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Commit d9c46b18 authored by Dmitry Kasatkin's avatar Dmitry Kasatkin
Browse files

crypto: GnuPG based MPI lib - make files (part 3) 



Adds the multi-precision-integer maths library which was originally taken
from GnuPG and ported to the kernel by (among others) David Howells.
This version is taken from Fedora kernel 2.6.32-71.14.1.el6.
The difference is that checkpatch reported errors and warnings have been fixed.

This library is used to implemenet RSA digital signature verification
used in IMA/EVM integrity protection subsystem.

Due to patch size limitation, the patch is divided into 4 parts.

Signed-off-by: default avatarDmitry Kasatkin <dmitry.kasatkin@intel.com>
parent 5ce3e312

lib/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -276,4 +276,11 @@ config CORDIC 
	  so its calculations are in fixed point. Modules can select this

	  when they require this function. Module will be called cordic.



config MPILIB

	tristate "Multiprecision maths library"

	help

	  Multiprecision maths library from GnuPG.

	  It is used to implement RSA digital signature verification,

	  which is used by IMA/EVM digital signature extension.



endmenu

lib/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -115,6 +115,8 @@ obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o 


obj-$(CONFIG_CORDIC) += cordic.o



obj-$(CONFIG_MPILIB) += mpi/



hostprogs-y	:= gen_crc32table

clean-files	:= crc32table.h

lib/mpi/Makefile

0 → 100644
+21 −0
Original line number Diff line number Diff line 
#

# MPI multiprecision maths library (from gpg)

#



obj-$(CONFIG_MPILIB) = mpi.o



mpi-y = \

	generic_mpih-lshift.o		\

	generic_mpih-mul1.o		\

	generic_mpih-mul2.o		\

	generic_mpih-mul3.o		\

	generic_mpih-rshift.o		\

	generic_mpih-sub1.o		\

	generic_mpih-add1.o		\

	mpicoder.o			\

	mpi-bit.o			\

	mpih-cmp.o			\

	mpih-div.o			\

	mpih-mul.o			\

	mpi-pow.o			\

	mpiutil.o