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Diffstat (limited to 'cipher.h')
| -rw-r--r-- | cipher.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/cipher.h b/cipher.h new file mode 100644 index 0000000..1a591cd --- /dev/null +++ b/cipher.h @@ -0,0 +1,78 @@ +/* $OpenBSD: cipher.h,v 1.55 2020/01/23 10:24:29 dtucker Exp $ */ + +/* + * Author: Tatu Ylonen <ylo@cs.hut.fi> + * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland + * All rights reserved + * + * As far as I am concerned, the code I have written for this software + * can be used freely for any purpose. Any derived versions of this + * software must be clearly marked as such, and if the derived work is + * incompatible with the protocol description in the RFC file, it must be + * called by a name other than "ssh" or "Secure Shell". + * + * Copyright (c) 2000 Markus Friedl. 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + */ + +#ifndef CIPHER_H +#define CIPHER_H + +#include <sys/types.h> +#ifdef WITH_OPENSSL +#include <openssl/evp.h> +#endif +#include "cipher-chachapoly.h" +#include "cipher-aesctr.h" + +#define CIPHER_ENCRYPT 1 +#define CIPHER_DECRYPT 0 + +struct sshcipher; +struct sshcipher_ctx; + +const struct sshcipher *cipher_by_name(const char *); +const char *cipher_warning_message(const struct sshcipher_ctx *); +int ciphers_valid(const char *); +char *cipher_alg_list(char, int); +const char *compression_alg_list(int); +int cipher_init(struct sshcipher_ctx **, const struct sshcipher *, + const u_char *, u_int, const u_char *, u_int, int); +int cipher_crypt(struct sshcipher_ctx *, u_int, u_char *, const u_char *, + u_int, u_int, u_int); +int cipher_get_length(struct sshcipher_ctx *, u_int *, u_int, + const u_char *, u_int); +void cipher_free(struct sshcipher_ctx *); +u_int cipher_blocksize(const struct sshcipher *); +u_int cipher_keylen(const struct sshcipher *); +u_int cipher_seclen(const struct sshcipher *); +u_int cipher_authlen(const struct sshcipher *); +u_int cipher_ivlen(const struct sshcipher *); +u_int cipher_is_cbc(const struct sshcipher *); + +u_int cipher_ctx_is_plaintext(struct sshcipher_ctx *); + +int cipher_get_keyiv(struct sshcipher_ctx *, u_char *, size_t); +int cipher_set_keyiv(struct sshcipher_ctx *, const u_char *, size_t); +int cipher_get_keyiv_len(const struct sshcipher_ctx *); + +#endif /* CIPHER_H */ |