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[CRYPTO] twofish: Split out common c code

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This patch splits up the twofish crypto routine into a common part ( key
setup  ) which will be uses by all twofish crypto modules ( generic-c , i586
assembler and x86_64 assembler ) and generic-c part. It also creates a new
header file which will be used by all 3 modules.

This eliminates all code duplication.

Correctness was verified with the tcrypt module and automated test scripts.

Signed-off-by: Joachim Fritschi <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Joachim Fritschi 2006-06-20 20:37:23 +10:00 • committed by Herbert Xu
commit 2729bb427f
5 changed files with 777 additions and 697 deletions
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8
crypto/Kconfig
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@ -131,6 +131,7 @@ config CRYPTO_BLOWFISH
config CRYPTO_TWOFISH
tristate "Twofish cipher algorithm"
depends on CRYPTO
select CRYPTO_TWOFISH_COMMON
help
Twofish cipher algorithm.
@ -142,6 +143,13 @@ config CRYPTO_TWOFISH
See also:
<http://www.schneier.com/twofish.html>
config CRYPTO_TWOFISH_COMMON
tristate
depends on CRYPTO
help
Common parts of the Twofish cipher algorithm shared by the
generic c and the assembler implementations.
config CRYPTO_SERPENT
tristate "Serpent cipher algorithm"
depends on CRYPTO