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acaf34fd82
As promised in last release announcement: remove support for Blowfish, RC4 and CAST ciphers. ok markus@ deraadt@ Upstream-ID: 21f8facdba3fd8da248df6417000867cec6ba222
76 lines
3.1 KiB
C
76 lines
3.1 KiB
C
/* $OpenBSD: cipher.h,v 1.52 2017/05/07 23:12:57 djm Exp $ */
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/*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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*
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* As far as I am concerned, the code I have written for this software
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* can be used freely for any purpose. Any derived versions of this
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*
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* Copyright (c) 2000 Markus Friedl. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef CIPHER_H
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#define CIPHER_H
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#include <sys/types.h>
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#include <openssl/evp.h>
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#include "cipher-chachapoly.h"
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#include "cipher-aesctr.h"
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#define CIPHER_ENCRYPT 1
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#define CIPHER_DECRYPT 0
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struct sshcipher;
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struct sshcipher_ctx;
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const struct sshcipher *cipher_by_name(const char *);
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const char *cipher_warning_message(const struct sshcipher_ctx *);
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int ciphers_valid(const char *);
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char *cipher_alg_list(char, int);
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int cipher_init(struct sshcipher_ctx **, const struct sshcipher *,
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const u_char *, u_int, const u_char *, u_int, int);
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int cipher_crypt(struct sshcipher_ctx *, u_int, u_char *, const u_char *,
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u_int, u_int, u_int);
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int cipher_get_length(struct sshcipher_ctx *, u_int *, u_int,
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const u_char *, u_int);
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void cipher_free(struct sshcipher_ctx *);
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u_int cipher_blocksize(const struct sshcipher *);
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u_int cipher_keylen(const struct sshcipher *);
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u_int cipher_seclen(const struct sshcipher *);
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u_int cipher_authlen(const struct sshcipher *);
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u_int cipher_ivlen(const struct sshcipher *);
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u_int cipher_is_cbc(const struct sshcipher *);
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u_int cipher_ctx_is_plaintext(struct sshcipher_ctx *);
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int cipher_get_keyiv(struct sshcipher_ctx *, u_char *, u_int);
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int cipher_set_keyiv(struct sshcipher_ctx *, const u_char *);
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int cipher_get_keyiv_len(const struct sshcipher_ctx *);
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#endif /* CIPHER_H */
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