From d9c46b184fcfd33c85a7dc48a653435a08e21f56 Mon Sep 17 00:00:00 2001 From: Dmitry Kasatkin Date: Wed, 31 Aug 2011 14:05:16 +0300 Subject: 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: Dmitry Kasatkin --- lib/Kconfig | 7 +++++++ lib/Makefile | 2 ++ lib/mpi/Makefile | 21 +++++++++++++++++++++ 3 files changed, 30 insertions(+) create mode 100644 lib/mpi/Makefile (limited to 'lib') diff --git a/lib/Kconfig b/lib/Kconfig index 32f3e5ae2be..4af07ec7f2d 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -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 diff --git a/lib/Makefile b/lib/Makefile index a4da283f5dc..6ba8cbf4c72 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -115,6 +115,8 @@ obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o obj-$(CONFIG_CORDIC) += cordic.o +obj-$(CONFIG_MPILIB) += mpi/ + hostprogs-y := gen_crc32table clean-files := crc32table.h diff --git a/lib/mpi/Makefile b/lib/mpi/Makefile new file mode 100644 index 00000000000..45ca90a8639 --- /dev/null +++ b/lib/mpi/Makefile @@ -0,0 +1,21 @@ +# +# MPI multiprecision maths library (from gpg) +# + +obj-$(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 -- cgit v1.2.3