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| author | Dmitry Kasatkin <dmitry.kasatkin@intel.com> | 2011-08-31 14:05:16 +0300 |
|---|---|---|
| committer | Dmitry Kasatkin <dmitry.kasatkin@intel.com> | 2011-11-09 11:47:25 +0200 |
| commit | d9c46b184fcfd33c85a7dc48a653435a08e21f56 (patch) | |
| tree | 472f003b19daaff085f31931d4a6d5c495a6f716 | |
| parent | 5ce3e312ec5c11abce13215be70700778bf601f0 (diff) | |
| download | lwn-d9c46b184fcfd33c85a7dc48a653435a08e21f56.tar.gz lwn-d9c46b184fcfd33c85a7dc48a653435a08e21f56.zip | |
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 <dmitry.kasatkin@intel.com>
| -rw-r--r-- | lib/Kconfig | 7 | ||||
| -rw-r--r-- | lib/Makefile | 2 | ||||
| -rw-r--r-- | lib/mpi/Makefile | 21 |
3 files changed, 30 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index 32f3e5ae2be5..4af07ec7f2de 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 a4da283f5dc0..6ba8cbf4c72f 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -115,6 +115,8 @@ obj-$(CONFIG_CPU_RMAP) += cpu_rmap.o obj-$(CONFIG_CORDIC) += cordic.o +obj-$(CONFIG_MPILIB) += mpi/ + hostprogs-y := gen_crc32table clean-files := crc32table.h diff --git a/lib/mpi/Makefile b/lib/mpi/Makefile new file mode 100644 index 000000000000..45ca90a8639c --- /dev/null +++ b/lib/mpi/Makefile @@ -0,0 +1,21 @@ +# +# MPI multiprecision maths library (from gpg) +# + +obj-$(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 |