نتایج جستجو برای: boxes
تعداد نتایج: 10761 فیلتر نتایج به سال:
Advanced Encryption Standard (AES) block cipher system is widely used in cryptographic applications. Substitution boxes (S-boxes) are keystone of modern symmetric cryptosystems. They bring nonlinearity to cryptosystems and strengthen their cryptographic security. The S-box component that used in classic AES is fixed. If we generate this S-box dynamically, the cryptographic strength of AES ciphe...
High quality key-dependent S-boxes can break the preconditions of many cryptanalysis technologies, but it is difficult to construct them efficiently. Here, we proposed a method for fast constructing good key-dependent S-boxes, which are generated by means of a key-dependent affine transformation on a good base S-box. We proved their security by classifying the evaluative criteria of S-boxes int...
.view-promotion-boxes-block_1 div.views-row-1 { background:none; border-top:5px solid transparent; background-image:url(http://elsc.huji.ac.il/sites/default/files/css-admin-bg/bg1.jpg) !important; height:267px !important; margin-top:10px !important; border-top:none !important;} .view-promotion-boxes-block_1 .viewsrow-first .views-field-view-node a { display:block; height:25px; width:125px; back...
Populations of 10-39 CA1 pyramidal cells were recorded from four rats foraging for food reward in an environment consisting of two nearly identical boxes connected by a corridor. For each rat, a higher-than-chance fraction of cells had similarly shaped spatial firing fields in both boxes, but other cells had completely different fields in the two boxes. The level of correlation of fields in the...
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