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As the rapid development of online traveling and abundance of tourism products, travel search engine provides travelers an effective solution to find products information with lo w est price. This paper introduces the relevant concept son travel search engine firstly, then it analyzes the development status and existing problems of China's travel search engines. Lastly, it advances some targeted proposals.
S-box (Substitution box) is an important component in the block cipher. In this paper, a novel algorithm for generating S-box based on spatiotemporal chaos is proposed. Firstly, the performance indices of S-box are summarized. Then, the detailed method for constructing S-box is described. Finally, Simulation tests are done, which show that a set of S-boxes generated by our algorithm has high cryptographic...
Utilizing the complexity and good pseudorandom property of the spatiotemporal chaotic system, a novel image encryption algorithm is proposed. The plain-image block data is masked by the values extracted from the spatiotemporal chaotic system. Then the masked data is shuffled according to the maximum state value in the system. A cipher block chaining (CBC) mode is employed to adjust the state value...
A fast method to generate pseudorandom numbers based on a spatiotemporal chaotic system is proposed in this paper. The time-consuming operations in the process of generate pseudorandom numbers is replaced as possible by some fast ones, which makes the generator own faster speed. Then a new stream cipher is presented and its security is also discussed. The cryptographic properties of the pseudorandom-bit...
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