diff options
| author | Matt Johnston <matt@ucc.asn.au> | 2007-01-11 03:14:55 +0000 |
|---|---|---|
| committer | Matt Johnston <matt@ucc.asn.au> | 2007-01-11 03:14:55 +0000 |
| commit | 9d5ed350a749368c84254c11e7616ce3c891193a (patch) | |
| tree | 6dacbff2e9f5c60a1568382db55c72dd6d2ce925 /libtommath/tommath_superclass.h | |
| parent | ca52f070aecf91e75f6ae6c87d4ae1a2189ccb14 (diff) | |
| parent | 5ea605d8de5b4438deb4fa86c5231710dd09f934 (diff) | |
propagate from branch 'au.asn.ucc.matt.ltm.dropbear' (head 2af95f00ebd5bb7a28b3817db1218442c935388e)
to branch 'au.asn.ucc.matt.dropbear' (head ecd779509ef23a8cdf64888904fc9b31d78aa933)
--HG--
extra : convert_revision : d26d5eb2837f46b56a33fb0e7573aa0201abd4d5
Diffstat (limited to 'libtommath/tommath_superclass.h')
| -rw-r--r-- | libtommath/tommath_superclass.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/libtommath/tommath_superclass.h b/libtommath/tommath_superclass.h new file mode 100644 index 0000000..2fdebe6 --- /dev/null +++ b/libtommath/tommath_superclass.h @@ -0,0 +1,76 @@ +/* super class file for PK algos */ + +/* default ... include all MPI */ +#define LTM_ALL + +/* RSA only (does not support DH/DSA/ECC) */ +/* #define SC_RSA_1 */ + +/* For reference.... On an Athlon64 optimizing for speed... + + LTM's mpi.o with all functions [striped] is 142KiB in size. + +*/ + +/* Works for RSA only, mpi.o is 68KiB */ +#ifdef SC_RSA_1 + #define BN_MP_SHRINK_C + #define BN_MP_LCM_C + #define BN_MP_PRIME_RANDOM_EX_C + #define BN_MP_INVMOD_C + #define BN_MP_GCD_C + #define BN_MP_MOD_C + #define BN_MP_MULMOD_C + #define BN_MP_ADDMOD_C + #define BN_MP_EXPTMOD_C + #define BN_MP_SET_INT_C + #define BN_MP_INIT_MULTI_C + #define BN_MP_CLEAR_MULTI_C + #define BN_MP_UNSIGNED_BIN_SIZE_C + #define BN_MP_TO_UNSIGNED_BIN_C + #define BN_MP_MOD_D_C + #define BN_MP_PRIME_RABIN_MILLER_TRIALS_C + #define BN_REVERSE_C + #define BN_PRIME_TAB_C + + /* other modifiers */ + #define BN_MP_DIV_SMALL /* Slower division, not critical */ + + /* here we are on the last pass so we turn things off. The functions classes are still there + * but we remove them specifically from the build. This also invokes tweaks in functions + * like removing support for even moduli, etc... + */ +#ifdef LTM_LAST + #undef BN_MP_TOOM_MUL_C + #undef BN_MP_TOOM_SQR_C + #undef BN_MP_KARATSUBA_MUL_C + #undef BN_MP_KARATSUBA_SQR_C + #undef BN_MP_REDUCE_C + #undef BN_MP_REDUCE_SETUP_C + #undef BN_MP_DR_IS_MODULUS_C + #undef BN_MP_DR_SETUP_C + #undef BN_MP_DR_REDUCE_C + #undef BN_MP_REDUCE_IS_2K_C + #undef BN_MP_REDUCE_2K_SETUP_C + #undef BN_MP_REDUCE_2K_C + #undef BN_S_MP_EXPTMOD_C + #undef BN_MP_DIV_3_C + #undef BN_S_MP_MUL_HIGH_DIGS_C + #undef BN_FAST_S_MP_MUL_HIGH_DIGS_C + #undef BN_FAST_MP_INVMOD_C + + /* To safely undefine these you have to make sure your RSA key won't exceed the Comba threshold + * which is roughly 255 digits [7140 bits for 32-bit machines, 15300 bits for 64-bit machines] + * which means roughly speaking you can handle upto 2536-bit RSA keys with these defined without + * trouble. + */ + #undef BN_S_MP_MUL_DIGS_C + #undef BN_S_MP_SQR_C + #undef BN_MP_MONTGOMERY_REDUCE_C +#endif + +#endif + +/* $Source: /cvs/libtom/libtommath/tommath_superclass.h,v $ */ +/* $Revision: 1.3 $ */ +/* $Date: 2005/05/14 13:29:17 $ */ |