1/*
2 * Copyright (c) 2008 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * 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 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of KTH nor the names of its contributors may be
18 *    used to endorse or promote products derived from this software without
19 *    specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
22 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
28 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#ifndef HEIM_SCRAM_H
35#define HEIM_SCRAM_H
36
37#include <sys/types.h>
38
39#ifndef __HEIM_BASE_DATA__
40#define __HEIM_BASE_DATA__ 1
41struct heim_base_data {
42	size_t length;
43	void *data;
44};
45#endif
46typedef struct heim_base_data heim_scram_data;
47
48typedef struct heim_scram heim_scram;
49
50typedef struct heim_scram_method_desc *heim_scram_method;
51
52extern struct heim_scram_method_desc heim_scram_digest_sha1_s;
53extern struct heim_scram_method_desc heim_scram_digest_sha256_s;
54
55#define HEIM_SCRAM_DIGEST_SHA1 (&heim_scram_digest_sha1_s)
56#define HEIM_SCRAM_DIGEST_SHA256 (&heim_scram_digest_sha256_s)
57
58struct heim_scram_server {
59#define SCRAM_SERVER_VERSION_1 1
60    int version;
61    int (*param)(void *ctx,
62		 const heim_scram_data *user,
63		 heim_scram_data *salt,
64		 unsigned int *iteration,
65		 heim_scram_data *servernonce);
66    int (*calculate)(void *ctx,
67		     heim_scram_method method,
68		     const heim_scram_data *user,
69		     const heim_scram_data *c1,
70		     const heim_scram_data *s1,
71		     const heim_scram_data *c2noproof,
72		     const heim_scram_data *proof,
73		     heim_scram_data *server,
74		     heim_scram_data *sessionKey);
75};
76
77struct heim_scram_client {
78#define SCRAM_CLIENT_VERSION_1 1
79    int version;
80    int (*calculate)(void *ctx,
81		     heim_scram_method method,
82		     unsigned int iterations,
83		     heim_scram_data *salt,
84		     const heim_scram_data *c1,
85		     const heim_scram_data *s1,
86		     const heim_scram_data *c2noproof,
87		     heim_scram_data *proof,
88		     heim_scram_data *server,
89		     heim_scram_data *sessionKey);
90};
91
92extern struct heim_scram_client heim_scram_client_password_procs_s;
93#define HEIM_SCRAM_CLIENT_PASSWORD_PROCS (&heim_scram_client_password_procs_s)
94
95#include <heimscram-protos.h>
96
97#endif /* SCRAM_SCRAM_H */
98