JAVA card

Abstract

The invention discloses a JAVA card, which aims to develop application of products with different functions on a USIM (universal subscriber identity module) smart card by utilizing a JAVACARD technology. The JAVA card comprises Java Card Framework and APIs, a functional interface module, a JAVA virtual machine and a card operation system, wherein the Java Card Framework and APIs is used for receiving APDU (application protocol data unit) transmitted by card access equipment and forwarding the APDU to the functional interface module; the functional interface module is connected with the Java Card Framework and APIs, and processes an APDU command to ensure that the processing result returns an APDU response through the Java Card Framework and APIs; the JAVA virtual machine is used to realize the uniformity of card interfaces and uniformity of programming language, including different technologies of various card suppliers on the card bottom; and the card operation system is responsible for processing of the lower layer.

Description

technical field [0001] The invention relates to the technical fields of USIM card application and JAVA CARD, in particular to a JAVA card under 3G WCDMA network. Background technique [0002] The Universal Subscriber Identity Module (USIM) card is the third-generation mobile phone card, also called an upgraded SIM, which is a component of the UMTS 3G network. Many people think that in the 3G era, most applications can only be implemented by mobile phones, and the limited resources on the card only need to implement the authentication function. Indeed, the application of 3G is very complicated, and most of the applications cannot be completed by STK card alone. But the USIM card can not only do simple authentication function, but also can support multiple applications. Facts have proved that it is gradually transitioning to a mobile business platform, and even the final multi-application platform, realizing other applications such as electronic wallets, electronic credit car...

AI Technical Summary

Problems solved by technology

[0005] The existing technology is to use OTA technology. Each card manufacturer must follow the SIM card program and apply the OTA download technical specification to generate the OTA service menu. It is not like the JAVA CARD technology, which can use language programming to realize the OTA service application. The OTA technical specification organizes the corresponding binary code to realize the OTA business. From this perspective, the OTA technology has certain limitations:

[0006] 1. The application will depend on a specific card manufacturer and cannot complete different functions;

[0007] 2. The communication between the application program in the SIM card and the terminal or background server is complicated;

[0008] 3. Developers must understand complex SIM card hardware and SIM card-specific technologies to develop applications, which takes up a lot of development time and is difficult to develop

Images