Mercurial > dropbear
view libtommath/bn_mp_dr_setup.c @ 452:4cab61369879
Prevent invalid packets being sent during key-exchange, instead queue
them until afterwards. This could sometimes terminate connections
after 8 hours if (for example) a new TCP forwarded connection
was sent at the KEX timeout.
| author | Matt Johnston <matt@ucc.asn.au> |
|---|---|
| date | Fri, 27 Jul 2007 17:13:42 +0000 |
| parents | 5ff8218bcee9 |
| children | 60fc6476e044 |
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#include <tommath.h> #ifdef BN_MP_DR_SETUP_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 */ /* determines the setup value */ void mp_dr_setup(mp_int *a, mp_digit *d) { /* the casts are required if DIGIT_BIT is one less than * the number of bits in a mp_digit [e.g. DIGIT_BIT==31] */ *d = (mp_digit)((((mp_word)1) << ((mp_word)DIGIT_BIT)) - ((mp_word)a->dp[0])); } #endif /* $Source: /cvs/libtom/libtommath/bn_mp_dr_setup.c,v $ */ /* $Revision: 1.3 $ */ /* $Date: 2006/03/31 14:18:44 $ */