Revision 12646,
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checked in by danw, 26 years ago
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This commit was generated by cvs2svn to compensate for changes in r12645,
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1 | /* |
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2 | |
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3 | ARCFOUR cipher (based on a cipher posted on the Usenet in Spring-95). |
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4 | This cipher is widely believed and has been tested to be equivalent |
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5 | with the RC4 cipher from RSA Data Security, Inc. (RC4 is a trademark |
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6 | of RSA Data Security) |
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7 | |
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8 | */ |
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9 | |
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10 | /* |
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11 | * $Id: arcfour.h,v 1.1.1.2 1999-03-08 17:43:34 danw Exp $ |
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12 | * $Log: not supported by cvs2svn $ |
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13 | * Revision 1.1.1.1 1996/02/18 21:38:11 ylo |
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14 | * Imported ssh-1.2.13. |
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15 | * |
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16 | * Revision 1.2 1995/07/13 01:30:25 ylo |
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17 | * Added cvs log. |
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18 | * |
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19 | * $Endlog$ |
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20 | */ |
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21 | |
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22 | #ifndef ARCFOUR_H |
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23 | #define ARCFOUR_H |
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24 | |
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25 | typedef struct |
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26 | { |
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27 | unsigned int x; |
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28 | unsigned int y; |
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29 | unsigned char state[256]; |
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30 | } ArcfourContext; |
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31 | |
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32 | /* Initializes the context and sets the key. */ |
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33 | void arcfour_init(ArcfourContext *ctx, const unsigned char *key, |
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34 | unsigned int keylen); |
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35 | |
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36 | /* Returns the next pseudo-random byte from the arcfour (pseudo-random |
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37 | generator) stream. */ |
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38 | unsigned int arcfour_byte(ArcfourContext *ctx); |
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39 | |
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40 | /* Encrypts data. */ |
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41 | void arcfour_encrypt(ArcfourContext *ctx, unsigned char *dest, |
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42 | const unsigned char *src, unsigned int len); |
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43 | |
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44 | /* Decrypts data. */ |
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45 | void arcfour_decrypt(ArcfourContext *ctx, unsigned char *dest, |
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46 | const unsigned char *src, unsigned int len); |
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47 | |
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48 | #endif /* ARCFOUR_H */ |
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