1/*
2 * Copyright (c) 2009 Kungliga Tekniska H�gskolan
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 the Institute nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include "ec.h"
35
36struct EC_POINT {
37    int inf;
38    mp_int x;
39    mp_int y;
40    mp_int z;
41};
42
43struct EC_GROUP {
44    size_t size;
45    mp_int prime;
46    mp_int order;
47    mp_int Gx;
48    mp_int Gy;
49};
50
51struct EC_KEY {
52    int type;
53    EC_GROUP *group;
54    EC_POINT *pubkey;
55    mp_int privkey;
56};
57
58
59unsigned long
60EC_GROUP_get_degree(EC_GROUP *)
61{
62}
63
64EC_GROUP *
65EC_KEY_get0_group(EC_KEY *)
66{
67}
68
69int
70EC_GROUP_get_order(EC_GROUP *, BIGNUM *, BN_CTX *)
71{
72}
73
74EC_KEY *
75o2i_ECPublicKey(EC_KEY **key, unsigned char **, size_t)
76{
77}
78
79void
80EC_KEY_free(EC_KEY *)
81{
82
83}
84
85EC_GROUP *
86EC_GROUP_new_by_curve_name(int nid)
87{
88}
89
90EC_KEY *
91EC_KEY_new_by_curve_name(EC_GROUP_ID nid)
92{
93    EC_KEY *key;
94
95    key = calloc(1, sizeof(*key));
96    return key;
97}
98
99void
100EC_POINT_free(EC_POINT *p)
101{
102    mp_clear_multi(&p->x, p->y, p->z, NULL);
103    free(p);
104}
105
106static int
107ec_point_mul(EC_POINT *res, const EC_GROUP *group, const mp_int *point)
108{
109}
110
111EC_POINT *
112EC_POINT_new(void)
113{
114    EC_POINT *p;
115
116    p = calloc(1, sizeof(*p));
117
118    if (mp_init_multi(&p->x, &p->y, &p->z, NULL) != 0) {
119	EC_POINT_free(p);
120	return NULL;
121    }
122
123    return p;
124}
125
126int
127EC_KEY_generate_key(EC_KEY *key)
128{
129    int ret = 0;
130
131    if (key->group == NULL)
132	return 0;
133
134    do {
135	random(key->privkey, key->group->size);
136    } while(mp_cmp(key->privkey, key->group->order) >= 0);
137
138    if (key->pubkey == NULL)
139	key->pubkey = EC_POINT_new();
140
141    if (ec_point_mul(&key->pubkey, key->group, key->privkey) != 1)
142	goto error;
143
144    ret = 1;
145 error:
146    ECPOINT_free(&base);
147
148    return ret;
149}
150
151void
152EC_KEY_set_group(EC_KEY *, EC_GROUP *)
153{
154
155}
156
157void
158EC_GROUP_free(EC_GROUP *)
159{
160}
161
162int
163EC_KEY_check_key(const EC_KEY *)
164{
165}
166
167const BIGNUM *
168EC_KEY_get0_private_key(const EC_KEY *key)
169{
170}
171
172int
173EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *bn)
174{
175}
176