NIIBE Yutaka 6cbc75e712 mpi: Avoid data-dependent timing variations in mpi_powm. ...

* include/mpi.h, mpi/mpiutils.c (mpi_set_cond): New.
* mpi/mpi-pow.c (SIZE_PRECOMP): Rename from SIZE_B_2I3.
(mpi_powm): Access all data in the table and use mpi_set_cond.

--

Access to the precomputed table was indexed by a portion of EXPO,
which could be mounted by a side channel attack.  This change fixes
this particular data-dependent access pattern.

2015-02-26 21:00:05 +09:00

..

alpha

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

generic

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

hppa

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

hppa1.1

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

i386

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

i586

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

m68k

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mips3

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

pa7100

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

power

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

powerpc32

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

powerpc64

Update head to match stable 1.0

2002-06-29 14:15:02 +00:00

sparc32

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

sparc32v8

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

supersparc

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

ChangeLog-2011

Rename all ChangeLog files to ChangeLog-2011.

2011-12-02 19:42:56 +01:00

config.links

Support NetBSD m68K ELF targets

2012-12-13 18:15:38 +01:00

longlong.h

mpi: Fix syntax error for mips64 and gcc < 4.4

2013-10-11 14:11:43 +02:00

Makefile.am

Modernize to automake 1.14.

2015-01-19 18:59:13 +01:00

mpi-add.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpi-bit.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpi-cmp.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpi-div.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpi-gcd.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpi-inline.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpi-inline.h

Fix extern inline use for gcc > 4.3 in c99 mode

2012-11-06 17:14:04 +01:00

mpi-internal.h

mpi: Suppress set-but-unused-variables warnings.

2014-08-20 13:25:17 +02:00

mpi-inv.c

mpi: Fix compiler warning.

2014-10-03 18:28:58 +02:00

mpi-mpow.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpi-mul.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpi-pow.c

mpi: Avoid data-dependent timing variations in mpi_powm.

2015-02-26 21:00:05 +09:00

mpi-scan.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpicoder.c

Removed some set but unused vars.

2011-08-09 10:54:22 +02:00

mpih-cmp.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpih-div.c

mpi: Suppress set-but-unused-variables warnings.

2014-08-20 13:25:17 +02:00

mpih-mul.c

Switched to GPLv3.

2007-10-23 10:48:09 +00:00

mpiutil.c

mpi: Avoid data-dependent timing variations in mpi_powm.

2015-02-26 21:00:05 +09:00