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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-02-03 17:49:37 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2017-02-11 12:50:45 +0300
commit4860620da7e5752d916737472c40be573aec1869 (patch)
treea7a31ae6b278e8fc9faef7183686ecad14220b8c /crypto
parentf15f05b0a5de667c821a9727c33bce9d1d9b26dd (diff)
downloadlinux-4860620da7e5752d916737472c40be573aec1869.tar.xz
crypto: arm64/aes - add NEON/Crypto Extensions CBCMAC/CMAC/XCBC driver
On ARMv8 implementations that do not support the Crypto Extensions, such as the Raspberry Pi 3, the CCM driver falls back to the generic table based AES implementation to perform the MAC part of the algorithm, which is slow and not time invariant. So add a CBCMAC implementation to the shared glue code between NEON AES and Crypto Extensions AES, so that it can be used instead now that the CCM driver has been updated to look for CBCMAC implementations other than the one it supplies itself. Also, given how these algorithms mostly only differ in the way the key handling and the final encryption are implemented, expose CMAC and XCBC algorithms as well based on the same core update code. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
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