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| PRESENT is a lightweight block cipher algorithm.The advantages of simple structure, hardware and software to achieve rapid, particularly suitable for use under the limited environment, makes much industry attention.based on the structural characteristics and cubic detection of PRESENT algorithm, two key "quantum" acquisition algorithm was designed.Research results show that: the 4 round of the simplified PRESENT for each output bit have all been involved in the main key bit information of all with no key "quantum" existed; in the 10 dimension cubic variable, the 6 round of the simplified PRESENT output accumulated in each bit are all involved in the main key bit signal to all the rest with no "quantum key" existed.These results illustrate that the wheel PRESENT cipher algorithm with key information diffusion and confusion are stable. |
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cw277: ½ð±Ò+20, ¡ïÓаïÖú, ·Ç³£ºÃ~ 2013-01-23 17:31:17
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