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@xxxxxxxxx> --- lib/Kconfig | 7 +++++++ lib/Makefile | 2 ++ lib/mpi/Makefile | 22 ++++++++++++++++++++++ 3 files changed, 31 insertions(+), 0 deletions(-) create mode 100644 lib/mpi/Makefile diff --git a/lib/Kconfig b/lib/Kconfig index 6c695ff..f69ce08 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -279,4 +279,11 @@ config CORDIC config LLIST bool +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 d5d175c..97705ae 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -117,6 +117,8 @@ obj-$(CONFIG_CORDIC) += cordic.o obj-$(CONFIG_LLIST) += llist.o +obj-$(CONFIG_MPILIB) += mpi/ + hostprogs-y := gen_crc32table clean-files := crc32table.h diff --git a/lib/mpi/Makefile b/lib/mpi/Makefile new file mode 100644 index 0000000..0c1c6c3 --- /dev/null +++ b/lib/mpi/Makefile @@ -0,0 +1,22 @@ +# +# MPI multiprecision maths library (from gpg) +# + +obj-$(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 + -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
