CLIC/Efforts for Improved Interoperability of Contactless IC Cards

Efforts for Improved Interoperability of Contactless IC Cards
Based on ISO/IEC14443 Standards

* Necessity for ensuring compatibility between IC cards and proximity coupling devices


Compatibility among manufacturers and among model types	Coexistence of multiple model types

The objectives of ensuring compatibility between the two are to enable communication among different types of models from different manufacturers and to enable intercommunication among multiple model types, thereby making it possible to build and offer an efficient, low-cost and highly convenient service system and contributing to the dissemination and promotion of IC cards.

* Compatibility verification flow

* Compatibility verification methods used for proving that IC cards can be issued for the Basic Resident Registration Network System

Based on the Compatibility Verification Testing Specifications (Version 1.0), tests were carried out for the following test items:

Confirm whether or not data transmission and reception becomes possible when the IC card is inserted into the proximity coupling device (C1).
Confirm whether or not communication protocols are properly enforced between the IC card and the proximity coupling device (C2).
Confirm whether or not communication commands are properly executed between the IC card and the proximity coupling device (C3). Also, confirm whether basic commands (SELECT FILE, GET DATA and INTERNAL AUTHENTICATION) as well as vendor-selected commands that maximize power consumption in the IC chip (memory erasure, etc.) are properly executed.
Carry out cross verification tests for all IC card and proximity coupling device models in relation to the items listed above.
Confirm the compatibility of IC cards using three units chosen from each model number (lot, version) and that of proximity coupling devices using two units chosen from each model number (lot, version).
IC card tests were carried out ten times in each of the four directions (front, back, forward, backward), and IC cards were considered to have passed the test if they functioned properly nine times or more.
In order to obtain reference values, IC cards were left in the proximity coupling device for five minutes and then taken out to measure how the temperature around the IC chip changed immediately after they were taken out.