• Stephan Mueller's avatar
    crypto: xts - consolidate sanity check for keys · 28856a9e
    Stephan Mueller authored
    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: default avatarStephan Mueller <smueller@chronox.de>
    Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
    28856a9e
xts.c 8.5 KB