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Diffstat (limited to 'net/sched/act_simple.c')

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cmac: switch to shash CMAC driverArd Biesheuvel3-107/+32 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> 2017-02-08mac80211: fils_aead: Use crypto api CMAC shash rather than bare cipherArd Biesheuvel3-45/+34 Switch the FILS AEAD code to use a cmac(aes) shash instantiated by the crypto API rather than reusing the open coded implementation in aes_cmac_vector(). This makes the code more understandable, and allows platforms to implement cmac(aes) in a more secure (*) and efficient way than is typically possible when using the AES cipher directly. So replace the crypto_cipher by a crypto_shash, and update the aes_s2v() routine to call the shash interface directly. * In particular, the generic table based AES implementation is sensitive to known-plaintext timing attacks on the key, to which AES based MAC algorithms are especially vulnerable, given that their plaintext is not usually secret. Time invariant alternatives are available (e.g., based on SIMD algorithms), but may incur a setup cost that is prohibitive when operating on a single block at a time, which is why they don't usually expose the cipher API. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> 2017-02-08cfg80211 debugfs: Cleanup some checkpatch issuesPichugin Dmitry1-5/+5 This fixes the checkpatch.pl warnings: * Macros should not use a trailing semicolon. * Spaces required around that '='. * Symbolic permissions 'S_IRUGO' are not preferred. Signed-off-by: Dmitriy Pichugin <smokeman85@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>


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