giomba
/
opensc
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
opensc/src/libopensc/card-myeid.c

1813 lines
49 KiB
C
Raw Blame History

/*
* card-myeid.c
*
* Copyright (C) 2008-2019 Aventra Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <stdlib.h>
#include "internal.h"
#include "asn1.h"
#include "cardctl.h"
#include "types.h"
/* Low byte is the MyEID card's key type specific component ID. High byte is used
* internally for key type, so myeid_loadkey() is aware of the exact component. */
#define LOAD_KEY_MODULUS 0x0080
#define LOAD_KEY_PUBLIC_EXPONENT 0x0081
#define LOAD_KEY_PRIME_P 0x0083
#define LOAD_KEY_PRIME_Q 0x0084
#define LOAD_KEY_DP1 0x0085
#define LOAD_KEY_DQ1 0x0086
#define LOAD_KEY_INVQ 0x0087
#define LOAD_KEY_EC_PUBLIC 0x1086
#define LOAD_KEY_EC_PRIVATE 0x1087
#define LOAD_KEY_SYMMETRIC 0x20a0
#define MYEID_STATE_CREATION 0x01
#define MYEID_STATE_ACTIVATED 0x07
#define MYEID_CARD_NAME_MAX_LEN 100
/* The following flags define the features supported by the card currently in use.
They are used in 'card_supported_features' field in myeid_card_caps struct */
#define MYEID_CARD_CAP_RSA 0x01
#define MYEID_CARD_CAP_3DES 0x02
#define MYEID_CARD_CAP_AES 0x04
#define MYEID_CARD_CAP_ECC 0x08
#define MYEID_CARD_CAP_GRIDPIN 0x10
#define MYEID_CARD_CAP_PIV_EMU 0x20
#define MYEID_MAX_APDU_DATA_LEN 0xFF
#define MYEID_MAX_RSA_KEY_LEN 4096
#define MYEID_MAX_EXT_APDU_BUFFER_SIZE (MYEID_MAX_RSA_KEY_LEN/8+16)
static const char *myeid_card_name = "MyEID";
static const char *oseid_card_name = "OsEID";
static char card_name_buf[MYEID_CARD_NAME_MAX_LEN];
static struct sc_card_operations myeid_ops;
static struct sc_card_driver myeid_drv = {
"MyEID cards with PKCS#15 applet",
"myeid",
&myeid_ops,
NULL,
0,
NULL
};
typedef struct myeid_private_data {
int card_state;
unsigned short change_counter;
unsigned char cap_chaining;
/* the driver sets sec_env pointer in myeid_set_security_env and
it is used immediately in myeid_decipher to differentiate between RSA decryption and
ECDH key agreement. Note that this pointer is usually not valid
after this pair of calls and must not be used elsewhere. */
const struct sc_security_env* sec_env;
} myeid_private_data_t;
typedef struct myeid_card_caps {
unsigned char card_caps_ver;
unsigned short card_supported_features;
unsigned short max_rsa_key_length;
unsigned short max_des_key_length;
unsigned short max_aes_key_length;
unsigned short max_ecc_key_length;
} myeid_card_caps_t;
static struct myeid_supported_ec_curves {
char *curve_name;
struct sc_object_id curve_oid;
size_t size;
} ec_curves[] = {
{"secp192r1", {{1, 2, 840, 10045, 3, 1, 1, -1}},192},
/* {"secp224r1", {{1, 3, 132, 0, 33, -1}}, 224}, */
{"secp256r1", {{1, 2, 840, 10045, 3, 1, 7, -1}},256},
{"secp384r1", {{1, 3, 132, 0, 34, -1}}, 384},
{"secp521r1", {{1, 3, 132, 0, 35, -1}}, 521},
{NULL, {{-1}}, 0},
};
static int myeid_get_info(struct sc_card *card, u8 *rbuf, size_t buflen);
static int myeid_get_card_caps(struct sc_card *card, myeid_card_caps_t* card_caps);
static int myeid_match_card(struct sc_card *card)
{
size_t len = card->reader->atr_info.hist_bytes_len;
/* Normally the historical bytes are exactly "MyEID", but there might
* be some historic units which have a small prefix byte sequence. */
if (len >= 5) {
if (!memcmp(&card->reader->atr_info.hist_bytes[len - 5], "MyEID", 5)) {
sc_log(card->ctx, "Matched MyEID card");
card->type = SC_CARD_TYPE_MYEID_GENERIC;
return 1;
}
/* The software implementation of MyEID is identified by OsEID bytes */
if (!memcmp(&card->reader->atr_info.hist_bytes[len - 5], "OsEID", 5)) {
sc_log(card->ctx, "Matched OsEID card");
card->type = SC_CARD_TYPE_MYEID_OSEID;
return 1;
}
}
return 0;
}
static int
myeid_select_aid(struct sc_card *card, struct sc_aid *aid, unsigned char *out, size_t *out_len)
{
struct sc_apdu apdu;
unsigned char apdu_resp[SC_MAX_APDU_BUFFER_SIZE];
int rv;
/* Select application (deselect previously selected application) */
sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0xA4, 0x04, 0x00);
apdu.lc = aid->len;
apdu.data = aid->value;
apdu.datalen = aid->len;
apdu.resplen = sizeof(apdu_resp);
apdu.resp = apdu_resp;
rv = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, rv, "APDU transmit failed");
rv = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_TEST_RET(card->ctx, rv, "Cannot select AID");
if (*out_len > 0) {
if (*out_len < apdu.resplen)
LOG_TEST_RET(card->ctx, SC_ERROR_BUFFER_TOO_SMALL, "Cannot select AID - response buffer too small.");
if (out == NULL)
LOG_TEST_RET(card->ctx, SC_ERROR_INVALID_ARGUMENTS, "Cannot select AID - invalid arguments.");
memcpy(out, apdu.resp, apdu.resplen);
*out_len = apdu.resplen;
}
return SC_SUCCESS;
}
static int myeid_init(struct sc_card *card)
{
unsigned long flags = 0, ext_flags = 0;
myeid_private_data_t *priv;
u8 appletInfo[20];
size_t appletInfoLen;
myeid_card_caps_t card_caps;
size_t resp_len = 0;
static struct sc_aid myeid_aid = { "\xA0\x00\x00\x00\x63\x50\x4B\x43\x53\x2D\x31\x35", 0x0C };
int rv = 0;
void *old_drv_data = card->drv_data;
LOG_FUNC_CALLED(card->ctx);
switch (card->type) {
case SC_CARD_TYPE_MYEID_OSEID:
card->name = oseid_card_name;
break;
case SC_CARD_TYPE_MYEID_GENERIC:
card->name = myeid_card_name;
break;
default:
LOG_FUNC_RETURN(card->ctx, SC_ERROR_INVALID_CARD);
}
priv = calloc(1, sizeof(myeid_private_data_t));
if (!priv)
LOG_FUNC_RETURN(card->ctx, SC_ERROR_OUT_OF_MEMORY);
priv->card_state = SC_FILE_STATUS_CREATION;
card->drv_data = priv;
/* Ensure that the MyEID applet is selected. */
rv = myeid_select_aid(card, &myeid_aid, NULL, &resp_len);
LOG_TEST_GOTO_ERR(card->ctx, rv, "Failed to select MyEID applet.");
/* find out MyEID version */
appletInfoLen = 20;
if (0 > myeid_get_info(card, appletInfo, appletInfoLen))
LOG_TEST_GOTO_ERR(card->ctx, SC_ERROR_INVALID_CARD, "Failed to get MyEID applet information.");
priv->change_counter = appletInfo[19] | appletInfo[18] << 8;
memset(&card_caps, 0, sizeof(myeid_card_caps_t));
card_caps.max_ecc_key_length = 256;
card_caps.max_rsa_key_length = 2048;
if (card->version.fw_major >= 40) {
/* Since 4.0, we can query available algorithms and key sizes.
* Since 3.5.0 RSA up to 2048 and ECC up to 256 are always supported, so we check only max ECC key length. */
if (myeid_get_card_caps(card, &card_caps) != SC_SUCCESS) {
sc_log(card->ctx, "Failed to get card capabilities. Using default max ECC key length 256.");
}
}
flags = SC_ALGORITHM_RSA_RAW | SC_ALGORITHM_RSA_PAD_PKCS1 | SC_ALGORITHM_ONBOARD_KEY_GEN;
flags |= SC_ALGORITHM_RSA_HASH_NONE;
_sc_card_add_rsa_alg(card, 512, flags, 0);
_sc_card_add_rsa_alg(card, 768, flags, 0);
_sc_card_add_rsa_alg(card, 1024, flags, 0);
_sc_card_add_rsa_alg(card, 1536, flags, 0);
_sc_card_add_rsa_alg(card, 2048, flags, 0);
if (card_caps.card_supported_features & MYEID_CARD_CAP_RSA) {
if (card_caps.max_rsa_key_length >= 3072)
_sc_card_add_rsa_alg(card, 3072, flags, 0);
if (card_caps.max_rsa_key_length >= 4096)
_sc_card_add_rsa_alg(card, 4096, flags, 0);
}
/* show ECC algorithms if the applet version of the inserted card supports them */
if (card->version.fw_major >= 35) {
int i;
flags = SC_ALGORITHM_ECDSA_RAW | SC_ALGORITHM_ECDH_CDH_RAW | SC_ALGORITHM_ONBOARD_KEY_GEN;
flags |= SC_ALGORITHM_ECDSA_HASH_NONE | SC_ALGORITHM_ECDSA_HASH_SHA1;
flags |= SC_ALGORITHM_ECDSA_HASH_SHA224 | SC_ALGORITHM_ECDSA_HASH_SHA256;
flags |= SC_ALGORITHM_ECDSA_HASH_SHA384 | SC_ALGORITHM_ECDSA_HASH_SHA512;
ext_flags = SC_ALGORITHM_EXT_EC_NAMEDCURVE | SC_ALGORITHM_EXT_EC_UNCOMPRESES;
for (i=0; ec_curves[i].curve_name != NULL; i++) {
if (card_caps.max_ecc_key_length >= ec_curves[i].size)
_sc_card_add_ec_alg(card, ec_curves[i].size, flags, ext_flags, &ec_curves[i].curve_oid);
}
}
/* show supported symmetric algorithms */
flags = 0;
if (card_caps.card_supported_features & MYEID_CARD_CAP_3DES) {
if (card_caps.max_des_key_length >= 64)
_sc_card_add_symmetric_alg(card, SC_ALGORITHM_DES, 64, flags);
if (card_caps.max_des_key_length >= 128)
_sc_card_add_symmetric_alg(card, SC_ALGORITHM_3DES, 128, flags);
if (card_caps.max_des_key_length >= 192)
_sc_card_add_symmetric_alg(card, SC_ALGORITHM_3DES, 192, flags);
}
if (card_caps.card_supported_features & MYEID_CARD_CAP_AES) {
if (card_caps.max_aes_key_length >= 128)
_sc_card_add_symmetric_alg(card, SC_ALGORITHM_AES, 128, flags);
if (card_caps.max_aes_key_length >= 256)
_sc_card_add_symmetric_alg(card, SC_ALGORITHM_AES, 256, flags);
}
/* State that we have an RNG */
card->caps |= SC_CARD_CAP_RNG | SC_CARD_CAP_ISO7816_PIN_INFO;
if ((card->version.fw_major == 40 && card->version.fw_minor >= 10 )
|| card->version.fw_major >= 41)
card->caps |= SC_CARD_CAP_WRAP_KEY | SC_CARD_CAP_UNWRAP_KEY
| SC_CARD_CAP_ONCARD_SESSION_OBJECTS;
if (card->version.fw_major >= 45)
priv->cap_chaining = 1;
if (card->version.fw_major >= 40)
card->max_recv_size = 256;
else
card->max_recv_size = 255;
card->max_send_size = 255;
rv = SC_SUCCESS;
err:
if (rv < 0) {
free(priv);
card->drv_data = old_drv_data;
}
LOG_FUNC_RETURN(card->ctx, rv);
}
static const struct sc_card_operations *iso_ops = NULL;
static int acl_to_byte(const struct sc_acl_entry *e)
{
switch (e->method) {
case SC_AC_NONE:
return 0x00;
case SC_AC_CHV:
case SC_AC_TERM:
case SC_AC_AUT:
if (e->key_ref == SC_AC_KEY_REF_NONE)
return 0x00;
if (e->key_ref < 1 || e->key_ref > 14)
return 0x00;
return e->key_ref;
case SC_AC_NEVER:
return 0x0F;
}
return 0x00;
}
static void add_acl_entry(struct sc_file *file, int op, u8 byte)
{
unsigned int method, key_ref = SC_AC_KEY_REF_NONE;
switch (byte)
{
case 0:
method = SC_AC_NONE;
break;
case 15:
method = SC_AC_NEVER;
break;
default:
method = SC_AC_CHV;
key_ref = byte;
break;
}
sc_file_add_acl_entry(file, op, method, key_ref);
}
static void parse_sec_attr(struct sc_file *file, const u8 *buf, size_t len)
{
int i;
const int df_ops[4] =
{ SC_AC_OP_CREATE, SC_AC_OP_CREATE, SC_AC_OP_DELETE, -1 };
const int ef_ops[4] =
{ SC_AC_OP_READ, SC_AC_OP_UPDATE, SC_AC_OP_DELETE, -1 };
const int key_ops[4] =
{ SC_AC_OP_CRYPTO, SC_AC_OP_UPDATE, SC_AC_OP_DELETE, SC_AC_OP_GENERATE };
const int *ops;
if (len < 2)
return;
switch (file->type) {
case SC_FILE_TYPE_WORKING_EF:
ops = ef_ops;
break;
case SC_FILE_TYPE_INTERNAL_EF:
ops = key_ops;
break;
case SC_FILE_TYPE_DF:
ops = df_ops;
break;
default:
ops = key_ops;
break;
}
for (i = 0; i < 4; i++)
{
if (ops[i] == -1)
continue;
if ((i & 1) == 0)
add_acl_entry(file, ops[i], (u8)(buf[i / 2] >> 4));
else
add_acl_entry(file, ops[i], (u8)(buf[i / 2] & 0x0F));
}
}
static int myeid_select_file(struct sc_card *card, const struct sc_path *in_path,
struct sc_file **file)
{
int r;
LOG_FUNC_CALLED(card->ctx);
r = iso_ops->select_file(card, in_path, file);
if (r == 0 && file != NULL && *file != NULL)
parse_sec_attr(*file, (*file)->sec_attr, (*file)->sec_attr_len);
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_list_files(struct sc_card *card, u8 *buf, size_t buflen)
{
struct sc_apdu apdu;
int r;
LOG_FUNC_CALLED(card->ctx);
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0xCA, 0x01, 0xA1);
apdu.resp = buf;
apdu.resplen = buflen;
apdu.le = buflen > 256 ? 256 : buflen;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
if (apdu.resplen == 0)
return sc_check_sw(card, apdu.sw1, apdu.sw2);
return apdu.resplen;
}
static int myeid_process_fci(struct sc_card *card, struct sc_file *file,
const u8 *buf, size_t buflen)
{
myeid_private_data_t *priv = (myeid_private_data_t *) card->drv_data;
size_t taglen = 0;
const u8 *tag = NULL;
int r;
LOG_FUNC_CALLED(card->ctx);
r = iso_ops->process_fci(card, file, buf, buflen);
if (r < 0)
LOG_FUNC_RETURN(card->ctx, r);
if(file->type == SC_FILE_EF_UNKNOWN)
{
tag = sc_asn1_find_tag(NULL, buf, buflen, 0x82, &taglen);
if (tag != NULL && taglen > 0 && *tag == 17)
{
file->type = SC_FILE_TYPE_INTERNAL_EF;
}
}
if(file->sec_attr_len >= 3)
{
sc_log(card->ctx, "id (%X) sec_attr (%X %X %X)", file->id,
file->sec_attr[0],file->sec_attr[1],file->sec_attr[2]);
}
tag = sc_asn1_find_tag(NULL, buf, buflen, 0x8A, &taglen);
if (tag != NULL && taglen > 0)
{
if(tag[0] == MYEID_STATE_CREATION) {
file->status = SC_FILE_STATUS_CREATION;
sc_log(card->ctx, "File id (%X) status SC_FILE_STATUS_CREATION (0x%X)",
file->id, tag[0]);
}
else if(tag[0] == MYEID_STATE_ACTIVATED) {
file->status = SC_FILE_STATUS_ACTIVATED;
sc_log(card->ctx, "File id (%X) status SC_FILE_STATUS_ACTIVATED (0x%X)",
file->id, tag[0]);
}
priv->card_state = file->status;
}
LOG_FUNC_RETURN(card->ctx, 0);
}
static int encode_file_structure(sc_card_t *card, const sc_file_t *file,
u8 *buf, size_t *outlen)
{
const sc_acl_entry_t *read, *update, *delete, *generate;
size_t i;
LOG_FUNC_CALLED(card->ctx);
if (!buf || !outlen || *outlen < 45)
LOG_FUNC_RETURN(card->ctx, SC_ERROR_INTERNAL);
/* PrivateKey
* 0E0000019 6217 81020400 820111 83024B01 8603000000 85028000 8A0100 RESULT 6984
* 6217 81020400 820111 83024B01 8603000000 85021000 8A0100 */
memset(buf, 0x0, *outlen);
buf[0] = 0x62;
buf[1] = 0x17;
/* File size */
buf[2] = (SC_FILE_TYPE_WORKING_EF == file->type ? 0x80 : 0x81);
buf[3] = 0x02;
buf[4] = (file->size >> 8) & 0xFF;
buf[5] = file->size & 0xFF;
/* File Description tag */
buf[6] = 0x82;
buf[7] = 0x01;
buf[8] = 0x01;
/* File Identifier tag */
buf[9] = 0x83;
buf[10] = 0x02;
buf[11] = (file->id >> 8) & 0xFF;
buf[12] = file->id & 0xFF;
/* Security Attributes Tag */
buf[13] = 0x86;
buf[14] = 0x03;
buf[15] = 0xFF;
buf[16] = 0xFF;
buf[17] = 0xFF;
if (file->sec_attr_len == 3 && file->sec_attr) {
buf[15] = file->sec_attr[0];
buf[16] = file->sec_attr[1];
buf[17] = file->sec_attr[2];
sc_log(card->ctx, "id (%X), sec_attr %X %X %X", file->id,
file->sec_attr[0],file->sec_attr[1],file->sec_attr[2]);
}
else {
delete = sc_file_get_acl_entry(file, SC_AC_OP_DELETE);
sc_log(card->ctx, "id (%X), type (%X)", file->id, file->type);
switch (file->type) {
case SC_FILE_TYPE_WORKING_EF:
read = sc_file_get_acl_entry(file, SC_AC_OP_READ);
update = sc_file_get_acl_entry(file, SC_AC_OP_UPDATE);
buf[15] = (acl_to_byte(read) << 4) | acl_to_byte(update);
buf[16] = (acl_to_byte(delete)<< 4) | 0x0F;
break;
case SC_FILE_TYPE_INTERNAL_EF:
read = sc_file_get_acl_entry(file, SC_AC_OP_CRYPTO);
update = sc_file_get_acl_entry(file, SC_AC_OP_UPDATE);
generate = sc_file_get_acl_entry(file, SC_AC_OP_GENERATE);
buf[15] = (acl_to_byte(read) << 4) | acl_to_byte(update);
buf[16] = (acl_to_byte(delete)<< 4) | acl_to_byte(generate);
break;
case SC_FILE_TYPE_DF:
update = sc_file_get_acl_entry(file, SC_AC_OP_CREATE);
buf[15] = (acl_to_byte(update) << 4) | acl_to_byte(update);
buf[16] = (acl_to_byte(delete) << 4) | 0x0F;
break;
default:
break;
}
}
/* Proprietary Information */
buf[18] = 0x85;
buf[19] = 0x02;
if (file->prop_attr_len == 2 && file->prop_attr != NULL)
memcpy(&buf[20], file->prop_attr, 2);
else
{
buf[20] = 0x00;
buf[21] = 0x00;
}
/* Life Cycle Status tag */
buf[22] = 0x8A;
buf[23] = 0x01;
buf[24] = 0x0; /* RFU */
switch (file->type)
{
case SC_FILE_TYPE_WORKING_EF:
break;
case SC_FILE_TYPE_INTERNAL_EF:
buf[8] = file->ef_structure; /* RSA or EC */
break;
case SC_FILE_TYPE_DF:
buf[8] = 0x38;
if(file->namelen > 0 && file->namelen <= 16)
{
buf[25] = 0x84;
buf[26] = (u8)file->namelen;
for(i=0;i < file->namelen;i++)
buf[i + 27] = file->name[i];
buf[1] = 27 + file->namelen;
}
break;
default:
sc_log(card->ctx, "Unknown file type\n");
return SC_ERROR_INVALID_ARGUMENTS;
}
*outlen = buf[1]+2;
LOG_FUNC_RETURN(card->ctx, SC_SUCCESS);
}
static int myeid_create_file(struct sc_card *card, struct sc_file *file)
{
sc_apdu_t apdu;
u8 sbuf[45];
size_t buflen = sizeof sbuf;
int r;
LOG_FUNC_CALLED(card->ctx);
r = encode_file_structure(card, file, sbuf, &buflen);
if (r)
LOG_FUNC_RETURN(card->ctx, r);
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xE0, 0x00, 0x00);
apdu.data = sbuf;
apdu.datalen = buflen;
apdu.lc = buflen;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
if (apdu.sw1 == 0x6A && apdu.sw2 == 0x89)
LOG_FUNC_RETURN(card->ctx, SC_ERROR_FILE_ALREADY_EXISTS);
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_delete_file(struct sc_card *card, const struct sc_path *path)
{
int r;
struct sc_apdu apdu;
LOG_FUNC_CALLED(card->ctx);
if (path->type != SC_PATH_TYPE_FILE_ID && path->len != 2)
{
sc_log(card->ctx, "File type has to be SC_PATH_TYPE_FILE_ID\n");
LOG_FUNC_RETURN(card->ctx, SC_ERROR_INVALID_ARGUMENTS);
}
r = sc_select_file(card, path, NULL);
LOG_TEST_RET(card->ctx, r, "Unable to select file to be deleted");
sc_format_apdu(card, &apdu, SC_APDU_CASE_1, 0xE4, 0x00, 0x00);
apdu.cla = 0xA0;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
LOG_FUNC_RETURN(card->ctx, sc_check_sw(card, apdu.sw1, apdu.sw2));
}
static int myeid_pin_cmd(sc_card_t *card, struct sc_pin_cmd_data *data,
int *tries_left)
{
myeid_private_data_t *priv = (myeid_private_data_t *) card->drv_data;
LOG_FUNC_CALLED(card->ctx);
sc_log(card->ctx, "ref (%d), pin1 len(%d), pin2 len (%d)\n",
data->pin_reference, data->pin1.len, data->pin2.len);
if(data->pin1.len > 8 || data->pin2.len > 8)
LOG_FUNC_RETURN(card->ctx, SC_ERROR_INVALID_PIN_LENGTH);
data->pin1.pad_length = data->pin2.pad_length = 8;
data->pin1.pad_char = data->pin2.pad_char = 0xFF;
if (data->cmd == SC_PIN_CMD_VERIFY && priv->card_state == SC_FILE_STATUS_CREATION) {
sc_log(card->ctx, "Card in creation state, no need to verify");
return SC_SUCCESS;
}
LOG_FUNC_RETURN(card->ctx, iso_ops->pin_cmd(card, data, tries_left));
}
static int myeid_set_security_env_rsa(sc_card_t *card, const sc_security_env_t *env,
int se_num)
{
sc_apdu_t apdu;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
u8 *p;
int r;
size_t i;
sc_path_t *target_file;
assert(card != NULL && env != NULL);
LOG_FUNC_CALLED(card->ctx);
if (env->flags & SC_SEC_ENV_KEY_REF_SYMMETRIC)
{
sc_log(card->ctx, "symmetric keyref not supported.\n");
return SC_ERROR_NOT_SUPPORTED;
}
if (se_num > 0)
{
sc_log(card->ctx, "restore security environment not supported.\n");
return SC_ERROR_NOT_SUPPORTED;
}
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x22, 0, 0);
switch (env->operation)
{
case SC_SEC_OPERATION_DECIPHER:
apdu.p1 = 0x41;
apdu.p2 = 0xB8;
break;
case SC_SEC_OPERATION_SIGN:
apdu.p1 = 0x41;
apdu.p2 = 0xB6;
break;
case SC_SEC_OPERATION_UNWRAP:
apdu.p1 = 0x41;
apdu.p2 = 0xB8;
break;
case SC_SEC_OPERATION_WRAP:
apdu.p1 = 0x81;
apdu.p2 = 0xB8;
break;
default:
return SC_ERROR_INVALID_ARGUMENTS;
}
apdu.le = 0;
p = sbuf;
if (env->flags & SC_SEC_ENV_ALG_REF_PRESENT)
{
*p++ = 0x80; /* algorithm reference */
*p++ = 0x01;
*p++ = env->algorithm_ref & 0xFF;
}
if (env->flags & SC_SEC_ENV_FILE_REF_PRESENT)
{
*p++ = 0x81;
*p++ = 2;
memcpy(p, env->file_ref.value, 2);
p += 2;
}
if (env->flags & SC_SEC_ENV_KEY_REF_PRESENT && env->operation != SC_SEC_OPERATION_UNWRAP &&
env->operation != SC_SEC_OPERATION_WRAP)
{
*p++ = 0x84;
*p++ = 1;
*p++ = 0;
}
for (i = 0; i < SC_SEC_ENV_MAX_PARAMS; i++)
if (env->params[i].param_type == SC_SEC_ENV_PARAM_TARGET_FILE) {
target_file = (sc_path_t*) env->params[i].value;
if (env->params[i].value_len < sizeof(sc_path_t) || target_file->len != 2) {
sc_log(card->ctx, "wrong length of target file reference.\n");
return SC_ERROR_WRONG_LENGTH;
}
*p++ = 0x83;
*p++ = 2;
memcpy(p, target_file->value, 2);
p+= 2;
break;
}
if (env->operation == SC_SEC_OPERATION_UNWRAP || env->operation == SC_SEC_OPERATION_WRAP)
{
/* add IV if present */
for (i = 0; i < SC_SEC_ENV_MAX_PARAMS; i++)
if (env->params[i].param_type == SC_SEC_ENV_PARAM_IV) {
*p++ = 0x87;
*p++ = (unsigned char) env->params[i].value_len;
if (p + env->params[i].value_len >= sbuf + SC_MAX_APDU_BUFFER_SIZE) {
sc_log(card->ctx, "IV too long.\n");
return SC_ERROR_WRONG_LENGTH;
}
memcpy(p, env->params[i].value, env->params[i].value_len);
p+=(unsigned char) env->params[i].value_len;
break;
}
}
r = p - sbuf;
apdu.lc = r;
apdu.datalen = r;
apdu.data = sbuf;
apdu.resplen = 0;
if (apdu.datalen != 0)
{
r = sc_transmit_apdu(card, &apdu);
if (r)
{
sc_log(card->ctx,
"%s: APDU transmit failed", sc_strerror(r));
goto err;
}
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
if (r)
{
sc_log(card->ctx,
"%s: Card returned error", sc_strerror(r));
goto err;
}
}
err:
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_set_security_env_ec(sc_card_t *card, const sc_security_env_t *env,
int se_num)
{
sc_apdu_t apdu;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
u8 *p;
int r;
assert(card != NULL && env != NULL);
LOG_FUNC_CALLED(card->ctx);
if (env->flags & SC_SEC_ENV_KEY_REF_SYMMETRIC)
{
sc_log(card->ctx, "symmetric keyref not supported.");
return SC_ERROR_NOT_SUPPORTED;
}
if (se_num > 0)
{
sc_log(card->ctx, "restore security environment not supported.");
return SC_ERROR_NOT_SUPPORTED;
}
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x22, 0, 0);
switch (env->operation)
{
case SC_SEC_OPERATION_DECIPHER:
sc_log(card->ctx, "Decipher operation is not supported with EC keys.");
return SC_ERROR_NOT_SUPPORTED;
break;
case SC_SEC_OPERATION_SIGN:
apdu.p1 = 0x41;
apdu.p2 = 0xB6;
break;
case SC_SEC_OPERATION_DERIVE:
apdu.p1 = 0x41;
apdu.p2 = 0xA4;
break;
default:
return SC_ERROR_INVALID_ARGUMENTS;
}
apdu.le = 0;
p = sbuf;
if (env->flags & SC_SEC_ENV_ALG_REF_PRESENT)
{
*p++ = 0x80; /* algorithm reference */
*p++ = 0x01;
*p++ = env->algorithm_ref & 0xFF;
}
if (env->flags & SC_SEC_ENV_FILE_REF_PRESENT)
{
*p++ = 0x81;
*p++ = 0x02;
memcpy(p, env->file_ref.value, 2);
p += 2;
}
if (env->flags & SC_SEC_ENV_KEY_REF_PRESENT)
{
*p++ = 0x84;
*p++ = 1;
*p++ = 0;
}
r = p - sbuf;
apdu.lc = r;
apdu.datalen = r;
apdu.data = sbuf;
apdu.resplen = 0;
if (apdu.datalen != 0)
{
r = sc_transmit_apdu(card, &apdu);
if (r)
{
sc_log(card->ctx,
"%s: APDU transmit failed", sc_strerror(r));
goto err;
}
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
if (r)
{
sc_log(card->ctx,
"%s: Card returned error", sc_strerror(r));
goto err;
}
}
err:
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_set_security_env(struct sc_card *card,
const struct sc_security_env *env, int se_num)
{
struct sc_context *ctx = card->ctx;
myeid_private_data_t* priv;
LOG_FUNC_CALLED(ctx);
priv = (myeid_private_data_t*) card->drv_data;
/* store security environment to differentiate between ECDH and RSA in decipher - Hannu*/
priv->sec_env = env;
if (env->flags & SC_SEC_ENV_ALG_PRESENT)
{
sc_security_env_t tmp;
tmp = *env;
tmp.flags &= ~SC_SEC_ENV_ALG_PRESENT;
tmp.flags |= SC_SEC_ENV_ALG_REF_PRESENT;
if (tmp.algorithm == SC_ALGORITHM_RSA)
{
if (tmp.operation == SC_SEC_OPERATION_UNWRAP || tmp.operation == SC_SEC_OPERATION_WRAP)
{
tmp.algorithm_ref = 0x0A;
}
else
{
tmp.algorithm_ref = 0x00;
/* potential FIXME: return an error, if an unsupported
* pad or hash was requested, although this shouldn't happen */
if (env->algorithm_flags & SC_ALGORITHM_RSA_PAD_PKCS1)
tmp.algorithm_ref = 0x02;
if (tmp.algorithm_flags & SC_ALGORITHM_RSA_HASH_SHA1)
tmp.algorithm_ref |= 0x10;
}
return myeid_set_security_env_rsa(card, &tmp, se_num);
}
else if (tmp.algorithm == SC_ALGORITHM_EC)
{
tmp.algorithm_ref = 0x04;
tmp.algorithm_flags = 0;
return myeid_set_security_env_ec(card, &tmp, se_num);
}
else if (tmp.algorithm == SC_ALGORITHM_AES)
{
if (tmp.operation == SC_SEC_OPERATION_UNWRAP || tmp.operation == SC_SEC_OPERATION_WRAP)
{
tmp.algorithm_ref = 0x0A;
}
else
{
tmp.algorithm_ref = 0x00;
}
if ((tmp.algorithm_flags & SC_ALGORITHM_AES_CBC_PAD) == SC_ALGORITHM_AES_CBC_PAD)
tmp.algorithm_ref |= 0x80; /* set PKCS#7 padding */
/* from this point, there's no difference to RSA SE */
return myeid_set_security_env_rsa(card, &tmp, se_num);
}
else
{
sc_log(ctx, "Unsupported algorithm.");
return SC_ERROR_NOT_SUPPORTED;
}
}
return myeid_set_security_env_rsa(card, env, se_num);
}
static int
myeid_convert_ec_signature(struct sc_context *ctx, size_t s_len, unsigned char *data, size_t datalen)
{
unsigned char *buf;
size_t buflen;
int r;
size_t len_size = 1;
size_t sig_len = 0;
assert(data && datalen && datalen > 3);
/*
* When validating the signature data, we have to consider that length of the signature
* can be encoded in either one or two bytes depending on key size. With 521 bit keys
* length of the structure takes two bytes.
*/
if (*data != 0x30)
return SC_ERROR_INVALID_DATA;
if ((*(data + 1) & 0x80) == 0x80)
len_size += *(data + 1) & 0x7F;
if (len_size == 1)
sig_len = *(data + 1);
else if (len_size == 2)
sig_len = *(data + 2);
else if (len_size == 3)
{
sig_len = *(data + 2) | (*data + 3) << 8;
}
else
return SC_ERROR_INVALID_DATA;
if (*(data + 1 + len_size) != 0x02) /* Verify that it is an INTEGER */
if (sig_len != (datalen - len_size - 1)) /* validate size of the DER structure */
return SC_ERROR_INVALID_DATA;
/* test&fail early */
buflen = (s_len + 7)/8*2;
if (buflen > datalen)
LOG_FUNC_RETURN(ctx, SC_ERROR_INVALID_DATA);
buf = calloc(1, buflen);
if (!buf)
LOG_FUNC_RETURN(ctx, SC_ERROR_OUT_OF_MEMORY);
r = sc_asn1_sig_value_sequence_to_rs(ctx, data, datalen, buf, buflen);
if (r < 0) {
free(buf);
sc_log(ctx, "Failed to convert Sig-Value to the raw RS format");
return r;
}
memmove(data, buf, buflen);
free(buf);
return buflen;
}
/* MyEID cards before version 4.5 do not support RAW RSA signature for 2048 bit RSA keys.
* (Source: MyEID reference manual 2.1.4)
*
* This function uses decipher operation for calculating RAW 2048 bit signature. */
static int
myeid_compute_raw_2048_signature(struct sc_card *card, const u8 * data, size_t datalen,
u8 * out, size_t outlen)
{
int r;
struct sc_context *ctx;
struct myeid_private_data *priv;
struct sc_apdu apdu;
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
sc_security_env_t env;
ctx = card->ctx;
LOG_FUNC_CALLED(ctx);
priv = (myeid_private_data_t *) card->drv_data;
/* security env change - use DECIPHER operation */
memcpy(&env, priv->sec_env, sizeof(sc_security_env_t));
env.flags |= SC_SEC_ENV_ALG_REF_PRESENT;
env.flags |= SC_SEC_ENV_FILE_REF_PRESENT;
env.flags |= SC_SEC_ENV_KEY_REF_PRESENT;
env.operation = SC_SEC_OPERATION_DECIPHER;
myeid_set_security_env_rsa(card, &env, 0);
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x2A, 0x80, 0x86);
apdu.resp = rbuf;
apdu.resplen = sizeof(rbuf);
apdu.le = 0; /* there is no response to 1st part of data */
/* prepare 1st part of data */
sbuf[0] = 0x81;
memcpy(sbuf + 1, data, datalen / 2);
apdu.lc = datalen / 2 + 1;
apdu.datalen = apdu.lc;
apdu.data = sbuf;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
if (apdu.sw1 == 0x90 && apdu.sw2 == 0x00) {
/* prepare 2nd part of data */
sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0x2A, 0x80, 0x86);
apdu.resp = rbuf;
apdu.resplen = sizeof(rbuf);
apdu.le = datalen;
sbuf[0] = 0x82;
memcpy(sbuf + 1, data + datalen / 2, datalen / 2);
apdu.lc = datalen / 2 + 1;
apdu.datalen = apdu.lc;
apdu.data = sbuf;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
if (apdu.sw1 == 0x90 && apdu.sw2 == 0x00) {
int len = apdu.resplen > outlen ? outlen : apdu.resplen;
memcpy(out, apdu.resp, len);
LOG_FUNC_RETURN(card->ctx, len);
}
}
LOG_FUNC_RETURN(card->ctx, sc_check_sw(card, apdu.sw1, apdu.sw2));
}
static int
myeid_compute_signature(struct sc_card *card, const u8 * data, size_t datalen,
u8 * out, size_t outlen)
{
struct sc_context *ctx;
struct sc_apdu apdu;
u8 rbuf[MYEID_MAX_EXT_APDU_BUFFER_SIZE];
u8 sbuf[MYEID_MAX_EXT_APDU_BUFFER_SIZE];
struct myeid_private_data* priv;
int r;
size_t field_length = 0;
size_t pad_chars = 0;
assert(card != NULL && data != NULL && out != NULL);
ctx = card->ctx;
LOG_FUNC_CALLED(ctx);
priv = (myeid_private_data_t*) card->drv_data;
sc_log(ctx, "key type %i, key length %i", priv->sec_env->algorithm, priv->sec_env->algorithm_ref);
if (priv->sec_env->algorithm == SC_ALGORITHM_EC ) {
field_length = priv->sec_env->algorithm_ref;
/* pad with zeros if needed */
if (datalen < (field_length + 7) / 8 ) {
pad_chars = ((field_length + 7) / 8) - datalen;
memset(sbuf, 0, pad_chars);
}
}
if ((datalen + pad_chars) > sizeof(sbuf))
LOG_FUNC_RETURN(ctx, SC_ERROR_INVALID_ARGUMENTS);
if (priv->sec_env->algorithm == SC_ALGORITHM_RSA && datalen == 256 && !priv->cap_chaining)
return myeid_compute_raw_2048_signature(card, data, datalen, out, outlen);
/* INS: 0x2A PERFORM SECURITY OPERATION
* P1: 0x9E Resp: Digital Signature
* P2: 0x9A Cmd: Input for Digital Signature */
sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0x2A, 0x9E, 0x9A);
apdu.flags |= SC_APDU_FLAGS_CHAINING;
apdu.resp = rbuf;
apdu.resplen = sizeof(rbuf);
apdu.le = 256;
memcpy(sbuf + pad_chars, data, datalen);
apdu.lc = datalen + pad_chars;
apdu.datalen = datalen + pad_chars;
apdu.data = sbuf;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(ctx, r, "APDU transmit failed");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_TEST_RET(ctx, r, "compute_signature failed");
if (priv->sec_env->algorithm == SC_ALGORITHM_EC) {
r = myeid_convert_ec_signature(ctx, priv->sec_env->algorithm_ref, apdu.resp, apdu.resplen);
LOG_TEST_RET(ctx, r, "compute_signature convert signature failed");
apdu.resplen = r;
}
if (apdu.resplen > outlen)
LOG_FUNC_RETURN(ctx, SC_ERROR_BUFFER_TOO_SMALL);
memcpy(out, apdu.resp, apdu.resplen);
LOG_FUNC_RETURN(ctx, apdu.resplen);
}
/* takes other party's public key as input, performs ECDH key derivation and returns the shared secret in [out]. */
int myeid_ecdh_derive(struct sc_card *card, const u8* pubkey, size_t pubkey_len, u8* out, size_t outlen)
{
/* MyEID uses GENERAL AUTHENTICATE ISO command for ECDH */
struct sc_apdu apdu;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
int r;
size_t ext_len_bytes;
sc_format_apdu(card, &apdu, SC_APDU_CASE_4_SHORT, 0x86, 0x00, 0x00);
apdu.resp = rbuf;
apdu.resplen = sizeof(rbuf);
/* Fill in "Data objects in dynamic authentication template" (tag 0x7C) structure
*
* TODO: encode the structure using OpenSC's ASN1-functions.
*
* Size of the structure depends on key length. With 521 bit keys two bytes are needed for defining length of a point.
*/
sbuf[0] = 0x7C;
ext_len_bytes = 0;
if (pubkey_len > 127)
{
sbuf[1] = 0x81;
sbuf[2] = (u8) (pubkey_len + 3);
sbuf[3] = 0x85;
sbuf[4] = 0x81;
sbuf[5] = (u8) (pubkey_len);
ext_len_bytes = 2;
}
else
{
sbuf[1] = pubkey_len + 2;
sbuf[2] = 0x85;
sbuf[3] = pubkey_len;
}
memcpy(&sbuf[4 + ext_len_bytes], pubkey, pubkey_len);
apdu.lc = pubkey_len + 4 + ext_len_bytes;
apdu.le = pubkey_len / 2;
apdu.datalen = apdu.lc;
apdu.data = sbuf;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed.");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_TEST_RET(card->ctx, r, "ECDH operation failed - GENERAL AUTHENTICATE returned error.");
if (outlen < apdu.resplen)
{
r = SC_ERROR_BUFFER_TOO_SMALL;
LOG_TEST_RET(card->ctx, r, "Buffer too small to hold shared secret.");
}
memcpy(out, rbuf, apdu.resplen);
LOG_FUNC_RETURN(card->ctx, apdu.resplen);
}
static int myeid_transmit_decipher_pi_split(struct sc_card *card, struct sc_apdu *apdu, u8 *sbuf)
{
/* MyEID before 4.5.x does not support APDU chaining. The payload
* is split to two regular APDUs and Padding Indicator field is used to
* describe which slice it is. */
size_t crgram_len = apdu->lc - 1;
size_t crgram_half = crgram_len / 2;
size_t resplen = apdu->resplen;
unsigned char *resp = apdu->resp;
int r;
LOG_FUNC_CALLED(card->ctx);
/* Send 1st part, no response */
apdu->cse = SC_APDU_CASE_3_SHORT;
apdu->data = &sbuf[0];
apdu->datalen = apdu->lc = crgram_half + 1;
apdu->resp = 0;
apdu->resplen = 0;
apdu->le = 0;
sbuf[0] = 0x81; /* Padding Indicator, 0x81 = First half */
r = sc_transmit_apdu(card, apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
if (apdu->sw1 != 0x90 || apdu->sw2 != 0x00)
return 0;
/* Send 2nd part, expect response */
apdu->cse = resplen ? SC_APDU_CASE_4_SHORT : SC_APDU_CASE_3_SHORT;
apdu->data = &sbuf[crgram_half];
apdu->datalen = apdu->lc = crgram_len - crgram_half + 1;
apdu->resp = resp;
apdu->resplen = resplen;
apdu->le = resplen ? MIN(card->max_recv_size, crgram_len) : 0;
sbuf[crgram_half] = 0x82; /* Padding Indicator, 0x82 = Second half */
r = sc_transmit_apdu(card, apdu);
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_transmit_decipher(struct sc_card *card, u8 p1, u8 p2,
const u8 * crgram, size_t crgram_len, u8 * out, size_t outlen)
{
myeid_private_data_t *priv = card->drv_data;
struct sc_apdu apdu;
u8 rbuf[SC_MAX_EXT_APDU_BUFFER_SIZE];
u8 sbuf[SC_MAX_EXT_APDU_BUFFER_SIZE];
int r;
LOG_FUNC_CALLED(card->ctx);
/* INS: 0x2A PERFORM SECURITY OPERATION
* P1: 0x00 Resp: No response (unwrapping)
* P1: 0x80 Resp: Plain value
* P2: 0x84 Cmd: Cryptogram (no padding byte)
* P2: 0x86 Cmd: Padding indicator byte followed by cryptogram */
sc_format_apdu(card, &apdu, p1 ? SC_APDU_CASE_4_SHORT : SC_APDU_CASE_3_SHORT, 0x2A, p1, p2);
if (p2 == 0x86) {
if (crgram_len+1 > sizeof(sbuf))
LOG_FUNC_RETURN(card->ctx, SC_ERROR_INVALID_ARGUMENTS);
sbuf[0] = 0; /* Padding indicator: 0x00 = No further indication */
memcpy(sbuf + 1, crgram, crgram_len);
apdu.data = sbuf;
apdu.datalen = apdu.lc = crgram_len + 1;
} else {
apdu.data = crgram;
apdu.datalen = apdu.lc = crgram_len;
}
if (p1 != 0x00) {
apdu.resp = rbuf;
apdu.resplen = sizeof(rbuf);
apdu.le = MIN(card->max_recv_size, crgram_len);
}
if (p2 == 0x86 && crgram_len == 256 && priv && !priv->cap_chaining) {
r = myeid_transmit_decipher_pi_split(card, &apdu, sbuf);
} else {
apdu.flags |= SC_APDU_FLAGS_CHAINING;
r = sc_transmit_apdu(card, &apdu);
}
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_TEST_RET(card->ctx, r, "DECIPHER returned error");
if (out && outlen) {
outlen = MIN(apdu.resplen, outlen);
memcpy(out, apdu.resp, outlen);
} else {
outlen = 0;
}
LOG_FUNC_RETURN(card->ctx, outlen);
}
static int myeid_decipher(struct sc_card *card, const u8 * crgram,
size_t crgram_len, u8 * out, size_t outlen)
{
int r;
myeid_private_data_t* priv;
LOG_FUNC_CALLED(card->ctx);
assert(card != NULL && crgram != NULL && out != NULL);
priv = (myeid_private_data_t*) card->drv_data;
if (priv->sec_env && priv->sec_env->algorithm == SC_ALGORITHM_EC
&& priv->sec_env->operation == SC_SEC_OPERATION_DERIVE
&& priv->sec_env->algorithm_flags & SC_ALGORITHM_ECDH_CDH_RAW)
{
r = myeid_ecdh_derive(card, crgram, crgram_len, out, outlen);
priv->sec_env = NULL; /* clear after operation */
LOG_FUNC_RETURN(card->ctx, r);
}
r = myeid_transmit_decipher(card, 0x80, 0x86, crgram, crgram_len, out, outlen);
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_wrap_key(struct sc_card *card, u8 *out, size_t outlen)
{
struct sc_context *ctx;
struct sc_apdu apdu;
u8 rbuf[SC_MAX_APDU_BUFFER_SIZE];
int r;
assert(card != NULL);
ctx = card->ctx;
LOG_FUNC_CALLED(ctx);
/* INS: 0x2A PERFORM SECURITY OPERATION
P1: 0x84 Resp: Return a cryptogram
* P2: 0x00 The data field is absent */
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0x2A, 0x84, 0x00);
apdu.resp = rbuf;
apdu.resplen = sizeof(rbuf);
apdu.le = 0;
apdu.lc = 0;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(ctx, r, "APDU transmit failed");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_TEST_RET(ctx, r, "wrap key failed");
if (apdu.resplen <= outlen && out != NULL)
memcpy(out, apdu.resp, apdu.resplen);
LOG_FUNC_RETURN(ctx, apdu.resplen);
}
static int myeid_unwrap_key(struct sc_card *card, const u8 *crgram, size_t crgram_len)
{
myeid_private_data_t* priv;
u8 p2 = 0x86; /* init P2 for asymmetric crypto by default.*/
int r;
if (card == NULL || crgram == NULL)
return SC_ERROR_INVALID_ARGUMENTS;
priv = card->drv_data;
LOG_FUNC_CALLED(card->ctx);
if (crgram_len > MYEID_MAX_RSA_KEY_LEN / 8)
LOG_FUNC_RETURN(card->ctx, SC_ERROR_INVALID_ARGUMENTS);
if (priv && priv->sec_env)
{
if (priv->sec_env->algorithm == SC_ALGORITHM_AES ||
priv->sec_env->algorithm == SC_ALGORITHM_3DES ||
priv->sec_env->algorithm == SC_ALGORITHM_DES)
p2 = 0x84;
}
if (p2 == 0x84 && crgram_len > MYEID_MAX_APDU_DATA_LEN)
LOG_TEST_RET(card->ctx, SC_ERROR_WRONG_LENGTH, "Unwrapping symmetric data longer that 255 bytes is not supported\n");
/* INS: 0x2A PERFORM SECURITY OPERATION
* P1: 0x00 Do not expect response - the deciphered data will be placed into the target key EF.
* P2: 0x86 Cmd: Padding indicator byte followed by cryptogram
* P2: 0x84 Cmd: AES/3DES Cryptogram (plain value encoded in BER-TLV DO, but not including SM DOs) */
r = myeid_transmit_decipher(card, 0x00, p2, crgram, crgram_len, 0, 0);
LOG_FUNC_RETURN(card->ctx, r);
}
/* Write internal data, e.g. add default pin-records to pin */
static int myeid_putdata(struct sc_card *card, struct sc_cardctl_myeid_data_obj* data_obj)
{
int r;
struct sc_apdu apdu;
LOG_FUNC_CALLED(card->ctx);
memset(&apdu, 0, sizeof(apdu));
apdu.cse = SC_APDU_CASE_3_SHORT;
apdu.cla = 0x00;
apdu.ins = 0xDA;
apdu.p1 = data_obj->P1;
apdu.p2 = data_obj->P2;
apdu.lc = data_obj->DataLen;
apdu.datalen = data_obj->DataLen;
apdu.data = data_obj->Data;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_TEST_RET(card->ctx, r, "PUT_DATA returned error");
LOG_FUNC_RETURN(card->ctx, r);
}
/* Read internal data, e.g. get RSA public key */
static int myeid_getdata(struct sc_card *card, struct sc_cardctl_myeid_data_obj* data_obj)
{
int r;
struct sc_apdu apdu;
LOG_FUNC_CALLED(card->ctx);
memset(&apdu, 0, sizeof(apdu));
apdu.cse = SC_APDU_CASE_2_SHORT;
apdu.cla = 0x00;
apdu.ins = 0xCA; /* GET DATA */
apdu.p1 = data_obj->P1;
apdu.p2 = data_obj->P2;
apdu.lc = 0;
apdu.datalen = 0;
apdu.data = data_obj->Data;
apdu.le = card->max_recv_size;
apdu.resp = data_obj->Data;
apdu.resplen = data_obj->DataLen;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_TEST_RET(card->ctx, r, "GET_DATA returned error");
if (apdu.resplen > data_obj->DataLen)
r = SC_ERROR_WRONG_LENGTH;
else
data_obj->DataLen = apdu.resplen;
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_loadkey(sc_card_t *card, unsigned mode, u8* value, int value_len)
{
myeid_private_data_t *priv = (myeid_private_data_t *) card->drv_data;
sc_apdu_t apdu;
u8 sbuf[MYEID_MAX_EXT_APDU_BUFFER_SIZE];
int r;
LOG_FUNC_CALLED(card->ctx);
if (value_len == 0 || value == NULL)
return 0;
if (mode == LOAD_KEY_MODULUS && value_len == 256 && !priv->cap_chaining)
{
mode = 0x88;
memset(&apdu, 0, sizeof(apdu));
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xDA, 0x01, mode);
apdu.cla = 0x00;
apdu.data = value;
apdu.datalen = 128;
apdu.lc = 128;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_TEST_RET(card->ctx, r, "LOAD KEY returned error");
mode = 0x89;
value += 128;
value_len -= 128;
}
else if ((mode & 0xff00) == 0 && mode != LOAD_KEY_PUBLIC_EXPONENT &&
value[0] != 0x00)
{
/* RSA components needing leading zero byte */
sbuf[0] = 0x0;
memcpy(&sbuf[1], value, value_len);
value = sbuf;
value_len ++;
}
memset(&apdu, 0, sizeof(apdu));
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0xDA, 0x01, mode & 0xFF);
apdu.flags = SC_APDU_FLAGS_CHAINING;
apdu.cla = 0x00;
apdu.data = value;
apdu.datalen = value_len;
apdu.lc = value_len;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_FUNC_RETURN(card->ctx, r);
}
/* Generate or store a key */
static int myeid_generate_store_key(struct sc_card *card,
struct sc_cardctl_myeid_gen_store_key_info *data)
{
struct sc_apdu apdu;
u8 sbuf[SC_MAX_APDU_BUFFER_SIZE];
int r=0,len;
LOG_FUNC_CALLED(card->ctx);
/* Setup key-generation parameters */
if (data->op_type == OP_TYPE_GENERATE)
{
len = 0;
memset(&apdu, 0, sizeof(apdu));
if(data->key_type == SC_CARDCTL_MYEID_KEY_RSA)
{
sbuf[len++] = 0x30;
sbuf[len++] = 0x05;
sbuf[len++] = 0x81;
sbuf[len++] = data->pubexp_len;
memcpy(sbuf + len, data->pubexp, data->pubexp_len);
len += data->pubexp_len;
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x46, 0x00, 0x00);
apdu.data = sbuf;
}
else if(data->key_type == SC_CARDCTL_MYEID_KEY_EC) {
sc_format_apdu(card, &apdu, SC_APDU_CASE_1, 0x46, 0x00, 0x00);
apdu.data = NULL;
apdu.resp = sbuf;
apdu.resplen = 0x00;
apdu.le = 0x00;
}
apdu.cla = 0x00;
apdu.datalen = len;
apdu.lc = len;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_TEST_RET(card->ctx, r, "GENERATE_KEY returned error");
}
else
{
if(data->key_type == SC_CARDCTL_MYEID_KEY_RSA)
{
if((r=myeid_loadkey(card, LOAD_KEY_PRIME_P,
data->primep, data->primep_len)) >= 0 &&
(r=myeid_loadkey(card, LOAD_KEY_PRIME_Q,
data->primeq, data->primeq_len)) >= 0 &&
(r=myeid_loadkey(card, LOAD_KEY_DP1,
data->dp1, data->dp1_len)) >= 0 &&
(r=myeid_loadkey(card, LOAD_KEY_DQ1,
data->dq1, data->dq1_len)) >= 0 &&
(r=myeid_loadkey(card, LOAD_KEY_INVQ,
data->invq, data->invq_len)) >= 0 &&
(r=myeid_loadkey(card, LOAD_KEY_MODULUS,
data->mod, data->key_len_bits)) >= 0 &&
(r=myeid_loadkey(card, LOAD_KEY_PUBLIC_EXPONENT,
data->pubexp, data->pubexp_len)) >= 0)
LOG_FUNC_RETURN(card->ctx, r);
}
else if(data->key_type == SC_CARDCTL_MYEID_KEY_EC) {
if((r = myeid_loadkey(card, LOAD_KEY_EC_PRIVATE, data->d,
data->d_len)) >= 0 &&
(r = myeid_loadkey(card, LOAD_KEY_EC_PUBLIC, data->ecpublic_point,
data->ecpublic_point_len)) >= 0)
LOG_FUNC_RETURN(card->ctx, r);
}
else if(data->key_type == SC_CARDCTL_MYEID_KEY_AES ||
data->key_type == SC_CARDCTL_MYEID_KEY_DES) {
if((r = myeid_loadkey(card, LOAD_KEY_SYMMETRIC, data->d,
data->d_len)) >= 0)
LOG_FUNC_RETURN(card->ctx, r);
}
}
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_activate_card(struct sc_card *card)
{
int r;
u8 sbuf[] ="\xA0\x00\x00\x00\x63\x50\x4B\x43\x53\x2D\x31\x35";
sc_apdu_t apdu;
LOG_FUNC_CALLED(card->ctx);
sc_format_apdu(card, &apdu, SC_APDU_CASE_3_SHORT, 0x44, 0x04, 0x00);
apdu.cla = 0x00;
apdu.data = sbuf;
apdu.datalen = 0x0C;
apdu.lc = 0x0C;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
r = sc_check_sw(card, apdu.sw1, apdu.sw2);
LOG_TEST_RET(card->ctx, r, "ACTIVATE_APPLET returned error");
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_get_info(struct sc_card *card, u8 *rbuf, size_t buflen)
{
sc_apdu_t apdu;
int r;
LOG_FUNC_CALLED(card->ctx);
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0xca, 0x01, 0xA0);
apdu.resp = rbuf;
apdu.resplen = buflen;
apdu.le = buflen;
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
if (apdu.sw1 != 0x90 || apdu.sw2 != 0x00)
return SC_ERROR_INTERNAL;
if (apdu.resplen != 20)
{
sc_log(card->ctx, "Unexpected response to GET DATA (applet info)");
return SC_ERROR_INTERNAL;
}
/* store the applet version */
card->version.fw_major = rbuf[5] * 10 + rbuf[6];
card->version.fw_minor = rbuf[7];
/* add version to name */
snprintf(card_name_buf, sizeof(card_name_buf),
"%s %d.%d.%d", card->name, rbuf[5], rbuf[6], rbuf[7]);
card->name = card_name_buf;
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_get_serialnr(sc_card_t *card, sc_serial_number_t *serial)
{
int r;
u8 rbuf[256];
LOG_FUNC_CALLED(card->ctx);
/* if number cached, get it
if(card->serialnr.value) {
memcpy(serial, &card->serialnr, sizeof(*serial));
LOG_FUNC_RETURN(card->ctx, r);
}*/
/* get number from card */
r = myeid_get_info(card, rbuf, sizeof(rbuf));
LOG_TEST_RET(card->ctx, r, "Get applet info failed");
/* cache serial number */
memcpy(card->serialnr.value, &rbuf[8], 10);
card->serialnr.len = 10;
/* copy and return serial number */
memcpy(serial, &card->serialnr, sizeof(*serial));
LOG_FUNC_RETURN(card->ctx, r);
}
/*
Get information of features that the card supports. MyEID 4.x cards are available on different
hardware and maximum key sizes cannot be determined simply from the version number anymore.
*/
static int myeid_get_card_caps(struct sc_card *card, myeid_card_caps_t* card_caps)
{
sc_apdu_t apdu;
int r;
unsigned char rbuf[SC_MAX_APDU_BUFFER_SIZE];
LOG_FUNC_CALLED(card->ctx);
sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0xca, 0x01, 0xAA);
apdu.resp = rbuf;
apdu.resplen = sizeof(myeid_card_caps_t);
apdu.le = sizeof(myeid_card_caps_t);
r = sc_transmit_apdu(card, &apdu);
LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
if (apdu.sw1 != 0x90 || apdu.sw2 != 0x00)
return SC_ERROR_INTERNAL;
if (apdu.resplen < 11) {
sc_log(card->ctx, "Unexpected response to GET DATA (MyEIC card capabilities)");
return SC_ERROR_INTERNAL;
}
card_caps->card_caps_ver = rbuf[0];
/* the card returns big endian values */
card_caps->card_supported_features = (unsigned short) rbuf[1] << 8 | rbuf[2];
card_caps->max_rsa_key_length = (unsigned short) rbuf[3] << 8 | rbuf[4];
card_caps->max_des_key_length = (unsigned short) rbuf[5] << 8 | rbuf[6];
card_caps->max_aes_key_length = (unsigned short) rbuf[7] << 8 | rbuf[8];
card_caps->max_ecc_key_length = (unsigned short) rbuf[9] << 8 | rbuf[10];
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_card_ctl(struct sc_card *card, unsigned long cmd, void *ptr)
{
int r = SC_ERROR_NOT_SUPPORTED;
LOG_FUNC_CALLED(card->ctx);
switch(cmd) {
case SC_CARDCTL_MYEID_PUTDATA:
r = myeid_putdata(card,
(struct sc_cardctl_myeid_data_obj*) ptr);
break;
case SC_CARDCTL_MYEID_GETDATA:
r = myeid_getdata(card,
(struct sc_cardctl_myeid_data_obj*) ptr);
break;
case SC_CARDCTL_MYEID_GENERATE_STORE_KEY:
r = myeid_generate_store_key(card,
(struct sc_cardctl_myeid_gen_store_key_info *) ptr);
break;
case SC_CARDCTL_MYEID_ACTIVATE_CARD:
r = myeid_activate_card(card);
break;
case SC_CARDCTL_GET_SERIALNR:
r = myeid_get_serialnr(card, (sc_serial_number_t *)ptr);
break;
case SC_CARDCTL_GET_DEFAULT_KEY:
case SC_CARDCTL_LIFECYCLE_SET:
case SC_CARDCTL_LIFECYCLE_GET:
break;
}
LOG_FUNC_RETURN(card->ctx, r);
}
static int myeid_finish(sc_card_t * card)
{
struct myeid_private_data *priv = (struct myeid_private_data *) card->drv_data;
free(priv);
return SC_SUCCESS;
}
static struct sc_card_driver * sc_get_driver(void)
{
struct sc_card_driver *iso_drv = sc_get_iso7816_driver();
if (iso_ops == NULL)
iso_ops = iso_drv->ops;
myeid_ops = *iso_drv->ops;
myeid_ops.match_card = myeid_match_card;
myeid_ops.init = myeid_init;
myeid_ops.finish = myeid_finish;
/* no record oriented file services */
myeid_ops.read_record = NULL;
myeid_ops.write_record = NULL;
myeid_ops.append_record = NULL;
myeid_ops.update_record = NULL;
myeid_ops.select_file = myeid_select_file;
myeid_ops.get_response = iso_ops->get_response;
myeid_ops.create_file = myeid_create_file;
myeid_ops.delete_file = myeid_delete_file;
myeid_ops.list_files = myeid_list_files;
myeid_ops.set_security_env = myeid_set_security_env;
myeid_ops.compute_signature = myeid_compute_signature;
myeid_ops.decipher = myeid_decipher;
myeid_ops.process_fci = myeid_process_fci;
myeid_ops.card_ctl = myeid_card_ctl;
myeid_ops.pin_cmd = myeid_pin_cmd;
myeid_ops.wrap = myeid_wrap_key;
myeid_ops.unwrap = myeid_unwrap_key;
return &myeid_drv;
}
struct sc_card_driver * sc_get_myeid_driver(void)
{
return sc_get_driver();
}
Reference in New Issue View Git Blame Copy Permalink