libtommath/changes.txt

Mar 22nd, 2003
v0.15  -- Added series of prime testing routines to lib
       -- Fixed up etc/tune.c
       -- Added DR reduction algorithm
       -- Beefed up the manual more.
       -- Fixed up demo/demo.c so it doesn't have so many warnings and it does the full series of
          tests
       -- Added "pre-gen" directory which will hold a "gen.pl"'ed copy of the entire lib [done at
          zipup time so its always the latest]
       -- Added conditional casts for C++ users [boo!]

Mar 15th, 2003
v0.14  -- Tons of manual updates
       -- cleaned up the directory
       -- added MSVC makefiles
       -- source changes [that I don't recall]
       -- Fixed up the lshd/rshd code to use pointer aliasing
       -- Fixed up the mul_2d and div_2d to not call rshd/lshd unless needed
       -- Fixed up etc/tune.c a tad
       -- fixed up demo/demo.c to output comma-delimited results of timing
          also fixed up timing demo to use a finer granularity for various functions
       -- fixed up demo/demo.c testing to pause during testing so my Duron won't catch on fire
          [stays around 31-35C during testing :-)]
       
Feb 13th, 2003
v0.13  -- tons of minor speed-ups in low level add, sub, mul_2 and div_2 which propagate 
          to other functions like mp_invmod, mp_div, etc...
       -- Sped up mp_exptmod_fast by using new code to find R mod m [e.g. B^n mod m]
       -- minor fixes

Jan 17th, 2003
v0.12  -- re-wrote the majority of the makefile so its more portable and will
          install via "make install" on most *nix platforms
       -- Re-packaged all the source as seperate files.  Means the library a single
          file packagage any more.  Instead of just adding "bn.c" you have to add
          libtommath.a
       -- Renamed "bn.h" to "tommath.h"
       -- Changes to the manual to reflect all of this
       -- Used GNU Indent to clean up the source

Jan 15th, 2003
v0.11  -- More subtle fixes
       -- Moved to gentoo linux [hurrah!] so made *nix specific fixes to the make process
       -- Sped up the montgomery reduction code quite a bit
       -- fixed up demo so when building timing for the x86 it assumes ELF format now
       
Jan 9th, 2003
v0.10  -- Pekka Riikonen suggested fixes to the radix conversion code.  
       -- Added baseline montgomery and comba montgomery reductions, sped up exptmods
          [to a point, see bn.h for MONTGOMERY_EXPT_CUTOFF]
       
Jan 6th, 2003
v0.09  -- Updated the manual to reflect recent changes.  :-)
       -- Added Jacobi function (mp_jacobi) to supplement the number theory side of the lib
       -- Added a Mersenne prime finder demo in ./etc/mersenne.c

Jan 2nd, 2003
v0.08  -- Sped up the multipliers by moving the inner loop variables into a smaller scope
       -- Corrected a bunch of small "warnings"
       -- Added more comments
       -- Made "mtest" be able to use /dev/random, /dev/urandom or stdin for RNG data
       -- Corrected some bugs where error messages were potentially ignored
       -- add etc/pprime.c program which makes numbers which are provably prime.
       
Jan 1st, 2003
v0.07  -- Removed alot of heap operations from core functions to speed them up
       -- Added a root finding function [and mp_sqrt macro like from MPI]
       -- Added more to manual 

Dec 31st, 2002
v0.06  -- Sped up the s_mp_add, s_mp_sub which inturn sped up mp_invmod, mp_exptmod, etc...
       -- Cleaned up the header a bit more
       
Dec 30th, 2002
v0.05  -- Builds with MSVC out of the box
       -- Fixed a bug in mp_invmod w.r.t. even moduli
       -- Made mp_toradix and mp_read_radix use char instead of unsigned char arrays
       -- Fixed up exptmod to use fewer multiplications
       -- Fixed up mp_init_size to use only one heap operation
          -- Note there is a slight "off-by-one" bug in the library somewhere
             without the padding (see the source for comment) the library 
             crashes in libtomcrypt.  Anyways a reasonable workaround is to pad the
             numbers which will always correct it since as the numbers grow the padding
             will still be beyond the end of the number
       -- Added more to the manual
       
Dec 29th, 2002
v0.04  -- Fixed a memory leak in mp_to_unsigned_bin
       -- optimized invmod code
       -- Fixed bug in mp_div
       -- use exchange instead of copy for results
       -- added a bit more to the manual
       
Dec 27th, 2002
v0.03  -- Sped up s_mp_mul_high_digs by not computing the carries of the lower digits
       -- Fixed a bug where mp_set_int wouldn't zero the value first and set the used member.
       -- fixed a bug in s_mp_mul_high_digs where the limit placed on the result digits was not calculated properly
       -- fixed bugs in add/sub/mul/sqr_mod functions where if the modulus and dest were the same it wouldn't work
       -- fixed a bug in mp_mod and mp_mod_d concerning negative inputs
       -- mp_mul_d didn't preserve sign
       -- Many many many many fixes
       -- Works in LibTomCrypt now :-)
       -- Added iterations to the timing demos... more accurate.
       -- Tom needs a job.       

Dec 26th, 2002
v0.02  -- Fixed a few "slips" in the manual.  This is "LibTomMath" afterall :-)
       -- Added mp_cmp_mag, mp_neg, mp_abs and mp_radix_size that were missing.
       -- Sped up the fast [comba] multipliers more [yahoo!]

Dec 25th,2002
v0.01  -- Initial release.  Gimme a break.
       -- Todo list, 
           add details to manual [e.g. algorithms]
           more comments in code
           example programs