cryptoCertum3.5
3B
DD
96
FF
81
31
FE
45
80
59
5F
53
74
64
5F
49
6E
69
74
81
??
??
mask: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF0000
1
Total reports
100%
Success rate
2025
First report
2025-07-17
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=32, fmax=5MHz, 16.00 cycles/ETU
Guard time (TC1)
0xFF (special)
IFSC (TA3, T=1)
254 bytes
Waiting times (TB3, T=1)
CWI=5 (CWT=43 etu), BWI=4 (BWT≈5,713,920 etu)
Historical bytes
80595F5374645F496E697481??
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 | 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 | 45 | TB3 | TB3: CWI=5 (CWT=43 etu), BWI=4 (BWT≈5,713,920 etu) |
| 8 | 80 | T1 | Historical byte 1 |
| 9 | 59 | T2 | Historical byte 2 |
| 10 | 5F | T3 | Historical byte 3 |
| 11 | 53 | T4 | Historical byte 4 |
| 12 | 74 | T5 | Historical byte 5 |
| 13 | 64 | T6 | Historical byte 6 |
| 14 | 5F | T7 | Historical byte 7 |
| 15 | 49 | T8 | Historical byte 8 |
| 16 | 6E | T9 | Historical byte 9 |
| 17 | 69 | T10 | Historical byte 10 |
| 18 | 74 | T11 | Historical byte 11 |
| 19 | 81 | T12 | Historical byte 12 |
| 20 | ?? | T13 | Historical byte 13 masked |
| 21 | ?? | TCK | Check byte: XOR(T0…TCK) = 9E → ✗ INVALID masked |
⚠ TCK check failed — ATR may be corrupted or masked
2 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 | 1.3.0.0 |
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 | crypto35md.dll |
1.3.8.0 |
Asseco Data Systems | 1 |
100%
|
Details |