Mercurial > dropbear
view libtommath/tommath_superclass.h @ 1499:2d450c1056e3
options: Complete the transition to numeric toggles (`#if')
For the sake of review, this commit alters only the code; the affiliated
comments within the source files also need to be updated, but doing so
now would obscure the operational changes that have been made here.
* All on/off options have been switched to the numeric `#if' variant;
that is the only way to make this `default_options.h.in' thing work
in a reasonable manner.
* There is now some very minor compile-time checking of the user's
choice of options.
* NO_FAST_EXPTMOD doesn't seem to be used, so it has been removed.
* ENABLE_USER_ALGO_LIST was supposed to be renamed DROPBEAR_USER_ALGO_LIST,
and this commit completes that work.
* DROPBEAR_FUZZ seems to be a relatively new, as-yet undocumented option,
which was added by the following commit:
commit 6e0b539e9ca0b5628c6c5a3d118ad6a2e79e8039
Author: Matt Johnston <[email protected]>
Date: Tue May 23 22:29:21 2017 +0800
split out checkpubkey_line() separately
It has now been added to `sysoptions.h' and defined as `0' by default.
* The configuration option `DROPBEAR_PASSWORD_ENV' is no longer listed in
`default_options.h.in'; it is no longer meant to be set by the user, and
is instead left to be defined in `sysoptions.h' (where it was already being
defined) as merely the name of the environment variable in question:
DROPBEAR_PASSWORD
To enable or disable use of that environment variable, the user must now
toggle `DROPBEAR_USE_DROPBEAR_PASSWORD'.
* The sFTP support is now toggled by setting `DROPBEAR_SFTPSERVER', and the
path of the sFTP server program is set independently through the usual
SFTPSERVER_PATH.
| author | Michael Witten <mfwitten@gmail.com> |
|---|---|
| date | Thu, 20 Jul 2017 19:38:26 +0000 |
| parents | 8bba51a55704 |
| children | f52919ffd3b1 |
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/* 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 /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */