Swissbit iShield Key 2
3B
D5
18
FF
81
B1
FE
45
1F
C3
80
73
C8
21
10
6F
1
Total reports
100%
Success rate
2026
First report
2026-06-23
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=12, fmax=4MHz, 31.00 cycles/ETU
Guard time (TC1)
0xFF (special)
IFSC (TA3, T=1)
195 bytes
Waiting times (TB3, T=1)
CWI=5 (CWT=43 etu), BWI=4 (BWT≈5,713,920 etu)
Historical bytes
8073C82110
COMPACT-TLV (category 0x80)
TCK checksum
✓ valid
6F
| # | Byte | Name | Description |
|---|---|---|---|
| 0 | 3B | TS | Direct convention (TS = 3B) |
| 1 | D5 | T0 | Format byte: 5 historical bytes, Y1=0b1101 (TA1=present, TB1=absent, TC1=present, TD1=present) |
| 2 | 18 | TA1 | TA1: Fi=372, Di=12 → 31 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 | 45 | TB3 | TB3: CWI=5 (CWT=43 etu), BWI=4 (BWT≈5,713,920 etu) |
| 8 | 1F | TD3 | TD3: T=15 protocol indicator, Y4=0b0001 (TA4=present, TB4=absent, TC4=absent, TD4=absent) |
| 9 | C3 | TA4 | TA4: IFSC=195 (max information field size for card) |
| 10 | 80 | T1 | Historical byte 1 |
| 11 | 73 | T2 | Historical byte 2 |
| 12 | C8 | T3 | Historical byte 3 |
| 13 | 21 | T4 | Historical byte 4 |
| 14 | 10 | T5 | Historical byte 5 |
| 15 | 6F | TCK | Check byte: XOR(T0…TCK) = 00 → ✓ valid |
Software compatibility
| Software | Version | Reports | Success rate | |
|---|---|---|---|---|
| EIDAuthenticate | 1.3.1.0 |
1 |
100%
|
Details |
Operating system compatibility
| OS | Architecture | Service pack | Reports | Success rate | |
|---|---|---|---|---|---|
| Windows Server 2022 | x64 | — | 1 |
100%
|
Details |
Provider / middleware compatibility
| Provider | DLL | Version | Company | Reports | Success rate | |
|---|---|---|---|---|---|---|
| Microsoft Base Smart Card Crypto Provider | C:\Program Files\Swissbit AG\OpenSC\minidriver\opensc-minidriver.dll |
0.26.3.0 |
Swissbit AG | 1 |
100%
|
Details |