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IASECC/CPX: opensc-explorer asn1 of EF.ATR objects 

Workaround the parsing of EF.ATR objects, for instance:

./opensc-explorer -r 0

OpenSC [3F00]> cat 2F01
00000000: 80 43 01 B8 46 04 04 B0 EC C1 47 03 94 01 80 4F .C..F.....G....O
00000010: 08 80 25 00 00 01 FF 01 00 E0 10 02 02 01 04 02 ..%.............
00000020: 02 01 04 02 02 01 00 02 02 01 00 78 08 06 06 2B ...........x...+
00000030: 81 22 F8 78 02 82 02 90 00                      .".x.....

OpenSC [3F00]> info 2F01
Working Elementary File  ID 2F01, SFI E8

File path:               3F00/2F01
File size:               57 bytes
EF structure:            Transparent
ACL for READ:            NONE
ACL for UPDATE:          SecOx45
ACL for DELETE:          SecOx45
ACL for WRITE:           N/A
ACL for REHABILITATE:    N/A
ACL for INVALIDATE:      N/A
ACL for LIST FILES:      N/A
ACL for CRYPTO:          N/A
Type attributes:         01
Life cycle:              Operational, activated

In order to avoid adding an offset of 1 for such objects on some
  OpenSC [3F00]> asn1 2F01 1
specific cards, then, we get:

OpenSC [3F00]> asn1 2F01
80 Context 0  (0 bytes)
43 Application 3  (1 byte): decode error: B8 .
46 Application 6  (4 bytes): decode error: 04 B0 EC C1 ....
47 Application 7  (3 bytes): 94 01 80 ...
4F Application 15 (8 bytes): 80 25 00 00 01 FF 01 00 .%......
E0 Private 0  (16 bytes)
   02 INTEGER (2 bytes): 260
   02 INTEGER (2 bytes): 260
   02 INTEGER (2 bytes): 256
   02 INTEGER (2 bytes): 256
78 Application 24 (8 bytes)
   06 OBJECT IDENTIFIER (6 bytes):  1.3.162.15480.2
82 Context 2  (2 bytes): 36864: 90 00 ..
OpenSC [3F00]>

which means:
 ef-atr.c:49:sc_parse_ef_atr_content: EF.ATR: card service 0xB8
 ef-atr.c:59:sc_parse_ef_atr_content: EF.ATR: Pre-Issuing data '04B0ECC1'
 ef-atr.c:67:sc_parse_ef_atr_content: EF.ATR: DF selection 94, unit_size 1, card caps 80
 ef-atr.c:95:sc_parse_ef_atr_content: EF.ATR: AID '8025000001FF0100'
 ef-atr.c:106:sc_parse_ef_atr_content: EF.ATR: Issuer data '02020104020201040202010002020100'
 ef-atr.c:111:sc_parse_ef_atr_content: EF.ATR: DER encoded OID 06062B8122F87802
 ef-atr.c:114:sc_parse_ef_atr_content: EF.ATR: OID 2B8122F87802
 ef-atr.c:123:sc_parse_ef_atr_content: EF.ATR: status word 0x9000

Fix: issue #2220
This commit is contained in:
Vincent JARDIN 2021-02-03 21:50:23 +00:00 committed by Frank Morgner
parent fd83e885f7
commit c581d1b26f
1 changed files with 5 additions and 0 deletions
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5
src/tools/opensc-explorer.c
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@ -48,6 +48,7 @@
#include "libopensc/cards.h"
#include "libopensc/log.h"
#include "libopensc/internal.h"
#include "libopensc/iso7816.h"
#include "common/compat_strlcpy.h"
#include <getopt.h>
#include "util.h"
@ -2176,6 +2177,10 @@ static int do_asn1(int argc, char **argv)
}
}
/* workaround when the issuer of a card does prefix the EF.ATR payload with 0x80 */
if ((buf[0] == ISO7816_II_CATEGORY_TLV) &&
(memcmp(path.value, "\x3f\x00\x2f\x01", 4) == 0))
offs++;
/* if offset does not exceed the length read from file/record, ... */
if (offs <= (unsigned int) r) {
/* ... perform the ASN.1 dump */