Mercurial > dropbear
view libtommath/bncore.c @ 320:08b69964e408 agent-client
propagate from branch 'au.asn.ucc.matt.dropbear' (head 138a11bc1e2babcd8b1182e6cb2a85d4e9404b11)
to branch 'au.asn.ucc.matt.dropbear.cli-agent' (head 12b2f59db65e7339d340e95ac67d6d9ddb193c2b)
author | Matt Johnston <matt@ucc.asn.au> |
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date | Tue, 06 Jun 2006 15:40:09 +0000 |
parents | eed26cff980b |
children | 5ff8218bcee9 |
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#include <tommath.h> #ifdef BNCORE_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.org */ /* Known optimal configurations CPU /Compiler /MUL CUTOFF/SQR CUTOFF ------------------------------------------------------------- Intel P4 Northwood /GCC v3.4.1 / 88/ 128/LTM 0.32 ;-) AMD Athlon64 /GCC v3.4.4 / 74/ 124/LTM 0.34 */ int KARATSUBA_MUL_CUTOFF = 74, /* Min. number of digits before Karatsuba multiplication is used. */ KARATSUBA_SQR_CUTOFF = 124, /* Min. number of digits before Karatsuba squaring is used. */ TOOM_MUL_CUTOFF = 350, /* no optimal values of these are known yet so set em high */ TOOM_SQR_CUTOFF = 400; #endif