26717828b7
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>
24 lines
738 B
C
24 lines
738 B
C
/*
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* Copyright 2008, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef AES_CMAC_H
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#define AES_CMAC_H
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#include <linux/crypto.h>
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#include <crypto/hash.h>
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struct crypto_shash *ieee80211_aes_cmac_key_setup(const u8 key[],
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size_t key_len);
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void ieee80211_aes_cmac(struct crypto_shash *tfm, const u8 *aad,
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const u8 *data, size_t data_len, u8 *mic);
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void ieee80211_aes_cmac_256(struct crypto_shash *tfm, const u8 *aad,
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const u8 *data, size_t data_len, u8 *mic);
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void ieee80211_aes_cmac_key_free(struct crypto_shash *tfm);
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#endif /* AES_CMAC_H */
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