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authorStephan Mueller <smueller@chronox.de>2016-02-09 15:37:47 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2016-02-17 04:07:51 +0800
commit28856a9e52c7cac712af6c143de04766617535dc (patch)
tree4ee6c79e76f8eadc0148bfeb09fd146c9d53fabf /arch/x86/Makefile.um
parent730d02e27670fa5b6a55778d11023c5897d87d57 (diff)
downloadlinux-28856a9e52c7cac712af6c143de04766617535dc.tar.gz
crypto: xts - consolidate sanity check for keys
The patch centralizes the XTS key check logic into the service function xts_check_key which is invoked from the different XTS implementations. With this, the XTS implementations in ARM, ARM64, PPC and S390 have now a sanity check for the XTS keys similar to the other arches. In addition, this service function received a check to ensure that the key != the tweak key which is mandated by FIPS 140-2 IG A.9. As the check is not present in the standards defining XTS, it is only enforced in FIPS mode of the kernel. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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