mac80211: aes-cmac: switch to shash CMAC driver

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Instead of open coding the CMAC algorithm in the mac80211 driver using
byte wide xors and calls into the crypto layer for each block of data,
instantiate a cmac(aes) synchronous hash and pass all the data into it
directly. This does not only simplify the code, it also allows the use
of more efficient and more secure implementations, especially on
platforms where SIMD ciphers have a considerable setup cost.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

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Ard Biesheuvel 2017-02-06 10:49:28 +00:00 • committed by Johannes Berg

parent fe8de3da13

commit 26717828b7

3 changed files with 32 additions and 107 deletions

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126

net/mac80211/aes_cmac.c

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11

net/mac80211/aes_cmac.h

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2

net/mac80211/key.h

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