rc4.c File Reference

#include "includes.h"
#include "common.h"
#include "crypto.h"

Include dependency graph for rc4.c:

Go to the source code of this file.

Defines
#define	S_SWAP(a, b)   do { u8 t = S[a]; S[a] = S[b]; S[b] = t; } while(0)
Functions
int	rc4_skip (const u8 *key, size_t keylen, size_t skip, u8 *data, size_t data_len)

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Define Documentation

#define S_SWAP	(		a,
			b
	)		do { u8 t = S[a]; S[a] = S[b]; S[b] = t; } while(0)

Definition at line 20 of file rc4.c.

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Function Documentation

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

rc4_skip - XOR RC4 stream to given data with skip-stream-start : RC4 key : RC4 key length number of bytes to skip from the beginning of the RC4 stream : data to be XOR'ed with RC4 stream : buf length Returns: 0 on success, -1 on failure

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 22 of file rc4.c.