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    • Jussi Kivilinna's avatar
      crypto: camellia - add AES-NI/AVX/x86_64 assembler implementation of camellia cipher · d9b1d2e7
      Jussi Kivilinna authored
      This patch adds AES-NI/AVX/x86_64 assembler implementation of Camellia block
      cipher. Implementation process data in sixteen block chunks, which are
      byte-sliced and AES SubBytes is reused for Camellia s-box with help of pre-
      and post-filtering.
      
      Patch has been tested with tcrypt and automated filesystem tests.
      
      tcrypt test results:
      
      Intel Core i5-2450M:
      
      camellia-aesni-avx vs camellia-asm-x86_64-2way:
      128bit key:                                             (lrw:256bit)    (xts:256bit)
      size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
      16B     0.98x   0.96x   0.99x   0.96x   0.96x   0.95x   0.95x   0.94x   0.97x   0.98x
      64B     0.99x   0.98x   1.00x   0.98x   0.98x   0.99x   0.98x   0.93x   0.99x   0.98x
      256B    2.28x   2.28x   1.01x   2.29x   2.25x   2.24x   1.96x   1.97x   1.91x   1.90x
      1024B   2.57x   2.56x   1.00x   2.57x   2.51x   2.53x   2.19x   2.17x   2.19x   2.22x
      8192B   2.49x   2.49x   1.00x   2.53x   2.48x   2.49x   2.17x   2.17x   2.22x   2.22x
      
      256bit key:                                             (lrw:384bit)    (xts:512bit)
      size    ecb-enc ecb-dec cbc-enc cbc-dec ctr-enc ctr-dec lrw-enc lrw-dec xts-enc xts-dec
      16B     0.97x   0.98x   0.99x   0.97x   0.97x   0.96x   0.97x   0.98x   0.98x   0.99x
      64B     1.00x   1.00x   1.01x   0.99x   0.98x   0.99x   0.99x   0.99x   0.99x   0.99x
      256B    2.37x   2.37x   1.01x   2.39x   2.35x   2.33x   2.10x   2.11x   1.99x   2.02x
      1024B   2.58x   2.60x   1.00x   2.58x   2.56x   2.56x   2.28x   2.29x   2.28x   2.29x
      8192B   2.50x   2.52x   1.00x   2.56x   2.51x   2.51x   2.24x   2.25x   2.26x   2.29x
      Signed-off-by: default avatarJussi Kivilinna <jussi.kivilinna@mbnet.fi>
      Acked-by: default avatarDavid S. Miller <davem@davemloft.net>
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      d9b1d2e7