Varun Bahl / CyaSSL-Encryp

cya_u

Fork of CyaSSL-forEncrypt by Mobius IoT

mpi_superclass.h@2:d0516dc143b1, 2017-05-10 (annotated)

Committer:
vbahl2
Date:
Wed May 10 18:20:47 2017 +0000
Revision:
2:d0516dc143b1
Parent:
0:5045d2638c29 
updated

Who changed what in which revision?

UserRevisionLine numberNew contents of line
toddouska 0:5045d2638c29 1 /* super class file for PK algos */
toddouska 0:5045d2638c29 2
toddouska 0:5045d2638c29 3 /* default ... include all MPI */
toddouska 0:5045d2638c29 4 #define LTM_ALL
toddouska 0:5045d2638c29 5
toddouska 0:5045d2638c29 6 /* RSA only (does not support DH/DSA/ECC) */
toddouska 0:5045d2638c29 7 /* #define SC_RSA_1 */
toddouska 0:5045d2638c29 8
toddouska 0:5045d2638c29 9 /* For reference.... On an Athlon64 optimizing for speed...
toddouska 0:5045d2638c29 10
toddouska 0:5045d2638c29 11 LTM's mpi.o with all functions [striped] is 142KiB in size.
toddouska 0:5045d2638c29 12
toddouska 0:5045d2638c29 13 */
toddouska 0:5045d2638c29 14
toddouska 0:5045d2638c29 15 /* Works for RSA only, mpi.o is 68KiB */
toddouska 0:5045d2638c29 16 #ifdef SC_RSA_1
toddouska 0:5045d2638c29 17 #define BN_MP_SHRINK_C
toddouska 0:5045d2638c29 18 #define BN_MP_LCM_C
toddouska 0:5045d2638c29 19 #define BN_MP_PRIME_RANDOM_EX_C
toddouska 0:5045d2638c29 20 #define BN_MP_INVMOD_C
toddouska 0:5045d2638c29 21 #define BN_MP_GCD_C
toddouska 0:5045d2638c29 22 #define BN_MP_MOD_C
toddouska 0:5045d2638c29 23 #define BN_MP_MULMOD_C
toddouska 0:5045d2638c29 24 #define BN_MP_ADDMOD_C
toddouska 0:5045d2638c29 25 #define BN_MP_EXPTMOD_C
toddouska 0:5045d2638c29 26 #define BN_MP_SET_INT_C
toddouska 0:5045d2638c29 27 #define BN_MP_INIT_MULTI_C
toddouska 0:5045d2638c29 28 #define BN_MP_CLEAR_MULTI_C
toddouska 0:5045d2638c29 29 #define BN_MP_UNSIGNED_BIN_SIZE_C
toddouska 0:5045d2638c29 30 #define BN_MP_TO_UNSIGNED_BIN_C
toddouska 0:5045d2638c29 31 #define BN_MP_MOD_D_C
toddouska 0:5045d2638c29 32 #define BN_MP_PRIME_RABIN_MILLER_TRIALS_C
toddouska 0:5045d2638c29 33 #define BN_REVERSE_C
toddouska 0:5045d2638c29 34 #define BN_PRIME_TAB_C
toddouska 0:5045d2638c29 35
toddouska 0:5045d2638c29 36 /* other modifiers */
toddouska 0:5045d2638c29 37 #define BN_MP_DIV_SMALL /* Slower division, not critical */
toddouska 0:5045d2638c29 38
toddouska 0:5045d2638c29 39 /* here we are on the last pass so we turn things off. The functions classes are still there
toddouska 0:5045d2638c29 40 * but we remove them specifically from the build. This also invokes tweaks in functions
toddouska 0:5045d2638c29 41 * like removing support for even moduli, etc...
toddouska 0:5045d2638c29 42 */
toddouska 0:5045d2638c29 43 #ifdef LTM_LAST
toddouska 0:5045d2638c29 44 #undef BN_MP_TOOM_MUL_C
toddouska 0:5045d2638c29 45 #undef BN_MP_TOOM_SQR_C
toddouska 0:5045d2638c29 46 #undef BN_MP_KARATSUBA_MUL_C
toddouska 0:5045d2638c29 47 #undef BN_MP_KARATSUBA_SQR_C
toddouska 0:5045d2638c29 48 #undef BN_MP_REDUCE_C
toddouska 0:5045d2638c29 49 #undef BN_MP_REDUCE_SETUP_C
toddouska 0:5045d2638c29 50 #undef BN_MP_DR_IS_MODULUS_C
toddouska 0:5045d2638c29 51 #undef BN_MP_DR_SETUP_C
toddouska 0:5045d2638c29 52 #undef BN_MP_DR_REDUCE_C
toddouska 0:5045d2638c29 53 #undef BN_MP_REDUCE_IS_2K_C
toddouska 0:5045d2638c29 54 #undef BN_MP_REDUCE_2K_SETUP_C
toddouska 0:5045d2638c29 55 #undef BN_MP_REDUCE_2K_C
toddouska 0:5045d2638c29 56 #undef BN_S_MP_EXPTMOD_C
toddouska 0:5045d2638c29 57 #undef BN_MP_DIV_3_C
toddouska 0:5045d2638c29 58 #undef BN_S_MP_MUL_HIGH_DIGS_C
toddouska 0:5045d2638c29 59 #undef BN_FAST_S_MP_MUL_HIGH_DIGS_C
toddouska 0:5045d2638c29 60 #undef BN_FAST_MP_INVMOD_C
toddouska 0:5045d2638c29 61
toddouska 0:5045d2638c29 62 /* To safely undefine these you have to make sure your RSA key won't exceed the Comba threshold
toddouska 0:5045d2638c29 63 * which is roughly 255 digits [7140 bits for 32-bit machines, 15300 bits for 64-bit machines]
toddouska 0:5045d2638c29 64 * which means roughly speaking you can handle upto 2536-bit RSA keys with these defined without
toddouska 0:5045d2638c29 65 * trouble.
toddouska 0:5045d2638c29 66 */
toddouska 0:5045d2638c29 67 #undef BN_S_MP_MUL_DIGS_C
toddouska 0:5045d2638c29 68 #undef BN_S_MP_SQR_C
toddouska 0:5045d2638c29 69 #undef BN_MP_MONTGOMERY_REDUCE_C
toddouska 0:5045d2638c29 70 #endif
toddouska 0:5045d2638c29 71
toddouska 0:5045d2638c29 72 #endif
toddouska 0:5045d2638c29 73