G&D SPK 2.3 T=1
3B
B7
94
00
81
31
FE
65
53
50
4B
32
33
90
00
D1
4
Total reports
100%
Success rate
2012
First report
2023-08-02
Last report
ATR Analysis
ISO 7816-3 · local
Full analysis on smartcard-atr.apdu.fr ↗
Convention
direct
Protocol
T=1
Baud rate (TA1)
Fi=512, Di=8, fmax=5MHz, 64.00 cycles/ETU
IFSC (TA3, T=1)
254 bytes
Waiting times (TB3, T=1)
CWI=5 (CWT=43 etu), BWI=6 (BWT≈22,855,680 etu)
Historical bytes
53504B32339000
Proprietary / unstructured
TCK checksum
✓ valid
D1
| # | Byte | Name | Description |
|---|---|---|---|
| 0 | 3B | TS | Direct convention (TS = 3B) |
| 1 | B7 | T0 | Format byte: 7 historical bytes, Y1=0b1011 (TA1=present, TB1=present, TC1=absent, TD1=present) |
| 2 | 94 | TA1 | TA1: Fi=512, Di=8 → 64 cycles/ETU at 5MHz |
| 3 | 00 | TB1 | TB1: deprecated Vpp programming voltage parameter |
| 4 | 81 | TD1 | TD1: T=1 protocol indicator, Y2=0b1000 (TA2=absent, TB2=absent, TC2=absent, TD2=present) |
| 5 | 31 | TD2 | TD2: T=1 protocol indicator, Y3=0b0011 (TA3=present, TB3=present, TC3=absent, TD3=absent) |
| 6 | FE | TA3 | TA3: IFSC=254 (max information field size for card) |
| 7 | 65 | TB3 | TB3: CWI=5 (CWT=43 etu), BWI=6 (BWT≈22,855,680 etu) |
| 8 | 53 | T1 | Historical byte 1 |
| 9 | 50 | T2 | Historical byte 2 |
| 10 | 4B | T3 | Historical byte 3 |
| 11 | 32 | T4 | Historical byte 4 |
| 12 | 33 | T5 | Historical byte 5 |
| 13 | 90 | T6 | Historical byte 6 |
| 14 | 00 | T7 | Historical byte 7 |
| 15 | D1 | TCK | Check byte: XOR(T0…TCK) = 00 → ✓ valid |
Software compatibility
Operating system compatibility
Provider / middleware compatibility
| Provider | DLL | Version | Company | Reports | Success rate | |
|---|---|---|---|---|---|---|
| SafeSign Standard Cryptographic Service Provider | aetcsss1.dll |
3.0.0.2298 |
A.E.T. Europe B.V. | 2 |
100%
|
Details |
| SafeSign Standard Cryptographic Service Provider | Unknown |
Unknown |
Unknown | 1 |
100%
|
Details |
| SafeSign CSP Version 1.0 | aetcsss1.dll |
3.0.0."1778 |
A.E.T. Europe B.V. | 1 |
100%
|
Details |