1 /* $NetBSD: ec.c,v 1.1.1.1 2011/04/13 18:14:49 elric Exp $ */ 2 3 /* 4 * Copyright (c) 2009 Kungliga Tekniska H�gskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * 3. Neither the name of the Institute nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include "ec.h" 37 38 struct EC_POINT { 39 int inf; 40 mp_int x; 41 mp_int y; 42 mp_int z; 43 }; 44 45 struct EC_GROUP { 46 size_t size; 47 mp_int prime; 48 mp_int order; 49 mp_int Gx; 50 mp_int Gy; 51 }; 52 53 struct EC_KEY { 54 int type; 55 EC_GROUP *group; 56 EC_POINT *pubkey; 57 mp_int privkey; 58 }; 59 60 61 unsigned long 62 EC_GROUP_get_degree(EC_GROUP *) 63 { 64 } 65 66 EC_GROUP * 67 EC_KEY_get0_group(EC_KEY *) 68 { 69 } 70 71 int 72 EC_GROUP_get_order(EC_GROUP *, BIGNUM *, BN_CTX *) 73 { 74 } 75 76 EC_KEY * 77 o2i_ECPublicKey(EC_KEY **key, unsigned char **, size_t) 78 { 79 } 80 81 void 82 EC_KEY_free(EC_KEY *) 83 { 84 85 } 86 87 EC_GROUP * 88 EC_GROUP_new_by_curve_name(int nid) 89 { 90 } 91 92 EC_KEY * 93 EC_KEY_new_by_curve_name(EC_GROUP_ID nid) 94 { 95 EC_KEY *key; 96 97 key = calloc(1, sizeof(*key)); 98 return key; 99 } 100 101 void 102 EC_POINT_free(EC_POINT *p) 103 { 104 mp_clear_multi(&p->x, p->y, p->z, NULL); 105 free(p); 106 } 107 108 static int 109 ec_point_mul(EC_POINT *res, const EC_GROUP *group, const mp_int *point) 110 { 111 } 112 113 EC_POINT * 114 EC_POINT_new(void) 115 { 116 EC_POINT *p; 117 118 p = calloc(1, sizeof(*p)); 119 120 if (mp_init_multi(&p->x, &p->y, &p->z, NULL) != 0) { 121 EC_POINT_free(p); 122 return NULL; 123 } 124 125 return p; 126 } 127 128 int 129 EC_KEY_generate_key(EC_KEY *key) 130 { 131 int ret = 0; 132 133 if (key->group == NULL) 134 return 0; 135 136 do { 137 random(key->privkey, key->group->size); 138 } while(mp_cmp(key->privkey, key->group->order) >= 0); 139 140 if (key->pubkey == NULL) 141 key->pubkey = EC_POINT_new(); 142 143 if (ec_point_mul(&key->pubkey, key->group, key->privkey) != 1) 144 goto error; 145 146 ret = 1; 147 error: 148 ECPOINT_free(&base); 149 150 return ret; 151 } 152 153 void 154 EC_KEY_set_group(EC_KEY *, EC_GROUP *) 155 { 156 157 } 158 159 void 160 EC_GROUP_free(EC_GROUP *) 161 { 162 } 163 164 int 165 EC_KEY_check_key(const EC_KEY *) 166 { 167 } 168 169 const BIGNUM * 170 EC_KEY_get0_private_key(const EC_KEY *key) 171 { 172 } 173 174 int 175 EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *bn) 176 { 177 } 178