Mercurial > dropbear
view libtommath/bn_mp_clear.c @ 1089:d144a6bece53
Uses k_size as an signed integer
buf_incrwritepos() and mp_to_unsigned_bin() functions use k_size as signed
integer argument.
k_size is also used in an assertion that compared it to curve_size which is
a signed long.
Only buf_getwriteptr() is using k_size as unsigned.
So it safe to use it as signed.
| author | Gaël PORTAY <gael.portay@gmail.com> |
|---|---|
| date | Sat, 02 May 2015 11:37:37 +0200 |
| parents | 5ff8218bcee9 |
| children | eebff2079bdc |
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#include <tommath.h> #ifdef BN_MP_CLEAR_C /* LibTomMath, multiple-precision integer library -- Tom St Denis * * LibTomMath is a library that provides multiple-precision * integer arithmetic as well as number theoretic functionality. * * The library was designed directly after the MPI library by * Michael Fromberger but has been written from scratch with * additional optimizations in place. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, [email protected], http://math.libtomcrypt.com */ /* clear one (frees) */ void mp_clear (mp_int * a) { volatile mp_digit *p; int len; /* only do anything if a hasn't been freed previously */ if (a->dp != NULL) { /* first zero the digits */ len = a->alloc; p = a->dp; while (len--) { *p++ = 0; } /* free ram */ XFREE(a->dp); /* reset members to make debugging easier */ a->dp = NULL; a->alloc = a->used = 0; a->sign = MP_ZPOS; } } #endif /* $Source: /cvs/libtom/libtommath/bn_mp_clear.c,v $ */ /* $Revision: 1.3 $ */ /* $Date: 2006/03/31 14:18:44 $ */