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>
35 lines
1.2 KiB
C
35 lines
1.2 KiB
C
/*
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* Software WEP encryption implementation
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* Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
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* Copyright 2003, 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 WEP_H
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#define WEP_H
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#include <linux/skbuff.h>
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#include <linux/types.h>
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#include "ieee80211_i.h"
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#include "key.h"
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int ieee80211_wep_init(struct ieee80211_local *local);
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void ieee80211_wep_free(struct ieee80211_local *local);
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int ieee80211_wep_encrypt_data(struct crypto_cipher *tfm, u8 *rc4key,
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size_t klen, u8 *data, size_t data_len);
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int ieee80211_wep_encrypt(struct ieee80211_local *local,
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struct sk_buff *skb,
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const u8 *key, int keylen, int keyidx);
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int ieee80211_wep_decrypt_data(struct crypto_cipher *tfm, u8 *rc4key,
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size_t klen, u8 *data, size_t data_len);
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bool ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key);
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ieee80211_rx_result
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ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx);
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ieee80211_tx_result
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ieee80211_crypto_wep_encrypt(struct ieee80211_tx_data *tx);
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#endif /* WEP_H */
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