crypto: s390/xts-aes - invoke fallback for ciphertext stealing

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For correctness and compliance with the XTS-AES specification, we are
adding support for ciphertext stealing to XTS implementations, even
though no use cases are known that will be enabled by this.

Since the s390 implementation already has a fallback skcipher standby
for other purposes, let's use it for this purpose as well. If ciphertext
stealing use cases ever become a bottleneck, we can always revisit this.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Ard Biesheuvel 2019-08-16 15:35:45 +03:00 • committed by Herbert Xu

parent 8ce5fac2dc

commit ce68acbcb6

1 changed files with 4 additions and 4 deletions

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arch/s390/crypto/aes_s390.c

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