Annotation of sys/crypto/arc4.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: arc4.h,v 1.2 2007/07/24 19:35:20 damien Exp $ */
2: /*
3: * Copyright (c) 2003 Markus Friedl <markus@openbsd.org>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17:
18: #define RC4STATE 256
19: #define RC4KEYLEN 16
20:
21: struct rc4_ctx {
22: u_int8_t x, y;
23: u_int8_t state[RC4STATE];
24: };
25:
26: void rc4_keysetup(struct rc4_ctx *, u_char *, u_int32_t);
27: void rc4_crypt(struct rc4_ctx *, u_char *, u_char *, u_int32_t);
28: void rc4_skip(struct rc4_ctx *, u_int32_t);
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