370 lines
10 KiB
C
370 lines
10 KiB
C
/*
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* PKCS15 emulation layer for Postecert and Cnipa card.
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* To see how this works, run p15dump on your Postecert or Cnipa Card.
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*
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* Copyright (C) 2004, Antonino Iacono <ant_iacono@tin.it>
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* Copyright (C) 2003, Olaf Kirch <okir@suse.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include "common/compat_strlcpy.h"
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#include "internal.h"
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#include "pkcs15.h"
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#include "log.h"
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int sc_pkcs15emu_postecert_init_ex(sc_pkcs15_card_t *, struct sc_aid *, sc_pkcs15emu_opt_t *);
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static int (*set_security_env) (sc_card_t *, const sc_security_env_t *, int);
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static int set_sec_env(sc_card_t * card, const sc_security_env_t *env,
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int se_num)
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{
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sc_security_env_t tenv = *env;
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if (tenv.operation == SC_SEC_OPERATION_SIGN)
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tenv.operation = SC_SEC_OPERATION_DECIPHER;
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return set_security_env(card, &tenv, se_num);
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}
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static int do_sign(sc_card_t * card, const u8 * in, size_t inlen, u8 * out,
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size_t outlen)
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{
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return card->ops->decipher(card, in, inlen, out, outlen);
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}
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static void set_string(char **strp, const char *value)
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{
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if (*strp)
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free(*strp);
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*strp = value ? strdup(value) : NULL;
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}
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#if 1
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/* XXX: temporary copy of the old pkcs15emu functions,
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* to be removed */
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static int sc_pkcs15emu_add_pin(sc_pkcs15_card_t *p15card,
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const sc_pkcs15_id_t *id, const char *label,
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const sc_path_t *path, int ref, int type,
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unsigned int min_length,
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unsigned int max_length,
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int flags, int tries_left, const char pad_char, int obj_flags)
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{
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sc_pkcs15_auth_info_t info;
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sc_pkcs15_object_t obj;
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memset(&info, 0, sizeof(info));
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memset(&obj, 0, sizeof(obj));
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info.auth_id = *id;
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info.auth_type = SC_PKCS15_PIN_AUTH_TYPE_PIN;
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info.attrs.pin.min_length = min_length;
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info.attrs.pin.max_length = max_length;
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info.attrs.pin.stored_length = max_length;
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info.attrs.pin.type = type;
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info.attrs.pin.reference = ref;
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info.attrs.pin.flags = flags;
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info.attrs.pin.pad_char = pad_char;
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info.tries_left = tries_left;
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info.logged_in = SC_PIN_STATE_UNKNOWN;
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if (path)
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info.path = *path;
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if (type == SC_PKCS15_PIN_TYPE_BCD)
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info.attrs.pin.stored_length /= 2;
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strlcpy(obj.label, label, sizeof(obj.label));
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obj.flags = obj_flags;
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return sc_pkcs15emu_add_pin_obj(p15card, &obj, &info);
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}
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static int sc_pkcs15emu_add_prkey(sc_pkcs15_card_t *p15card,
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const sc_pkcs15_id_t *id,
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const char *label,
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int type, unsigned int modulus_length, int usage,
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const sc_path_t *path, int ref,
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const sc_pkcs15_id_t *auth_id, int obj_flags)
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{
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sc_pkcs15_prkey_info_t info;
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sc_pkcs15_object_t obj;
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memset(&info, 0, sizeof(info));
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memset(&obj, 0, sizeof(obj));
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info.id = *id;
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info.modulus_length = modulus_length;
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info.usage = usage;
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info.native = 1;
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info.key_reference = ref;
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if (path)
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info.path = *path;
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obj.flags = obj_flags;
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strlcpy(obj.label, label, sizeof(obj.label));
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if (auth_id != NULL)
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obj.auth_id = *auth_id;
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return sc_pkcs15emu_add_rsa_prkey(p15card, &obj, &info);
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}
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static int sc_pkcs15emu_add_cert(sc_pkcs15_card_t *p15card,
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int type, int authority, const sc_path_t *path,
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const sc_pkcs15_id_t *id, const char *label, int obj_flags)
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{
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/* const char *label = "Certificate"; */
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sc_pkcs15_cert_info_t info;
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sc_pkcs15_object_t obj;
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memset(&info, 0, sizeof(info));
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memset(&obj, 0, sizeof(obj));
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info.id = *id;
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info.authority = authority;
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if (path)
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info.path = *path;
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strlcpy(obj.label, label, sizeof(obj.label));
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obj.flags = obj_flags;
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return sc_pkcs15emu_add_x509_cert(p15card, &obj, &info);
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}
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#endif
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static int sc_pkcs15emu_postecert_init(sc_pkcs15_card_t * p15card)
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{
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static int prkey_usage = SC_PKCS15_PRKEY_USAGE_NONREPUDIATION;
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static int authprkey_usage = SC_PKCS15_PRKEY_USAGE_SIGN
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| SC_PKCS15_PRKEY_USAGE_SIGNRECOVER
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| SC_PKCS15_PRKEY_USAGE_ENCRYPT
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| SC_PKCS15_PRKEY_USAGE_DECRYPT;
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sc_card_t *card = p15card->card;
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sc_path_t path;
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sc_pkcs15_id_t id, auth_id;
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unsigned char certlen[2];
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unsigned char *certi = NULL;
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int index_cert[4];
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int count_cert[4];
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int flags;
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int authority;
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size_t i, count;
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int r;
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int o = 0;
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const char *label = "User Non-repudiation Certificate";
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const char *calabel = "CA Certificate";
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const char *catmslabel = "CA TimeStamper Certificate";
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const char *authlabel = "User Authentication Certificate";
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const char *postecert_auth_cert_path = "504B0001";
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const char *authPIN = "Authentication PIN";
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const char *nonrepPIN = "Non-repudiation PIN";
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const char *authPRKEY = "Authentication Key";
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const char *nonrepPRKEY = "Non repudiation Key";
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memset(index_cert, 0, sizeof(index_cert));
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memset(count_cert, 0, sizeof(count_cert));
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/* Get the non-repudiation certificate length */
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sc_format_path(postecert_auth_cert_path, &path);
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if (sc_select_file(card, &path, NULL) < 0) {
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r = SC_ERROR_WRONG_CARD;
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goto failed;
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}
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set_string(&p15card->tokeninfo->label, "Postecert & Cnipa Card");
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set_string(&p15card->tokeninfo->manufacturer_id, "Postecert");
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set_string(&p15card->tokeninfo->serial_number, "0000");
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sc_read_binary(card, 0, certlen, 2, 0);
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/* Now set the certificate offset/len */
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count = (certlen[0] << 8) + certlen[1];
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if (count < 256)
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return SC_ERROR_INTERNAL;
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certi = malloc(count);
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if (!certi)
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return SC_ERROR_OUT_OF_MEMORY;
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sc_read_binary(card, 0, certi, count - 500, 0);
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for (i = 2; i < (count - 256); i++) {
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/* this file contain more than one certificate */
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if (*(certi + i) == 0x30 && *(certi + i + 1) == 0x82
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&& *(certi + i + 4) == 0x30 && *(certi + i + 5) == 0x82
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&& *(certi + i + 2) > 1 && *(certi + i + 2) < 8
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&& *(certi + i + 6) <= *(certi + i + 2)) {
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index_cert[o] = i;
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count_cert[o] =
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(*(certi + i + 2) << 8) + *(certi + i + 3) + 4;
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o++;
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if (o >= 4)
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break;
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i += (*(certi + i + 2) << 8) + *(certi + i + 3);
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}
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}
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free(certi);
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path.index = index_cert[0];
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path.count = count_cert[0];
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id.value[0] = 1;
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id.len = 1;
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authority = 1;
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sc_pkcs15emu_add_cert(p15card,
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SC_PKCS15_TYPE_CERT_X509, authority,
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&path, &id, calabel, SC_PKCS15_CO_FLAG_MODIFIABLE);
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path.index = index_cert[1];
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path.count = count_cert[1];
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id.value[0] = 2;
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id.len = 1;
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authority = 1;
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sc_pkcs15emu_add_cert(p15card,
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SC_PKCS15_TYPE_CERT_X509, authority,
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&path, &id, catmslabel, SC_PKCS15_CO_FLAG_MODIFIABLE);
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path.index = index_cert[2];
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path.count = count_cert[2];
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id.value[0] = 3;
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id.len = 1;
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authority = 0;
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sc_pkcs15emu_add_cert(p15card,
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SC_PKCS15_TYPE_CERT_X509, authority,
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&path, &id, label, SC_PKCS15_CO_FLAG_MODIFIABLE);
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path.index = index_cert[3];
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path.count = count_cert[3];
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id.value[0] = 4;
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id.len = 1;
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sc_pkcs15emu_add_cert(p15card,
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SC_PKCS15_TYPE_CERT_X509, authority,
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&path, &id, authlabel, SC_PKCS15_CO_FLAG_MODIFIABLE);
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flags = SC_PKCS15_PIN_FLAG_CASE_SENSITIVE |
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SC_PKCS15_PIN_FLAG_INITIALIZED | SC_PKCS15_PIN_FLAG_NEEDS_PADDING;
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/* add authentication PIN */
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sc_format_path("3F00504B", &path);
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id.value[0] = 1;
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sc_pkcs15emu_add_pin(p15card, &id,
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authPIN, &path, 0x82,
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SC_PKCS15_PIN_TYPE_ASCII_NUMERIC,
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6, 14, flags, 3, 0,
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SC_PKCS15_CO_FLAG_MODIFIABLE |
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SC_PKCS15_CO_FLAG_PRIVATE);
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/* add authentication private key */
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id.value[0] = 4;
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auth_id.value[0] = 1;
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auth_id.len = 1;
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sc_pkcs15emu_add_prkey(p15card, &id,
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authPRKEY,
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SC_PKCS15_TYPE_PRKEY_RSA,
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1024, authprkey_usage,
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&path, 0x06, &auth_id, SC_PKCS15_CO_FLAG_PRIVATE);
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/* add non repudiation PIN */
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sc_format_path("3F00504B", &path);
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id.value[0] = 2;
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sc_pkcs15emu_add_pin(p15card, &id,
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nonrepPIN, &path, 0x82,
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SC_PKCS15_PIN_TYPE_ASCII_NUMERIC,
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6, 14, flags, 3, 0,
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SC_PKCS15_CO_FLAG_MODIFIABLE |
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SC_PKCS15_CO_FLAG_PRIVATE);
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/* add non repudiation private key */
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id.value[0] = 3;
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auth_id.value[0] = 2;
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sc_pkcs15emu_add_prkey(p15card, &id,
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nonrepPRKEY,
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SC_PKCS15_TYPE_PRKEY_RSA,
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1024, prkey_usage,
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&path, 0x01, &auth_id, SC_PKCS15_CO_FLAG_PRIVATE);
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/* return to MF */
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sc_format_path("3F00", &path);
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r = sc_select_file(card, &path, NULL);
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if (r != SC_SUCCESS)
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return r;
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{
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/* save old signature funcs */
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set_security_env = card->ops->set_security_env;
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/* set new one */
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card->ops->set_security_env = set_sec_env;
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card->ops->compute_signature = do_sign;
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}
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return 0;
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failed:
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sc_debug(card->ctx, SC_LOG_DEBUG_NORMAL,
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"Failed to initialize Postecert and Cnipa emulation: %s\n",
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sc_strerror(r));
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return r;
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}
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static int postecert_detect_card(sc_pkcs15_card_t * p15card)
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{
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sc_card_t *card = p15card->card;
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/* check if we have the correct card OS */
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if (strcmp(card->name, "CardOS M4"))
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return SC_ERROR_WRONG_CARD;
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return SC_SUCCESS;
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}
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int sc_pkcs15emu_postecert_init_ex(sc_pkcs15_card_t * p15card,
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struct sc_aid *aid,
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sc_pkcs15emu_opt_t * opts)
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{
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if (opts && opts->flags & SC_PKCS15EMU_FLAGS_NO_CHECK)
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return sc_pkcs15emu_postecert_init(p15card);
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else {
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int r = postecert_detect_card(p15card);
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if (r)
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return SC_ERROR_WRONG_CARD;
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return sc_pkcs15emu_postecert_init(p15card);
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}
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}
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