rc4.c File Reference

RC4 stream cipher. More...

#include "includes.h"
#include "common.h"
#include "rc4.h"

Include dependency graph for rc4.c:

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Defines
#define	S_SWAP(a, b)   do { u8 t = S[a]; S[a] = S[b]; S[b] = t; } while(0)
Functions
void	rc4_skip (const u8 *key, size_t keylen, size_t skip, u8 *data, size_t data_len)
	XOR RC4 stream to given data with skip-stream-start.
void	rc4 (u8 *buf, size_t len, const u8 *key, size_t key_len)
	XOR RC4 stream to given data.

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Detailed Description

RC4 stream cipher.

Copyright

Copyright (c) 2002-2005, Jouni Malinen <[email protected]>

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation.

Alternatively, this software may be distributed under the terms of BSD license.

See README and COPYING for more details.

Definition in file rc4.c.

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Function Documentation

void rc4 (  u8 *  buf, size_t  len, const u8 *  key, size_t  key_len )

XOR RC4 stream to given data. Parameters: buf  data to be XOR'ed with RC4 stream len  buf length key  RC4 key key_len  RC4 key length Generate RC4 pseudo random stream for the given key and XOR this with the data buffer to perform RC4 encryption/decryption. Definition at line 86 of file rc4.c. Here is the call graph for this function:

void rc4_skip (  const u8 *  key, size_t  keylen, size_t  skip, u8 *  data, size_t  data_len )

XOR RC4 stream to given data with skip-stream-start. Parameters: key  RC4 key keylen  RC4 key length skip  number of bytes to skip from the beginning of the RC4 stream data  data to be XOR'ed with RC4 stream data_len  buf length Generate RC4 pseudo random stream for the given key, skip beginning of the stream, and XOR the end result with the data buffer to perform RC4 encryption/decryption. Definition at line 36 of file rc4.c.

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