GB/T 35070.1-2018Parking electronic toll collection—Part 1: Data format and technical specification for CPU card (English PDF)

3.8 Application Maintenance Key

Application maintenance key refers to a key which is used in MAC calculation in the update of some files under application in CPU card.

3.9 Purchase Key

Purchase key refers to a key which is used for bidirectional authentication in purchase transaction process in CPU card.

3.10 Load Key

Load key refers to a key which is used for bidirectional authentication in load transaction process in CPU.

3.11 Subkey

Subkey refers to a key which is obtained through dispersed master key.

3.12 Error Counter

Error counter refers to a property which is used to restrict consecutive errors of key authentication in key.

3.13 File Identifier

File identifier is a unique identification symbol of a file.

3.14 Short File Identifier

Short file identifier refers to a unique short identification symbol of a file. By default, short file identifier is the latter five file identification symbols.

5.1 Basic Functions

CPU card shall have the following functions.

---COS;

---Contact interface supports T=0 communication protocol; non-contact interface supports Type-A communication protocol in ISO/IEC 14443;

---Support multiple applications for one card; the various applications shall be mutually independent;

---Support multiple file types, including binary file, fixed-length record file, variable-length record file and loop file;

---In communication process, support multiple security protection mechanism (protection of information confidentiality and integrity);

---Support multiple secure access modes and permissions (authentication function and password protection);

---Support DES, 3DES and SM4 algorithm;

---Support electronic purse and its extended application;

---Support file identifier selection directory mode.

5.2 Basic Performance

CPU card shall satisfy the following performance requirements.

---Storage capacity shall be not less than 16 k bytes;

---Contact interface supports the selection of multiple communication rates; default communication rate is 9.6 kbps; supports communication rate of not less than 57.6 kbps through PPS protocol; the communication rate of non-contact interface shall be not less than 106 kbps;

---Encryption and decryption performance shall be not lower than the performance of DES co-processor;

---Randomness indexes which generate random numbers shall comply with internationally acknowledged standard requirements on random number generation by hardware.

5.3 Physical Properties

Physical properties of CPU card shall comply with the stipulation in GB/T 16649.1 and ISO/IEC 10373-1.

5.4 Environmental Condition Adaptability

Under the following environment conditions, CPU card shall be able to stay normal.

---Working temperature. general requirement. -25 °C ~ +70 °C (cold area. -40 °C ~ +70 °C);

---Storage temperature. -40 °C ~ +85 °C;

---Relative humidity. 10% ~ 95%.

5.5 Electrical Characteristics

Electrical characteristics of CPU card shall comply with the following requirements.

---Contact interface shall be able to support 3 V or 1.8 V working voltage;

---Maximum external clock frequency that contact interface supports shall be not less than 7.5 MHz;

---Working voltage of non-contact interface shall be within the range of 13.56 MHz ± 7 kHz.

6.1 File Structure and Attribute

File structure and attribute of CPU card are shown in Figure 1 and Table 1. […]