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Security issues which exist while sequences produced by Logistic chaotic map used in encryption is analyzed. Moreover, an improved algorithm to the problem is proposed. The algorithm solves the some common problems of Logistic chaotic map such as ldquostable windowsrdquo, blank windows and uneven distribution of sequences etc. by increasing bifurcation parameters. It overcomes the defects of sequences...
With the aim for promoting separation of crosscutting concerns, the notion of aspects are currently introduced throughout the lifecycle of software development, even to other domains. Many aspects are found, designed or implemented thereby. As the concrete specification and implementation mechanisms vary greatly among aspects, it is relatively complex and difficult to compare them. This paper provides...
Security is a requisite and vital concern that should be addressed in e-commerce systems. Traditionally, to add security properties to the application, developers had to specify when, where and how to apply what security policies manually. Such a process is often complicate and error-prone. This paper describes an aspect oriented approach to separating security and application concerns at the architecture...
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