In the literature, several dynamic ID-based remote user mutual authentication schemes are implemented using password, smartcard and Elliptic Curve Cryptography(ECC), however, none of them provides resilience against d...In the literature, several dynamic ID-based remote user mutual authentication schemes are implemented using password, smartcard and Elliptic Curve Cryptography(ECC), however, none of them provides resilience against different attacks. Therefore, there is a great need to design an efficient scheme for practical applications. In this paper, we proposed such a scheme in order to provide desired security attributes and computation efficiencies. Compared with other existing techniques, our scheme is more efficient and secured. In addition, our scheme is provably secure in the random oracle model under the hardness assumption of computational Diffie-Hellman problem.展开更多
Conditional access system (CAS) is a key technical component in digital TV broadcasting through which TV op-erators manage the appropriate rights of different subscribers in order to protect their commercial benefits....Conditional access system (CAS) is a key technical component in digital TV broadcasting through which TV op-erators manage the appropriate rights of different subscribers in order to protect their commercial benefits. The normal digital TV receiver can only receive and decode the pay TV programs scrambled by one specific CAS. In this paper, the authors proposed a smartcard conditional access interface (SCAI) scheme in order to make the digital TV receiver be a common receiving platform independent of any specific CAS employed at the broadcasting head-end. As a result, it only needs to include a common condi-tional access software package (CCAP) without any requirement of hardware modification in the receiver. Comparison between the two mentioned DVB-CI-based schemes showed that the cost of such kind receiver is greatly reduced. The main design points of the proposed scheme and its reference implementation’s architecture are presented in this paper. This scheme is also one of the candidate national standards for Chinese digital TV broadcasting industry.展开更多
文摘In the literature, several dynamic ID-based remote user mutual authentication schemes are implemented using password, smartcard and Elliptic Curve Cryptography(ECC), however, none of them provides resilience against different attacks. Therefore, there is a great need to design an efficient scheme for practical applications. In this paper, we proposed such a scheme in order to provide desired security attributes and computation efficiencies. Compared with other existing techniques, our scheme is more efficient and secured. In addition, our scheme is provably secure in the random oracle model under the hardness assumption of computational Diffie-Hellman problem.
基金Project (No. 200442) supported by the Electronics DevelopmentFoundation for the Key Industrialization Project of the Ministry of0Information Industry, China
文摘Conditional access system (CAS) is a key technical component in digital TV broadcasting through which TV op-erators manage the appropriate rights of different subscribers in order to protect their commercial benefits. The normal digital TV receiver can only receive and decode the pay TV programs scrambled by one specific CAS. In this paper, the authors proposed a smartcard conditional access interface (SCAI) scheme in order to make the digital TV receiver be a common receiving platform independent of any specific CAS employed at the broadcasting head-end. As a result, it only needs to include a common condi-tional access software package (CCAP) without any requirement of hardware modification in the receiver. Comparison between the two mentioned DVB-CI-based schemes showed that the cost of such kind receiver is greatly reduced. The main design points of the proposed scheme and its reference implementation’s architecture are presented in this paper. This scheme is also one of the candidate national standards for Chinese digital TV broadcasting industry.
