CJCOP3
3B
DC
??
FF
81
91
FE
1F
C3
80
73
C8
21
13
66
??
??
??
??
??
??
??
mask: FFFF00FFFFFFFFFFFFFFFFFFFFFFFF00000000000000
1
Total reports
100%
Success rate
2018
First report
2018-08-18
Last report
ATR Analysis
ISO 7816-3 · local
Full analysis on smartcard-atr.apdu.fr ↗
Convention
direct
Protocol
T=1
T=15
Guard time (TC1)
0xFF (special)
IFSC (TA3, T=1)
195 bytes
Historical bytes
8073C8211366????????????
COMPACT-TLV (category 0x80)
TCK checksum
✗ invalid
00
| # | Byte | Name | Description |
|---|---|---|---|
| 0 | 3B | TS | Direct convention (TS = 3B) |
| 1 | DC | T0 | Format byte: 12 historical bytes, Y1=0b1101 (TA1=present, TB1=absent, TC1=present, TD1=present) |
| 2 | ?? | TA1 | TA1: Fi=372, Di=RFU masked |
| 3 | FF | TC1 | TC1: extra guard time = 0xFF (T=1: CWT override) |
| 4 | 81 | TD1 | TD1: T=1 protocol indicator, Y2=0b1000 (TA2=absent, TB2=absent, TC2=absent, TD2=present) |
| 5 | 91 | TD2 | TD2: T=1 protocol indicator, Y3=0b1001 (TA3=present, TB3=absent, TC3=absent, TD3=present) |
| 6 | FE | TA3 | TA3: IFSC=254 (max information field size for card) |
| 7 | 1F | TD3 | TD3: T=15 protocol indicator, Y4=0b0001 (TA4=present, TB4=absent, TC4=absent, TD4=absent) |
| 8 | C3 | TA4 | TA4: IFSC=195 (max information field size for card) |
| 9 | 80 | T1 | Historical byte 1 |
| 10 | 73 | T2 | Historical byte 2 |
| 11 | C8 | T3 | Historical byte 3 |
| 12 | 21 | T4 | Historical byte 4 |
| 13 | 13 | T5 | Historical byte 5 |
| 14 | 66 | T6 | Historical byte 6 |
| 15 | ?? | T7 | Historical byte 7 masked |
| 16 | ?? | T8 | Historical byte 8 masked |
| 17 | ?? | T9 | Historical byte 9 masked |
| 18 | ?? | T10 | Historical byte 10 masked |
| 19 | ?? | T11 | Historical byte 11 masked |
| 20 | ?? | T12 | Historical byte 12 masked |
| 21 | ?? | TCK | Check byte: XOR(T0…TCK) = 7E → ✗ INVALID masked |
⚠ TCK check failed — ATR may be corrupted or masked
8 bytes are shown as ?? because the ATRMask at those positions is 00 —
these bits are variable across card instances and were not recorded. The analysis above is based on the known bytes only.
Use smartcard-atr.apdu.fr with your card's real ATR for a complete decode.
Software compatibility
| Software | Version | Reports | Success rate | |
|---|---|---|---|---|
| EIDAuthenticate | 1.2.5.0 |
1 |
100%
|
Details |
Operating system compatibility
| OS | Architecture | Service pack | Reports | Success rate | |
|---|---|---|---|---|---|
| Windows Server 2012 | x64 | — | 1 |
100%
|
Details |
Provider / middleware compatibility
| Provider | DLL | Version | Company | Reports | Success rate | |
|---|---|---|---|---|---|---|
| Athena ASECard Crypto CSP | Unknown |
Unknown |
Unknown | 1 |
100%
|
Details |