CHT GPKI Card 32K
3B
B8
??
??
81
31
FA
52
43
48
54
4D
4F
49
43
41
??
mask: FFFF0000FFFFFFFFFFFFFFFFFFFFFFFF00
5
Total reports
80%
Success rate
2012
First report
2017-05-25
Last report
ATR Analysis
ISO 7816-3 · local
Full analysis on smartcard-atr.apdu.fr ↗
Convention
direct
Protocol
T=1
IFSC (TA3, T=1)
250 bytes
Waiting times (TB3, T=1)
CWI=2 (CWT=15 etu), BWI=5 (BWT≈11,427,840 etu)
Historical bytes
4348544D4F494341
Proprietary / unstructured
TCK checksum
✗ invalid
00
| # | Byte | Name | Description |
|---|---|---|---|
| 0 | 3B | TS | Direct convention (TS = 3B) |
| 1 | B8 | T0 | Format byte: 8 historical bytes, Y1=0b1011 (TA1=present, TB1=present, TC1=absent, TD1=present) |
| 2 | ?? | TA1 | TA1: Fi=372, Di=RFU masked |
| 3 | ?? | TB1 | TB1: deprecated Vpp programming voltage parameter masked |
| 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 | FA | TA3 | TA3: IFSC=250 (max information field size for card) |
| 7 | 52 | TB3 | TB3: CWI=2 (CWT=15 etu), BWI=5 (BWT≈11,427,840 etu) |
| 8 | 43 | T1 | Historical byte 1 |
| 9 | 48 | T2 | Historical byte 2 |
| 10 | 54 | T3 | Historical byte 3 |
| 11 | 4D | T4 | Historical byte 4 |
| 12 | 4F | T5 | Historical byte 5 |
| 13 | 49 | T6 | Historical byte 6 |
| 14 | 43 | T7 | Historical byte 7 |
| 15 | 41 | T8 | Historical byte 8 |
| 16 | ?? | TCK | Check byte: XOR(T0…TCK) = B6 → ✗ INVALID masked |
⚠ TCK check failed — ATR may be corrupted or masked
3 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 | |
|---|---|---|---|---|---|---|
| HiCOS PKI Smart Card Cryptographic Service Provider | C:\WINDOWS\system32\HiCOSCSPv64.dll |
2.1.9.64988 |
Chunghwa Telecom Co., Ltd. | 3 |
67%
|
Details |
| HiCOS PKI Smart Card Cryptographic Service Provider | C:\Windows\system32\\HiCOSCSPv32.dll |
2, 1, 6, 56903 |
Chunghwa Telecom Co., Ltd. | 1 |
100%
|
Details |
| HiCOS PKI Smart Card Cryptographic Service Provider | C:\windows\system32\HiCOSCSPv32.dll |
2, 1, 7, 57213 |
Chunghwa Telecom Co., Ltd. | 1 |
100%
|
Details |