What is ISO-IEC 14443-4:2012

ISO-IEC 14443-4:2012 is an international standard that specifies the protocols for communication between proximity coupling devices (PCD) and contactless smart cards (PICC). This standard is part of the ISO/IEC 14443 series, which defines the characteristics and commands for identification cards in close proximity.

of ISO-IEC 14443-4:2012

The ISO-IEC 14443-4:2012 standard outlines a set of transmission protocols and techniques that enable secure and efficient data exchange between PCDs and PICCs. It focuses on the communication protocol layer of contactless smart card systems and provides detailed specifications for the structure of application protocols.

The standard defines two types of PICCs:

Type A: These cards use load modulation for both power and data transfer.

Type B: These cards use a combination of load modulation and backscatter methods for power and data transfer.

Technical Specifications and Functions

The ISO-IEC 14443-4:2012 standard specifies several important technical elements and functions:

APDU Structure: The standard defines the structure of Application Protocol Data Units (APDUs), which are used for transmitting commands and responses between the PCD and PICC. It defines how the APDU is organized and the different fields within it.

Data Transmission: The standard specifies the protocols for data transmission between the PCD and PICC. It defines the bit rates, modulation schemes, framing, and error handling mechanisms to ensure reliable and secure communication.

Card Activation and Deactivation: The standard describes the procedures for activating and deactivating the PICC. It defines the initial states, protocols, and conditions required for a successful activation or deactivation process.

Applications of ISO-IEC 14443-4:2012

The ISO-IEC 14443-4:2012 standard has found wide applications in various fields:

Contactless Payment Systems: Many contactless payment systems, such as mobile wallets and NFC-enabled credit cards, utilize the ISO-IEC 14443-4:2012 standard for secure transactions.

Public Transportation Systems: Smart cards used in public transportation systems, like metro cards and bus passes, often rely on this standard for quick and convenient access.

Access Control: ISO-IEC 14443-4:2012 is commonly used in access control systems for buildings, parking lots, and electronic locks.

Overall, the ISO-IEC 14443-4:2012 standard plays a critical role in enabling secure and efficient communication between contactless smart cards and proximity coupling devices. Its widespread adoption in various industries demonstrates its effectiveness and reliability.