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Partition-and-Recur (PAR) method is a simple and useful formal method used to design and prove algorithmic programs. In this paper, we address that PAR method is really an effective formal method on solving Combinatorics problems. We formally derive Combinatorics problems by PAR method, which can not only simplify the process of algorithmic program's designing and correctness testifying, but also...
Based on the analysis of the round transformation and key expansion, the advanced encryption standard (AES) algorithm is optimized through the look-up table. And then the optimized Rijndael algorithm based on SOPC (system on a programmable chip) is designed and implemented through software and hardware. According to the software design flow chart of the optimized Rijndael algorithm, the program design...
The data dependence analysis is a hard problem, particularly in the presence of data structures similar to the pointer. The inheritance and the polymorphism in object-oriented languages provide program design and software engineering with new methods. But, at the same time, they bring about more barriers to dependence analysis for object-oriented languages. This paper proposes an object-oriented data...
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