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/*
ARCFOUR cipher (based on a cipher posted on the Usenet in Spring-95).
This cipher is widely believed and has been tested to be equivalent
with the RC4 cipher from RSA Data Security, Inc. (RC4 is a trademark
of RSA Data Security)
*/
/*
* $Id: arcfour.h,v 1.1.1.1 1996/02/18 21:38:11 ylo Exp $
* $Log: arcfour.h,v $
* Revision 1.1.1.1 1996/02/18 21:38:11 ylo
* Imported ssh-1.2.13.
*
* Revision 1.2 1995/07/13 01:30:25 ylo
* Added cvs log.
*
* $Endlog$
*/
#ifndef ARCFOUR_H
#define ARCFOUR_H
typedef struct
{
unsigned int x;
unsigned int y;
unsigned char state[256];
} ArcfourContext;
/* Initializes the context and sets the key. */
void arcfour_init(ArcfourContext *ctx, const unsigned char *key,
unsigned int keylen);
/* Returns the next pseudo-random byte from the arcfour (pseudo-random
generator) stream. */
unsigned int arcfour_byte(ArcfourContext *ctx);
/* Encrypts data. */
void arcfour_encrypt(ArcfourContext *ctx, unsigned char *dest,
const unsigned char *src, unsigned int len);
/* Decrypts data. */
void arcfour_decrypt(ArcfourContext *ctx, unsigned char *dest,
const unsigned char *src, unsigned int len);
#endif /* ARCFOUR_H */
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.