5f9f1812b6
The only thing that using crypto_blkcipher with ecb does over just using arc4 directly is wrapping the encrypt/decrypt function into a for loop, looping over each individual character. To be able to do this, it pulls in around 40 kb worth of unnecessary kernel modules (at least on a MIPS embedded device). Using arc4 directly not only eliminates those dependencies, it also makes the code smaller. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
33 lines
907 B
C
33 lines
907 B
C
/*
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* Copyright 2002-2004, Instant802 Networks, Inc.
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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 TKIP_H
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#define TKIP_H
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#include <linux/types.h>
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#include <linux/crypto.h>
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#include "key.h"
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u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key, u16 iv16);
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int ieee80211_tkip_encrypt_data(struct crypto_cipher *tfm,
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struct ieee80211_key *key,
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u8 *pos, size_t payload_len, u8 *ta);
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enum {
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TKIP_DECRYPT_OK = 0,
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TKIP_DECRYPT_NO_EXT_IV = -1,
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TKIP_DECRYPT_INVALID_KEYIDX = -2,
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TKIP_DECRYPT_REPLAY = -3,
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};
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int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm,
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struct ieee80211_key *key,
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u8 *payload, size_t payload_len, u8 *ta,
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u8 *ra, int only_iv, int queue,
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u32 *out_iv32, u16 *out_iv16);
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#endif /* TKIP_H */
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