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ddf169a98f
Follow the same approach as the arm64 driver for implementing a version of AES-NI in CBC mode that supports ciphertext stealing. This results in a ~2x speed increase for relatively short inputs (less than 256 bytes), which is relevant given that AES-CBC with ciphertext stealing is used for filename encryption in the fscrypt layer. For larger inputs, the speedup is still significant (~25% on decryption, ~6% on encryption) Tested-by: Eric Biggers <ebiggers@google.com> # x86_64 Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
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