This paper generalizes the previous mobile communication systems from the first generation to the thirdgeneration, and presents the requirements of the future fourth generation mobile communication system (4G). Thenth...This paper generalizes the previous mobile communication systems from the first generation to the thirdgeneration, and presents the requirements of the future fourth generation mobile communication system (4G). Thenthe Internet-based 4G system is presented, which breaks through the close structure of the traditional ones. Finally,the key technologies of the Internet-based 4G system are discussed.展开更多
随着RFID(Radio Frequency Identification)技术研究进展,RFID系统的应用日趋广泛,从而使得RFID系统本身固有限制所导致的一些问题变得突出和严重,其中就包括RFID的安全、隐私问题。所以基于RFID系统的发展和应用考虑,RFID系统必须满足...随着RFID(Radio Frequency Identification)技术研究进展,RFID系统的应用日趋广泛,从而使得RFID系统本身固有限制所导致的一些问题变得突出和严重,其中就包括RFID的安全、隐私问题。所以基于RFID系统的发展和应用考虑,RFID系统必须满足一定的安全需求。在NTRU(Number Theory Research Unit)公钥加密系统的基础上,提出一种新的RFID安全认证协议,并且结合NTRU公钥加密系统的安全性和通用可组合模型,对新协议的安全性进行了系统、形式化的描述和分析。展开更多
文摘This paper generalizes the previous mobile communication systems from the first generation to the thirdgeneration, and presents the requirements of the future fourth generation mobile communication system (4G). Thenthe Internet-based 4G system is presented, which breaks through the close structure of the traditional ones. Finally,the key technologies of the Internet-based 4G system are discussed.
文摘随着RFID(Radio Frequency Identification)技术研究进展,RFID系统的应用日趋广泛,从而使得RFID系统本身固有限制所导致的一些问题变得突出和严重,其中就包括RFID的安全、隐私问题。所以基于RFID系统的发展和应用考虑,RFID系统必须满足一定的安全需求。在NTRU(Number Theory Research Unit)公钥加密系统的基础上,提出一种新的RFID安全认证协议,并且结合NTRU公钥加密系统的安全性和通用可组合模型,对新协议的安全性进行了系统、形式化的描述和分析。
