1 /* super class file for PK algos */ 2 3 /* default ... include all MPI */ 4 #define LTM_ALL 5 6 /* RSA only (does not support DH/DSA/ECC) */ 7 /* #define SC_RSA_1 */ 8 9 /* For reference.... On an Athlon64 optimizing for speed... 10 11 LTM's mpi.o with all functions [striped] is 142KiB in size. 12 13 */ 14 15 /* Works for RSA only, mpi.o is 68KiB */ 16 #ifdef SC_RSA_1 17 #define BN_MP_SHRINK_C 18 #define BN_MP_LCM_C 19 #define BN_MP_PRIME_RANDOM_EX_C 20 #define BN_MP_INVMOD_C 21 #define BN_MP_GCD_C 22 #define BN_MP_MOD_C 23 #define BN_MP_MULMOD_C 24 #define BN_MP_ADDMOD_C 25 #define BN_MP_EXPTMOD_C 26 #define BN_MP_SET_INT_C 27 #define BN_MP_INIT_MULTI_C 28 #define BN_MP_CLEAR_MULTI_C 29 #define BN_MP_UNSIGNED_BIN_SIZE_C 30 #define BN_MP_TO_UNSIGNED_BIN_C 31 #define BN_MP_MOD_D_C 32 #define BN_MP_PRIME_RABIN_MILLER_TRIALS_C 33 #define BN_REVERSE_C 34 #define BN_PRIME_TAB_C 35 36 /* other modifiers */ 37 #define BN_MP_DIV_SMALL /* Slower division, not critical */ 38 39 /* here we are on the last pass so we turn things off. The functions classes are still there 40 * but we remove them specifically from the build. This also invokes tweaks in functions 41 * like removing support for even moduli, etc... 42 */ 43 #ifdef LTM_LAST 44 #undef BN_MP_TOOM_MUL_C 45 #undef BN_MP_TOOM_SQR_C 46 #undef BN_MP_KARATSUBA_MUL_C 47 #undef BN_MP_KARATSUBA_SQR_C 48 #undef BN_MP_REDUCE_C 49 #undef BN_MP_REDUCE_SETUP_C 50 #undef BN_MP_DR_IS_MODULUS_C 51 #undef BN_MP_DR_SETUP_C 52 #undef BN_MP_DR_REDUCE_C 53 #undef BN_MP_REDUCE_IS_2K_C 54 #undef BN_MP_REDUCE_2K_SETUP_C 55 #undef BN_MP_REDUCE_2K_C 56 #undef BN_S_MP_EXPTMOD_C 57 #undef BN_MP_DIV_3_C 58 #undef BN_S_MP_MUL_HIGH_DIGS_C 59 #undef BN_FAST_S_MP_MUL_HIGH_DIGS_C 60 #undef BN_FAST_MP_INVMOD_C 61 62 /* To safely undefine these you have to make sure your RSA key won't exceed the Comba threshold 63 * which is roughly 255 digits [7140 bits for 32-bit machines, 15300 bits for 64-bit machines] 64 * which means roughly speaking you can handle upto 2536-bit RSA keys with these defined without 65 * trouble. 66 */ 67 #undef BN_S_MP_MUL_DIGS_C 68 #undef BN_S_MP_SQR_C 69 #undef BN_MP_MONTGOMERY_REDUCE_C 70 #endif 71 72 #endif 73 74 /* $Source: /cvs/libtom/libtommath/tommath_superclass.h,v $ */ 75 /* $Revision: 1.3 $ */ 76 /* $Date: 2005/05/14 13:29:17 $ */ 77
