A-Trust eCard G3
3B
DD
96
FF
81
B1
FE
45
1F
03
80
31
B0
52
02
03
??
??
??
??
??
??
??
??
mask: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000000000000000
6
Total reports
83%
Success rate
2012
First report
2014-05-15
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=512, Di=32, fmax=5MHz, 16.00 cycles/ETU
Guard time (TC1)
0xFF (special)
IFSC (TA3, T=1)
3 bytes
Waiting times (TB3, T=1)
CWI=5 (CWT=43 etu), BWI=4 (BWT≈5,713,920 etu)
Historical bytes
8031B0520203??????????????
COMPACT-TLV (category 0x80)
TCK checksum
✗ invalid
00
| # | Byte | Name | Description |
|---|---|---|---|
| 0 | 3B | TS | Direct convention (TS = 3B) |
| 1 | DD | T0 | Format byte: 13 historical bytes, Y1=0b1101 (TA1=present, TB1=absent, TC1=present, TD1=present) |
| 2 | 96 | TA1 | TA1: Fi=512, Di=32 → 16 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 | 03 | TA4 | TA4: IFSC=3 (max information field size for card) |
| 10 | 80 | T1 | Historical byte 1 |
| 11 | 31 | T2 | Historical byte 2 |
| 12 | B0 | T3 | Historical byte 3 |
| 13 | 52 | T4 | Historical byte 4 |
| 14 | 02 | T5 | Historical byte 5 |
| 15 | 03 | T6 | Historical byte 6 |
| 16 | ?? | T7 | Historical byte 7 masked |
| 17 | ?? | T8 | Historical byte 8 masked |
| 18 | ?? | T9 | Historical byte 9 masked |
| 19 | ?? | T10 | Historical byte 10 masked |
| 20 | ?? | T11 | Historical byte 11 masked |
| 21 | ?? | T12 | Historical byte 12 masked |
| 22 | ?? | T13 | Historical byte 13 masked |
| 23 | ?? | TCK | Check byte: XOR(T0…TCK) = 71 → ✗ 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
Operating system compatibility
Provider / middleware compatibility
| Provider | DLL | Version | Company | Reports | Success rate | |
|---|---|---|---|---|---|---|
| Microsoft Base Smart Card Crypto Provider | ASignMiniDriver.dll |
1.3.1.1 |
A-Trust GmbH | 2 |
100%
|
Details |
| Microsoft Base Smart Card Crypto Provider | ASignMiniDriver.dll |
1.3.1.23 |
A-Trust GmbH | 2 |
100%
|
Details |
| Microsoft Base Smart Card Crypto Provider | ASignMiniDriver.dll |
1.3.1.15 |
A-Trust GmbH | 1 |
100%
|
Details |
| Microsoft Base Smart Card Crypto Provider | ASignMiniDriver.dll |
1.3.2.11 |
A-Trust GmbH | 1 |
0%
|
Details |