 73 #undef BN_MP_DR_IS_MODULUS_C 74 #undef BN_MP_DR_SETUP_C 75 #undef BN_MP_DR_REDUCE_C 76 #undef BN_MP_REDUCE_IS_2K_C 77 #undef BN_MP_REDUCE_2K_SETUP_C 78 #undef BN_MP_REDUCE_2K_C 79 #undef BN_S_MP_EXPTMOD_C 80 #undef BN_MP_DIV_3_C 81 #undef BN_S_MP_MUL_HIGH_DIGS_C 82 #undef BN_FAST_S_MP_MUL_HIGH_DIGS_C 83 #undef BN_FAST_MP_INVMOD_C 84 85 /* To safely undefine these you have to make sure your RSA key won't exceed the Comba threshold 86 * which is roughly 255 digits [7140 bits for 32-bit machines, 15300 bits for 64-bit machines] 87 * which means roughly speaking you can handle up to 2536-bit RSA keys with these defined without 88 * trouble. 89 */ 90 #undef BN_S_MP_MUL_DIGS_C 91 #undef BN_S_MP_SQR_C 92 #undef BN_MP_MONTGOMERY_REDUCE_C 93 #endif 94 95 #endif 96