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crypto: GnuPG based MPI lib - additional sources (part 4)

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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.

This code is unnecessary for RSA digital signature verification,
but for completeness it is included here and can be compiled,
if CONFIG_MPILIB_EXTRA is enabled.

Signed-off-by: Dmitry Kasatkin <[email protected]>
This commit is contained in:
Dmitry Kasatkin 2011-11-07 15:16:37 +02:00
commit 7e8dec918e
12 changed files with 1400 additions and 0 deletions
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10
lib/Kconfig
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@ -283,4 +283,14 @@ config MPILIB
It is used to implement RSA digital signature verification,
which is used by IMA/EVM digital signature extension.
config MPILIB_EXTRA
bool "Multiprecision maths library - additional sources"
depends on MPILIB
help
Multiprecision maths library from GnuPG.
It is used to implement RSA digital signature verification,
which is used by IMA/EVM digital signature extension.
This code in unnecessary for RSA digital signature verification,
and can be compiled if needed.
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