Research And Implementation Of Internet Protocol Based On Smartcard

Abstract:With the development and the popular of the Internet, more and more electronic equipment can get resources and provide services by the through Internet access.smartcard relay on the store information safely and the compute safely, it is widely used in the field of information security. if we can combine the Internet with smartcard, it will enhance the security in the Internet, at the same time it will get the innovation application.The Internet smartcard can be used to security communication with the host computer or remote computers via standard Internet protocols. Compared with the general smartcard, Internet smartcard can support standard Internet protocols:TCP/IP protocol. by supporting the standard TCP/IP protocols, the Internet smartcard can omit the middle protocol transform component which is in the general smartcard, and can simplify the smartcard's structure. while the Internet smartcard reduce the cost, it can communicate with the every node which is on the Internet directly, and can enhance the security and response rate of the smartcard system.In the paper firstly the development of the smartcard Internet protocols is introduced. comparsion of several major embedded TCP/IP protocol stack. LWIP is chosen as the entry point for research and development.there is a particular analysis for the process model, the management of buffer and memory, the API of LWIP, the efficient memory management mechanism of the LWIP is the distillation of design. because of the javacard3.0 smartcard platform relays on theμC/OS-Ⅱoperate system, so the kernel of embedded RTOSμC/OS-Ⅱis analyzed in the paper secondly. Thirdly,the implement of LWIP stack and how to transplant LWIP stack toμC/OS-Ⅱsystem are expatiated on, and the LWIP is optimizated on the base of it. finally, we test the data transfer rate, and the result can meet the standard of the upper applications.