Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2001 Markus Friedl. All rights reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * 1. Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer in the |
| 11 | * documentation and/or other materials provided with the distribution. |
| 12 | * |
| 13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 23 | */ |
| 24 | |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 25 | #include "includes.h" |
Damien Miller | 85de580 | 2001-09-18 14:01:11 +1000 | [diff] [blame] | 26 | #ifdef SMARTCARD |
Ben Lindstrom | 0b675b1 | 2002-03-22 03:28:11 +0000 | [diff] [blame^] | 27 | RCSID("$OpenBSD: scard.c,v 1.18 2002/03/21 16:38:06 markus Exp $"); |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 28 | |
| 29 | #include <openssl/engine.h> |
| 30 | #include <sectok.h> |
| 31 | |
| 32 | #include "key.h" |
| 33 | #include "log.h" |
| 34 | #include "xmalloc.h" |
| 35 | #include "scard.h" |
| 36 | |
Ben Lindstrom | 0b675b1 | 2002-03-22 03:28:11 +0000 | [diff] [blame^] | 37 | #ifdef OPENSSL_VERSION_NUMBER |
| 38 | #if OPENSSL_VERSION_NUMBER >= 0x00907000L |
| 39 | #define RSA_get_default_openssl_method RSA_get_default_method |
| 40 | #define DSA_get_default_openssl_method DSA_get_default_method |
| 41 | #define DH_get_default_openssl_method DH_get_default_method |
| 42 | #define ENGINE_set_BN_mod_exp(x,y) |
| 43 | #endif |
| 44 | #endif |
| 45 | |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 46 | #define CLA_SSH 0x05 |
| 47 | #define INS_DECRYPT 0x10 |
| 48 | #define INS_GET_KEYLENGTH 0x20 |
| 49 | #define INS_GET_PUBKEY 0x30 |
| 50 | #define INS_GET_RESPONSE 0xc0 |
| 51 | |
| 52 | #define MAX_BUF_SIZE 256 |
| 53 | |
| 54 | static int sc_fd = -1; |
Ben Lindstrom | f7db3bb | 2001-08-06 21:35:51 +0000 | [diff] [blame] | 55 | static char *sc_reader_id = NULL; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 56 | static int cla = 0x00; /* class */ |
| 57 | |
| 58 | /* interface to libsectok */ |
| 59 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 60 | static int |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 61 | sc_open(void) |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 62 | { |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 63 | int sw; |
| 64 | |
| 65 | if (sc_fd >= 0) |
| 66 | return sc_fd; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 67 | |
Ben Lindstrom | f7db3bb | 2001-08-06 21:35:51 +0000 | [diff] [blame] | 68 | sc_fd = sectok_friendly_open(sc_reader_id, STONOWAIT, &sw); |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 69 | if (sc_fd < 0) { |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 70 | error("sectok_open failed: %s", sectok_get_sw(sw)); |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 71 | return SCARD_ERROR_FAIL; |
| 72 | } |
| 73 | if (! sectok_cardpresent(sc_fd)) { |
Ben Lindstrom | f7db3bb | 2001-08-06 21:35:51 +0000 | [diff] [blame] | 74 | debug("smartcard in reader %s not present, skipping", |
| 75 | sc_reader_id); |
Ben Lindstrom | 3ab1dfa | 2001-08-06 21:33:44 +0000 | [diff] [blame] | 76 | sc_close(); |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 77 | return SCARD_ERROR_NOCARD; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 78 | } |
Ben Lindstrom | 60df8e4 | 2001-08-06 21:10:52 +0000 | [diff] [blame] | 79 | if (sectok_reset(sc_fd, 0, NULL, &sw) <= 0) { |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 80 | error("sectok_reset failed: %s", sectok_get_sw(sw)); |
| 81 | sc_fd = -1; |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 82 | return SCARD_ERROR_FAIL; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 83 | } |
Ben Lindstrom | 60df8e4 | 2001-08-06 21:10:52 +0000 | [diff] [blame] | 84 | if ((cla = cyberflex_inq_class(sc_fd)) < 0) |
| 85 | cla = 0; |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 86 | |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 87 | debug("sc_open ok %d", sc_fd); |
| 88 | return sc_fd; |
| 89 | } |
| 90 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 91 | static int |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 92 | sc_enable_applet(void) |
| 93 | { |
Ben Lindstrom | 60df8e4 | 2001-08-06 21:10:52 +0000 | [diff] [blame] | 94 | static u_char aid[] = {0xfc, 0x53, 0x73, 0x68, 0x2e, 0x62, 0x69, 0x6e}; |
| 95 | int sw = 0; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 96 | |
Ben Lindstrom | 60df8e4 | 2001-08-06 21:10:52 +0000 | [diff] [blame] | 97 | /* select applet id */ |
| 98 | sectok_apdu(sc_fd, cla, 0xa4, 0x04, 0, sizeof aid, aid, 0, NULL, &sw); |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 99 | if (!sectok_swOK(sw)) { |
| 100 | error("sectok_apdu failed: %s", sectok_get_sw(sw)); |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 101 | sc_close(); |
| 102 | return -1; |
| 103 | } |
| 104 | return 0; |
| 105 | } |
| 106 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 107 | static int |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 108 | sc_init(void) |
| 109 | { |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 110 | int status; |
| 111 | |
| 112 | status = sc_open(); |
| 113 | if (status == SCARD_ERROR_NOCARD) { |
| 114 | return SCARD_ERROR_NOCARD; |
| 115 | } |
| 116 | if (status < 0 ) { |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 117 | error("sc_open failed"); |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 118 | return status; |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 119 | } |
| 120 | if (sc_enable_applet() < 0) { |
| 121 | error("sc_enable_applet failed"); |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 122 | return SCARD_ERROR_APPLET; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 123 | } |
| 124 | return 0; |
| 125 | } |
| 126 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 127 | static int |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 128 | sc_read_pubkey(Key * k) |
| 129 | { |
| 130 | u_char buf[2], *n; |
| 131 | char *p; |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 132 | int len, sw, status = -1; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 133 | |
| 134 | len = sw = 0; |
Damien Miller | 3ff36d6 | 2001-09-28 19:51:54 +1000 | [diff] [blame] | 135 | n = NULL; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 136 | |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 137 | if (sc_fd < 0) { |
| 138 | status = sc_init(); |
| 139 | if (status < 0 ) |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 140 | goto err; |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 141 | } |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 142 | |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 143 | /* get key size */ |
| 144 | sectok_apdu(sc_fd, CLA_SSH, INS_GET_KEYLENGTH, 0, 0, 0, NULL, |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 145 | sizeof(buf), buf, &sw); |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 146 | if (!sectok_swOK(sw)) { |
| 147 | error("could not obtain key length: %s", sectok_get_sw(sw)); |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 148 | goto err; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 149 | } |
| 150 | len = (buf[0] << 8) | buf[1]; |
| 151 | len /= 8; |
| 152 | debug("INS_GET_KEYLENGTH: len %d sw %s", len, sectok_get_sw(sw)); |
| 153 | |
| 154 | n = xmalloc(len); |
| 155 | /* get n */ |
| 156 | sectok_apdu(sc_fd, CLA_SSH, INS_GET_PUBKEY, 0, 0, 0, NULL, len, n, &sw); |
| 157 | if (!sectok_swOK(sw)) { |
| 158 | error("could not obtain public key: %s", sectok_get_sw(sw)); |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 159 | goto err; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 160 | } |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 161 | |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 162 | debug("INS_GET_KEYLENGTH: sw %s", sectok_get_sw(sw)); |
| 163 | |
| 164 | if (BN_bin2bn(n, len, k->rsa->n) == NULL) { |
| 165 | error("c_read_pubkey: BN_bin2bn failed"); |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 166 | goto err; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 167 | } |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 168 | |
| 169 | /* currently the java applet just stores 'n' */ |
| 170 | if (!BN_set_word(k->rsa->e, 35)) { |
| 171 | error("c_read_pubkey: BN_set_word(e, 35) failed"); |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 172 | goto err; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 173 | } |
| 174 | |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 175 | status = 0; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 176 | p = key_fingerprint(k, SSH_FP_MD5, SSH_FP_HEX); |
| 177 | debug("fingerprint %d %s", key_size(k), p); |
| 178 | xfree(p); |
| 179 | |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 180 | err: |
| 181 | if (n != NULL) |
| 182 | xfree(n); |
| 183 | sc_close(); |
| 184 | return status; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 185 | } |
| 186 | |
| 187 | /* private key operations */ |
| 188 | |
| 189 | static int |
Ben Lindstrom | 0b675b1 | 2002-03-22 03:28:11 +0000 | [diff] [blame^] | 190 | sc_private_decrypt(int flen, const u_char *from, u_char *to, RSA *rsa, |
| 191 | int padding) |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 192 | { |
| 193 | u_char *padded = NULL; |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 194 | int sw, len, olen, status = -1; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 195 | |
| 196 | debug("sc_private_decrypt called"); |
| 197 | |
| 198 | olen = len = sw = 0; |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 199 | if (sc_fd < 0) { |
| 200 | status = sc_init(); |
| 201 | if (status < 0 ) |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 202 | goto err; |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 203 | } |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 204 | if (padding != RSA_PKCS1_PADDING) |
| 205 | goto err; |
| 206 | |
| 207 | len = BN_num_bytes(rsa->n); |
| 208 | padded = xmalloc(len); |
| 209 | |
Ben Lindstrom | 0b675b1 | 2002-03-22 03:28:11 +0000 | [diff] [blame^] | 210 | sectok_apdu(sc_fd, CLA_SSH, INS_DECRYPT, 0, 0, len, (u_char *)from, |
| 211 | 0, NULL, &sw); |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 212 | if (!sectok_swOK(sw)) { |
| 213 | error("sc_private_decrypt: INS_DECRYPT failed: %s", |
| 214 | sectok_get_sw(sw)); |
| 215 | goto err; |
| 216 | } |
| 217 | sectok_apdu(sc_fd, CLA_SSH, INS_GET_RESPONSE, 0, 0, 0, NULL, |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 218 | len, padded, &sw); |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 219 | if (!sectok_swOK(sw)) { |
| 220 | error("sc_private_decrypt: INS_GET_RESPONSE failed: %s", |
| 221 | sectok_get_sw(sw)); |
| 222 | goto err; |
| 223 | } |
| 224 | olen = RSA_padding_check_PKCS1_type_2(to, len, padded + 1, len - 1, |
| 225 | len); |
| 226 | err: |
| 227 | if (padded) |
| 228 | xfree(padded); |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 229 | sc_close(); |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 230 | return (olen >= 0 ? olen : status); |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | static int |
Ben Lindstrom | 0b675b1 | 2002-03-22 03:28:11 +0000 | [diff] [blame^] | 234 | sc_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa, |
| 235 | int padding) |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 236 | { |
| 237 | u_char *padded = NULL; |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 238 | int sw, len, status = -1; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 239 | |
| 240 | len = sw = 0; |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 241 | if (sc_fd < 0) { |
| 242 | status = sc_init(); |
| 243 | if (status < 0 ) |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 244 | goto err; |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 245 | } |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 246 | if (padding != RSA_PKCS1_PADDING) |
| 247 | goto err; |
| 248 | |
| 249 | debug("sc_private_encrypt called"); |
| 250 | len = BN_num_bytes(rsa->n); |
| 251 | padded = xmalloc(len); |
| 252 | |
Ben Lindstrom | 0b675b1 | 2002-03-22 03:28:11 +0000 | [diff] [blame^] | 253 | if (RSA_padding_add_PKCS1_type_1(padded, len, (u_char *)from, flen) <= 0) { |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 254 | error("RSA_padding_add_PKCS1_type_1 failed"); |
| 255 | goto err; |
| 256 | } |
| 257 | sectok_apdu(sc_fd, CLA_SSH, INS_DECRYPT, 0, 0, len, padded, 0, NULL, &sw); |
| 258 | if (!sectok_swOK(sw)) { |
| 259 | error("sc_private_decrypt: INS_DECRYPT failed: %s", |
| 260 | sectok_get_sw(sw)); |
| 261 | goto err; |
| 262 | } |
| 263 | sectok_apdu(sc_fd, CLA_SSH, INS_GET_RESPONSE, 0, 0, 0, NULL, |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 264 | len, to, &sw); |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 265 | if (!sectok_swOK(sw)) { |
| 266 | error("sc_private_decrypt: INS_GET_RESPONSE failed: %s", |
| 267 | sectok_get_sw(sw)); |
| 268 | goto err; |
| 269 | } |
| 270 | err: |
| 271 | if (padded) |
| 272 | xfree(padded); |
Ben Lindstrom | a2fec90 | 2001-09-18 05:45:44 +0000 | [diff] [blame] | 273 | sc_close(); |
Ben Lindstrom | 30b00be | 2001-08-06 21:22:10 +0000 | [diff] [blame] | 274 | return (len >= 0 ? len : status); |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 275 | } |
| 276 | |
Ben Lindstrom | a6c8a8d | 2001-08-06 21:42:00 +0000 | [diff] [blame] | 277 | /* called on free */ |
| 278 | |
| 279 | static int (*orig_finish)(RSA *rsa) = NULL; |
| 280 | |
| 281 | static int |
| 282 | sc_finish(RSA *rsa) |
| 283 | { |
| 284 | if (orig_finish) |
| 285 | orig_finish(rsa); |
| 286 | sc_close(); |
| 287 | return 1; |
| 288 | } |
| 289 | |
| 290 | |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 291 | /* engine for overloading private key operations */ |
| 292 | |
| 293 | static ENGINE *smart_engine = NULL; |
Ben Lindstrom | 0b675b1 | 2002-03-22 03:28:11 +0000 | [diff] [blame^] | 294 | static RSA_METHOD smart_rsa; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 295 | |
| 296 | ENGINE * |
| 297 | sc_get_engine(void) |
| 298 | { |
Ben Lindstrom | 0b675b1 | 2002-03-22 03:28:11 +0000 | [diff] [blame^] | 299 | const RSA_METHOD *def; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 300 | |
| 301 | def = RSA_get_default_openssl_method(); |
| 302 | |
Ben Lindstrom | 0b675b1 | 2002-03-22 03:28:11 +0000 | [diff] [blame^] | 303 | /* use the OpenSSL version */ |
| 304 | memcpy(&smart_rsa, def, sizeof(smart_rsa)); |
| 305 | |
| 306 | smart_rsa.name = "sectok"; |
| 307 | |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 308 | /* overload */ |
| 309 | smart_rsa.rsa_priv_enc = sc_private_encrypt; |
| 310 | smart_rsa.rsa_priv_dec = sc_private_decrypt; |
| 311 | |
Ben Lindstrom | a6c8a8d | 2001-08-06 21:42:00 +0000 | [diff] [blame] | 312 | /* save original */ |
| 313 | orig_finish = def->finish; |
| 314 | smart_rsa.finish = sc_finish; |
| 315 | |
Damien Miller | da75516 | 2002-01-22 23:09:22 +1100 | [diff] [blame] | 316 | if ((smart_engine = ENGINE_new()) == NULL) |
| 317 | fatal("ENGINE_new failed"); |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 318 | |
| 319 | ENGINE_set_id(smart_engine, "sectok"); |
| 320 | ENGINE_set_name(smart_engine, "libsectok"); |
Ben Lindstrom | 0b675b1 | 2002-03-22 03:28:11 +0000 | [diff] [blame^] | 321 | |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 322 | ENGINE_set_RSA(smart_engine, &smart_rsa); |
| 323 | ENGINE_set_DSA(smart_engine, DSA_get_default_openssl_method()); |
| 324 | ENGINE_set_DH(smart_engine, DH_get_default_openssl_method()); |
| 325 | ENGINE_set_RAND(smart_engine, RAND_SSLeay()); |
| 326 | ENGINE_set_BN_mod_exp(smart_engine, BN_mod_exp); |
| 327 | |
| 328 | return smart_engine; |
| 329 | } |
| 330 | |
Damien Miller | 694be4b | 2001-07-14 12:13:26 +1000 | [diff] [blame] | 331 | void |
| 332 | sc_close(void) |
| 333 | { |
| 334 | if (sc_fd >= 0) { |
| 335 | sectok_close(sc_fd); |
| 336 | sc_fd = -1; |
| 337 | } |
| 338 | } |
| 339 | |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 340 | Key * |
Ben Lindstrom | f7db3bb | 2001-08-06 21:35:51 +0000 | [diff] [blame] | 341 | sc_get_key(const char *id) |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 342 | { |
| 343 | Key *k; |
Ben Lindstrom | 94baf30 | 2001-08-06 21:25:38 +0000 | [diff] [blame] | 344 | int status; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 345 | |
Ben Lindstrom | f7db3bb | 2001-08-06 21:35:51 +0000 | [diff] [blame] | 346 | if (sc_reader_id != NULL) |
| 347 | xfree(sc_reader_id); |
| 348 | sc_reader_id = xstrdup(id); |
| 349 | |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 350 | k = key_new(KEY_RSA); |
| 351 | if (k == NULL) { |
| 352 | return NULL; |
| 353 | } |
Ben Lindstrom | 94baf30 | 2001-08-06 21:25:38 +0000 | [diff] [blame] | 354 | status = sc_read_pubkey(k); |
| 355 | if (status == SCARD_ERROR_NOCARD) { |
| 356 | key_free(k); |
| 357 | return NULL; |
| 358 | } |
| 359 | if (status < 0 ) { |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 360 | error("sc_read_pubkey failed"); |
| 361 | key_free(k); |
| 362 | return NULL; |
| 363 | } |
| 364 | return k; |
Ben Lindstrom | 3133dbb | 2001-07-04 05:35:00 +0000 | [diff] [blame] | 365 | } |
Ben Lindstrom | bcc1808 | 2001-08-06 21:59:25 +0000 | [diff] [blame] | 366 | #endif /* SMARTCARD */ |