Drivers License (IC Card) Specification

1. System Overview

• Standards: ISO/IEC 14443 Type B (NFC), ISO/IEC 7816-4.
• Encoding:
  • Text: Shift-JIS (JIS X 0208 & JIS X 0201).
  • Photo: JPEG2000.
  • Gaiji (External Char): MMR Compressed Bitmap.
• Cryptography:
  • Hash: SHA-256.
  • Signature: RSA-2048 (PKCS #1 v1.5).

2. Application Identifiers (AID)

DF	AID	PIX	Description
DF1	A0 00 00 02 31 01 00 00 00 00 00 00 00 00 00 00	Start 01	Main Data
DF2	A0 00 00 02 31 02 00 00 00 00 00 00 00 00 00 00	Start 02	Photo Data
DF3	A0 00 00 02 48 03 00 00 00 00 00 00 00 00 00 00	Start 03	RFU (ISO/IEC 18013-2)

3. File Structure & Access Control

Parent	EF	EF-ID	Type	Content	Size	Read Access	Write Access
MF	EF01	2F 01	WEF	Common Data	17	FREE	-
MF	EF02	00 0A	WEF	PIN Settings	3	FREE	-
MF	IEF01	00 01	IEF	PIN 1	6	-	-
MF	IEF02	00 02	IEF	PIN 2	6	-	-
DF1	EF01	00 01	WEF	License Info	880	PIN 1	-
DF1	EF02	00 02	WEF	Registered Domicile	82	PIN 1 & 2	-
DF1	EF03	00 03	WEF	Gaiji	264	PIN 1	-
DF1	EF04	00 04	WEF	Condition Changes	640	PIN 1	Forbidden
DF1	EF05	00 05	WEF	Gaiji Changes	663	PIN 1	Forbidden
DF1	EF06	00 06	WEF	Domicile Changes	256	PIN 1 & 2	Forbidden
DF1	EF07	00 07	WEF	Electronic Signature	578	PIN 1	-
DF2	EF01	00 01	WEF	Face Photo	2005	PIN 1 & 2	-
DF3	EF01	00 01	WEF	RFU	512	PIN 1	-

Access Rights Note:

• If MF/EF02 Byte 1 Bit 1 is 0 (PIN not set), verification is treated as using a Default PIN (****) or skipped.
• "Condition Changes" (EF04) Read is Forbidden (or treated as PIN1) if PIN is not set.

4. Data Content Details

4.1 Common Data Element (MF/EF01)

Tag	Len	Content	Encoding
45	11	Card Issuer Data (Ver + IssueDate + ExpDate)	0201 + HEX
46	2	Pre-issue Data (ManufID + CryptoID)	HEX

4.2 License Information (DF1/EF01) - Tag 00 01

Tag	Len	Content
11	1	JIS X 0208 Version
12	72	Name (Use 2121 space between Last/First)
13	32	Kana Name
14	32	Alias Name (Tsusho-mei)
15	16	Unified Kana Name
16	7	Date of Birth (EraYYMMDD)
17	80	Address
18	7	Date of Issue (EraYYMMDD)
19	5	Inquiry Number (Ref #)
1A	6	Color Class (優良, 新規, その他)
1B	7	Expiration Date (EraYYMMDD)
1C	80	Condition 1
1D	80	Condition 2
1E	80	Condition 3
1F	80	Condition 4
20	24	PSC (Public Safety Commission) Name
21	12	License Number
22	7	Date: Motorcycle/Small Special/Moped
23	7	Date: Others
24	7	Date: Class 2
25..32	7	Date: Individual Categories (Large, Ord, LargeSpec, etc.)
33	7	Date: Semi-Medium
34..3F	-	RFU

4.3 Registered Domicile (DF1/EF02) - Tag 00 02

Tag	Len	Content
41	80	Registered Domicile (Honseki)

4.4 Gaiji (DF1/EF03)

Contains bitmap data for characters not in JIS X 0208.

• Encoding: MMR Compressed Bitmap.
• Header: 1 byte (Structure/size).
• Tags: 48 (Gaiji 1), 49 (Gaiji 2).

4.5 Condition Changes (DF1/EF04)

Updates to address, name, or conditions.

• Tags: 50 (Updated Flag), 51..5F (PSC Change), 60..97 (New Address/Name/Conditions).

4.6 Electronic Signature (DF1/EF07)

• Hash Input: All data in DF1/EF01, DF1/EF02, and DF2/EF01.
• Algorithm: SHA-256 hash + RSA-2048 signature.
• Tag B1: Signature Value (256 bytes).

4.7 Face Photo (DF2/EF01)

• Tag: 5F 40
• Format: JPEG2000 (Monochrome).
• Max Size: 2000 bytes.

5. Command Reference

SELECT FILE (00 A4)

• P1: 04 (AID) or 02 (EF-ID).
• P2: 0C (First/Next).

VERIFY (00 20)

• P1: 00
• P2: 80 (Current EF / Implicit).
  • Note: The spec implies selecting the IEF or using a Short EF-ID in P2 is possible, but 80 targets the PIN associated with the current context (DF).
• Data: 4-digit numeric PIN.
• Retry: 3 times each for PIN1 and PIN2.

READ BINARY (00 B0)

• P1: 8x (EF-ID MSB) or 00 (Current EF).
• P2: xx (EF-ID LSB) or Offset.

6. Reference

• 運転免許証及び運転免許証作成システム等仕様書 (仕様書バージョン番号: 010)