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Annotation of src/usr.bin/telnet/encrypt.h, Revision 1.1

1.1     ! deraadt     1: /*-
        !             2:  * Copyright (c) 1991, 1993
        !             3:  *     The Regents of the University of California.  All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. Neither the name of the University nor the names of its contributors
        !            14:  *    may be used to endorse or promote products derived from this software
        !            15:  *    without specific prior written permission.
        !            16:  *
        !            17:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            27:  * SUCH DAMAGE.
        !            28:  *
        !            29:  *     from: @(#)encrypt.h     8.1 (Berkeley) 6/4/93
        !            30:  *     $OpenBSD: encrypt.h,v 1.2 2003/06/02 19:38:25 millert Exp $
        !            31:  *     $NetBSD: encrypt.h,v 1.4 1996/02/24 01:15:20 jtk Exp $
        !            32:  */
        !            33:
        !            34: /*
        !            35:  * This source code is no longer held under any constraint of USA
        !            36:  * `cryptographic laws' since it was exported legally.  The cryptographic
        !            37:  * functions were removed from the code and a "Bones" distribution was
        !            38:  * made.  A Commodity Jurisdiction Request #012-94 was filed with the
        !            39:  * USA State Department, who handed it to the Commerce department.  The
        !            40:  * code was determined to fall under General License GTDA under ECCN 5D96G,
        !            41:  * and hence exportable.  The cryptographic interfaces were re-added by Eric
        !            42:  * Young, and then KTH proceeded to maintain the code in the free world.
        !            43:  */
        !            44:
        !            45: /*
        !            46:  * Copyright (C) 1990 by the Massachusetts Institute of Technology
        !            47:  *
        !            48:  * Export of this software from the United States of America is assumed
        !            49:  * to require a specific license from the United States Government.
        !            50:  * It is the responsibility of any person or organization contemplating
        !            51:  * export to obtain such a license before exporting.
        !            52:  *
        !            53:  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
        !            54:  * distribute this software and its documentation for any purpose and
        !            55:  * without fee is hereby granted, provided that the above copyright
        !            56:  * notice appear in all copies and that both that copyright notice and
        !            57:  * this permission notice appear in supporting documentation, and that
        !            58:  * the name of M.I.T. not be used in advertising or publicity pertaining
        !            59:  * to distribution of the software without specific, written prior
        !            60:  * permission.  M.I.T. makes no representations about the suitability of
        !            61:  * this software for any purpose.  It is provided "as is" without express
        !            62:  * or implied warranty.
        !            63:  */
        !            64:
        !            65: /* $KTH: encrypt.h,v 1.4 1997/01/24 23:10:56 assar Exp $ */
        !            66:
        !            67: #ifndef        __ENCRYPT__
        !            68: #define        __ENCRYPT__
        !            69:
        !            70: #define        DIR_DECRYPT             1
        !            71: #define        DIR_ENCRYPT             2
        !            72:
        !            73: #define        VALIDKEY(key)   ( key[0] | key[1] | key[2] | key[3] | \
        !            74:                          key[4] | key[5] | key[6] | key[7])
        !            75:
        !            76: #define        SAMEKEY(k1, k2) (!memcmp(k1, k2, sizeof(des_cblock)))
        !            77:
        !            78: typedef        struct {
        !            79:        short           type;
        !            80:        int             length;
        !            81:        unsigned char   *data;
        !            82: } Session_Key;
        !            83:
        !            84: typedef struct {
        !            85:        char    *name;
        !            86:        int     type;
        !            87:        void    (*output) (unsigned char *, int);
        !            88:        int     (*input) (int);
        !            89:        void    (*init) (int);
        !            90:        int     (*start) (int, int);
        !            91:        int     (*is) (unsigned char *, int);
        !            92:        int     (*reply) (unsigned char *, int);
        !            93:        void    (*session) (Session_Key *, int);
        !            94:        int     (*keyid) (int, unsigned char *, int *);
        !            95:        void    (*printsub) (unsigned char *, int, unsigned char *, int);
        !            96: } Encryptions;
        !            97:
        !            98: #define        SK_DES          1       /* Matched Kerberos v5 KEYTYPE_DES */
        !            99:
        !           100: #include "enc-proto.h"
        !           101:
        !           102: extern int encrypt_debug_mode;
        !           103: extern int (*decrypt_input) (int);
        !           104: extern void (*encrypt_output) (unsigned char *, int);
        !           105: #endif