A Study on the Improvement of Mifare Classic Simulation and Securit

• Main Authors: Lee, Kuei Yuan, 李魁元
• Other Authors: Chou, Li-Ping PhD
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/33714297084678708255

碩士 === 中國文化大學 === 資訊管理學系 === 100 === This study focused on the simulation and security problems of contactless smart card. Since contactless smart cards communicate through radio, it is easy for an attacker to eavesdrop and obtain the card related information. This causes security problems such as card duplicating and card data tampering. Currently, the most widely used smart card is Mifare Classic card, which is used in a broad range of applications including transport ticketing, access management, e-payment, etc. Therefore, this study targets Mifare Classic card. In the last few years, many articles have been devoted to the study of Mifare Classic card security. Their studies found that due to many weaknesses in Mifare Classic card the card key can be retrieved by certain attacks and accordingly the card data can be changed. According to their methods, this study conducts experiment to verify their feasibility. This study makes use of Proxmark3 device to read and emulate Mifare Classic card. In the card emulation experiments, the emulation card can be read by building access control reader and MRT balance inquiry machine, successfully. According to the security weakness of Mifare Classic card authentication learned through experiments, an improved method is proposed to increase the security of Mifare Classic card. Since the proposed method aimed at possible attacker behaviors, it can defend against most existing attacks.