In this paper, a new stream ciphers design method (named TEP) is proposed to base on the table-element nonlinear permutation. A number of words are generated by n-LFSRs(linear feedback shift register) input to a table. In the table, every word is dealt with by the nonlinear transforms and the several words are combined with nonlinear function to produce keystream words. The algorithm is simplic...

Instruction Memoization is a technique that enables performing multiple-cycle computations in a single cycle by exploiting redundant instructions. The technique is based on the notion of memoing: saving the input and output of previous calculations and using the output if the input is encountered again. Several recent papers have proven that non-trivial speedup (over 10%) can be obtained by usi...

The aim of this paper is to compute the rational character tables of the dicyclic group $T_{4n}$, the groups of order $pq$ and $pqr$. Some general properties of rational character tables are also considered into account.The aim of this paper is to compute the rational character tables of the dicyclic group $T_{4n}$, the groups of order $pq$ and $pqr$. Some general properties of rational charact...

ByteSub is a key module in the AES hardware architectures. Most of the ByteSub design is accomplished by look-up table method. To reduce the complexity of AES module and improve the performance and security, we propose a novel dynamic ByteSub generator, which is composed of finite field inverse and multipliers. In our design, look-up table method is no more essential to the ByteSub hardware arc...