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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);