Mercurial > dropbear
view libtommath/bn_mp_to_signed_bin.c @ 687:167fdc091c05
Improve RNG seeding.
Try to read from /dev/urandom multiple times, take input from extra sources,
and use /dev/random when generating private keys
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Fri, 29 Jun 2012 23:19:43 +0800 |
parents | 5ff8218bcee9 |
children | 60fc6476e044 |
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#include <tommath.h> #ifdef BN_MP_TO_SIGNED_BIN_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 */ /* store in signed [big endian] format */ int mp_to_signed_bin (mp_int * a, unsigned char *b) { int res; if ((res = mp_to_unsigned_bin (a, b + 1)) != MP_OKAY) { return res; } b[0] = (unsigned char) ((a->sign == MP_ZPOS) ? 0 : 1); return MP_OKAY; } #endif /* $Source: /cvs/libtom/libtommath/bn_mp_to_signed_bin.c,v $ */ /* $Revision: 1.3 $ */ /* $Date: 2006/03/31 14:18:44 $ */