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Articles 31 - 32 of 32

Full-Text Articles in Science and Technology Studies

Realizing Fully Secure Unrestricted Id-Based Ring Signature In The Standard Model Based On Hibe, Man Ho Au, Joseph K. Liu, Willy Susilo, Jianying Zhou Jan 2013

Realizing Fully Secure Unrestricted Id-Based Ring Signature In The Standard Model Based On Hibe, Man Ho Au, Joseph K. Liu, Willy Susilo, Jianying Zhou

Faculty of Engineering and Information Sciences - Papers: Part A

We describe a secure and unrestricted identity-based ring signature scheme in the standard model. Our construction is provably fully secure in the standard model under static assumptions and is motivated by an existing HIBE scheme. Our observation on the relationship between ID-based ring signatures and HIBE is of interest to researchers in other fields as well. Following the strongest anonymity definition in ring signatures, we define a new level of anonymity for ID-based ring signatures in which the attacker can specify the randomness used in the creation of the user secret key, in addition to the private key generators master …


Risk Management In Liner Ship Fleet Deployment: A Joint Chance Constrained Programming Model, Tingsong Wang, Qiang Meng, Shuaian Wang, Zhijia Tan Jan 2013

Risk Management In Liner Ship Fleet Deployment: A Joint Chance Constrained Programming Model, Tingsong Wang, Qiang Meng, Shuaian Wang, Zhijia Tan

Faculty of Engineering and Information Sciences - Papers: Part A

This paper provides a tangible methodology to deal with the liner ship fleet deployment problem aiming at minimizing the total cost while maintaining a service level under uncertain container demand. The problem is first formulated as a joint chance constrained programming model, and the sample average approximation method and mixed-integer programming are used to deal with it. Finally, a numerical example of a liner shipping network is carried out to verify the applicability of the proposed model and solution algorithm. It is found that the service level has significant effect on the total cost.