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