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/*
* crypt.h: header for crypt.c
*
* Written By Michael Sandrof
*
* Copyright (c) 1990 Michael Sandrof.
* Copyright (c) 1991, 1992 Troy Rollo.
* Copyright (c) 1992-1998 Matthew R. Green.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)$Id: crypt.h,v 1.4 2000/08/09 19:31:20 f Exp $
*/
#ifndef __crypt_h_
#define __crypt_h_
#define CTCP_SHUTUP 0
#define CTCP_VERBOSE 1
#define CTCP_NOREPLY 2
/*
* crypt interface
*/
typedef struct crypt_key crypt_key;
typedef void (*CryptFunc) _((char **, int *, crypt_key *));
struct crypt_key
{
u_char *key;
char *type;
CryptFunc crypt;
CryptFunc decrypt;
};
/*
* function interfaces we have
*/
char *crypt_msg _((char *, crypt_key *, int));
void encrypt_cmd _((char *, char *, char *));
crypt_key *is_crypted _((char *));
/*
* the broken old `ctcp sed' crap. we retain this but make it
* optional..
*/
#ifndef NO_USE_SED
#define USE_SED
#endif
/*
* a crypter must define a `<CRYPTER>_CTCP_ENTRY', which is added to
* CRYPTO_CTCP_ENTRIES, and a default crypter/decrypter functions.
* should let the user somehow set these so that one of them can
* for to be the default.
*/
#ifdef USE_CAST
# define CAST_STRING "CAST128-CBC"
# define CAST_CTCP_ENTRY { CAST_STRING, "contains CAST-128 strongly encrypted data, CBC mode", \
CTCP_SHUTUP | CTCP_NOREPLY, do_crypto },
# ifndef DEFAULT_CRYPTER
# define DEFAULT_CRYPTER cast_encrypt_str
# define DEFAULT_DECRYPTER cast_decrypt_str
# define DEFAULT_CRYPTYPE CAST_STRING
# endif
#else
# define CAST_CTCP_ENTRY
#endif
#ifdef USE_SED
# define SED_STRING "SED"
# define SED_CTCP_ENTRY { SED_STRING, "contains simple weekly encrypted data", \
CTCP_SHUTUP | CTCP_NOREPLY, do_crypto },
# ifndef DEFAULT_CRYPTER
# define DEFAULT_CRYPTER sed_encrypt_str
# define DEFAULT_DECRYPTER sed_decrypt_str
# define DEFAULT_CRYPTYPE SED_STRING
# endif
#else
# define SED_CTCP_ENTRY
#endif
#define CRYPTO_CTCP_ENTRIES \
CAST_CTCP_ENTRY \
SED_CTCP_ENTRY
#endif /* _crypt_h_ */
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