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[CRYPTO] lrw: Liskov Rivest Wagner, a tweakable narrow block cipher mode

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Main module, this implements the Liskov Rivest Wagner block cipher mode
in the new blockcipher API. The implementation is based on ecb.c.

The LRW-32-AES specification I used can be found at:
http://grouper.ieee.org/groups/1619/email/pdf00017.pdf

It implements the optimization specified as optional in the
specification, and in addition it uses optimized multiplication
routines from gf128mul.c.

Since gf128mul.[ch] is not tested on bigendian, this cipher mode
may currently fail badly on bigendian machines.

Signed-off-by: Rik Snel <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Rik Snel 2006-11-26 09:43:10 +11:00 • committed by David S. Miller
commit 64470f1b85
3 changed files with 315 additions and 0 deletions
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1
crypto/Makefile
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@ -27,6 +27,7 @@ obj-$(CONFIG_CRYPTO_TGR192) += tgr192.o
obj-$(CONFIG_CRYPTO_GF128MUL) += gf128mul.o
obj-$(CONFIG_CRYPTO_ECB) += ecb.o
obj-$(CONFIG_CRYPTO_CBC) += cbc.o
obj-$(CONFIG_CRYPTO_LRW) += lrw.o
obj-$(CONFIG_CRYPTO_DES) += des.o
obj-$(CONFIG_CRYPTO_BLOWFISH) += blowfish.o
obj-$(CONFIG_CRYPTO_TWOFISH) += twofish.o