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In this paper, a novel multiple-level secret image sharing scheme is proposed, which achieves the additional steganography, the authentication, and the scalable abilities. The key idea is that the secret image is revealed at different quality levels with the different priorities. Specifically, based on the weight function and Shamir’s secret sharing, the meaningful shadow images are distributed among...
Influenced by the fusion of Internet Plus and education, Nanjing University of Finance and Economics launches the construction of “Intelligent Campus” through the application of NFC Smart Campus Card. Through reviewing the functions of NFC mobile phone smart campus card, the multiple application scenes on campus are demonstrated and the advantages are indicated as multi-function, optimized user experience,...
Computer security depends on the user authentication method, and alphanumeric password is the most widely used method to protect users' privacy. However, users tend to choose short and simple passwords which will be broken easily, while secure passwords are difficult to remember. Graphical password is a promising solution to this problem, as psychologists have shown that images are more memorable...
Wireless Mesh Network (WMN) is a promising broadband wireless network architecture. Security is an important component of the WMN architecture but is not fully considered so far. In this paper, we introduce a prototype secure wireless mesh network testbed called SJTU-MESH built by Shanghai Jiao Tong University. The detailed design and implementation of secure WMN nodes are presented, and the construction...
Wireless Mesh Network (WMN) is an emerging technology that has developed a lot these years. WMN has the feather of self-organization, distributed structure. The main topological characteristic of WMN is that there are only one or several node connecting to the infrastructure network as gateway and all other nodes connect to the gateway through the relay of the neighboring nodes, and then connect with...
In this paper, we propose a group-based trust model named F-PKI (Freely organized one level Public Key Infrastructure) in P2P system based on Trusted Computing (TC) technology which is used to enhance PC security by incorporating hardware platform. In this model, peers are organized freely by group, each of which is a one level PKI. Preliminary evaluation results show that the proposed model is realistic...
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