Gnuk v1.0.x (OpenPGP v2.0)
3B
DA
11
FF
81
B1
FE
55
1F
03
00
31
84
73
80
01
80
??
90
00
E4
mask: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00FFFFFF
3
Total reports
0%
Success rate
2020
First report
2020-11-20
Last report
ATR Analysis
ISO 7816-3 · local
Full analysis on smartcard-atr.apdu.fr ↗
Convention
direct
Protocol
T=1
T=15
Baud rate (TA1)
Fi=372, Di=1, fmax=4MHz, 372.00 cycles/ETU
Guard time (TC1)
0xFF (special)
IFSC (TA3, T=1)
3 bytes
Waiting times (TB3, T=1)
CWI=5 (CWT=43 etu), BWI=5 (BWT≈11,427,840 etu)
Historical bytes
00318473800180??9000
COMPACT-TLV (ISO 7816-4, category 0x00)
TCK checksum
✓ valid
E4
| # | Byte | Name | Description |
|---|---|---|---|
| 0 | 3B | TS | Direct convention (TS = 3B) |
| 1 | DA | T0 | Format byte: 10 historical bytes, Y1=0b1101 (TA1=present, TB1=absent, TC1=present, TD1=present) |
| 2 | 11 | TA1 | TA1: Fi=372, Di=1 → 372 cycles/ETU at 5MHz |
| 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 | B1 | TD2 | TD2: T=1 protocol indicator, Y3=0b1011 (TA3=present, TB3=present, TC3=absent, TD3=present) |
| 6 | FE | TA3 | TA3: IFSC=254 (max information field size for card) |
| 7 | 55 | TB3 | TB3: CWI=5 (CWT=43 etu), BWI=5 (BWT≈11,427,840 etu) |
| 8 | 1F | TD3 | TD3: T=15 protocol indicator, Y4=0b0001 (TA4=present, TB4=absent, TC4=absent, TD4=absent) |
| 9 | 03 | TA4 | TA4: IFSC=3 (max information field size for card) |
| 10 | 00 | T1 | Historical byte 1 |
| 11 | 31 | T2 | Historical byte 2 |
| 12 | 84 | T3 | Historical byte 3 |
| 13 | 73 | T4 | Historical byte 4 |
| 14 | 80 | T5 | Historical byte 5 |
| 15 | 01 | T6 | Historical byte 6 |
| 16 | 80 | T7 | Historical byte 7 |
| 17 | ?? | T8 | Historical byte 8 masked |
| 18 | 90 | T9 | Historical byte 9 |
| 19 | 00 | T10 | Historical byte 10 |
| 20 | E4 | TCK | Check byte: XOR(T0…TCK) = 00 → ✓ valid |
1 byte is 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 | 1.2.6.0 |
3 |
0%
|
Details |
Operating system compatibility
| OS | Architecture | Service pack | Reports | Success rate | |
|---|---|---|---|---|---|
| Windows Seven | x64 | Service Pack 1 | 3 |
0%
|
Details |
Provider / middleware compatibility
| Provider | DLL | Version | Company | Reports | Success rate | |
|---|---|---|---|---|---|---|
| OpenSC CSP | Unknown |
Unknown |
Unknown | 3 |
0%
|
Details |