key.h

   1 /* $OpenBSD: key.h,v 1.27 2008/06/11 21:01:35 grunk Exp $ */
   2
   3 /*
   4  * Copyright (c) 2000, 2001 Markus Friedl.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26 #ifndef KEY_H
  27 #define KEY_H
  28
  29 #include <openssl/rsa.h>
  30 #include <openssl/dsa.h>
  31
  32 typedef struct Key Key;
  33 enum types {
  34         KEY_RSA1,
  35         KEY_RSA,
  36         KEY_DSA,
  37         KEY_UNSPEC
  38 };
  39 enum fp_type {
  40         SSH_FP_SHA1,
  41         SSH_FP_MD5
  42 };
  43 enum fp_rep {
  44         SSH_FP_HEX,
  45         SSH_FP_BUBBLEBABBLE,
  46         SSH_FP_RANDOMART
  47 };
  48
  49 /* key is stored in external hardware */
  50 #define KEY_FLAG_EXT            0x0001
  51
  52 struct Key {
  53         int      type;
  54         int      flags;
  55         RSA     *rsa;
  56         DSA     *dsa;
  57 };
  58
  59 Key             *key_new(int);
  60 Key             *key_new_private(int);
  61 void             key_free(Key *);
  62 Key             *key_demote(const Key *);
  63 int              key_equal(const Key *, const Key *);
  64 char            *key_fingerprint(const Key *, enum fp_type, enum fp_rep);
  65 u_char          *key_fingerprint_raw(const Key *, enum fp_type, u_int *);
  66 const char      *key_type(const Key *);
  67 int              key_write(const Key *, FILE *);
  68 int              key_read(Key *, char **);
  69 u_int            key_size(const Key *);
  70
  71 Key     *key_generate(int, u_int);
  72 Key     *key_from_private(const Key *);
  73 int      key_type_from_name(char *);
  74
  75 Key             *key_from_blob(const u_char *, u_int);
  76 int              key_to_blob(const Key *, u_char **, u_int *);
  77 const char      *key_ssh_name(const Key *);
  78 int              key_names_valid2(const char *);
  79
  80 int      key_sign(const Key *, u_char **, u_int *, const u_char *, u_int);
  81 int      key_verify(const Key *, const u_char *, u_int, const u_char *, u_int);
  82
  83 int      ssh_dss_sign(const Key *, u_char **, u_int *, const u_char *, u_int);
  84 int      ssh_dss_verify(const Key *, const u_char *, u_int, const u_char *, u_int);
  85 int      ssh_rsa_sign(const Key *, u_char **, u_int *, const u_char *, u_int);
  86 int      ssh_rsa_verify(const Key *, const u_char *, u_int, const u_char *, u_int);
  87
  88 #endif