公开(公告)号：MY163949A

公开(公告)日：2017-11-15

申请号：MYPI2012005375

申请日：2012-12-12

Applicant: MIMOS BERHAD

Inventor： HERMAN ISA ,  ABDURASHID MAMADOLIMOV ,  MUHAMMAD REZA Z'ABA

IPC: H04L9/00 ,  H04L9/06 ,  H04L9/18

Abstract: A METHOD TO CONSTRUCT BIJECTIVE SUBSTITUTION BOX BY UTILIZING NON-BIJECTIVE POWER FUNCTIONS IN THE FINITE FIELD BY SELECTING A BOOLEAN MAP FROM A PLURALITY OF NON-BIJECTIVE POWER FUNCTIONS (102); EXTENDING AN IMAGE OF SAID BOOLEAN MAP TO GENERATE AN EXTENDED MAP BY ADDING ANOTHER POWER FUNCTION IN FINITE FIELD (104); OBTAINING A BIJECTIVE FUNCTION FROM SAID EXTENDED IMAGE BY UTILIZING BALANCED BOOLEAN FUNCTION MAKER ALGORITHM (106); PERFORMING ANALYSIS ON CRYPTOGRAPHIC PROPERTIES OF SUBSTITUTION BOX (110); AND ITERATING SAID STEPS UNTIL SAID CRYPTOGRAPHIC PROPERTIES MEET PREDETERMINED CONDITION OF A BIJECTIVE SUBSTITUTION BOX. ANALYSIS IS PERFORMED ON CRYPTOGRAPHIC PROPERTIES OF SUBSTITUTION BOX TO OBTAIN SUBSTITUTION BOX WITH HIGHEST NONLINEARITY VALUE OF 104 AND LOW DIFFERENTIAL UNIFORMITY VALUE OF 6. FURTHER, A SET OF NON-PERMUTATION LINEARLY EQUIVALENT POWER FUNCTIONS ARE UTILIZED (I.E. X3 , X9 AND X39 ) AND BINOMIAL COMBINATION WITH SELECTED CANDIDATES FROM SET OF ALL POWER FUNCTIONS IN F28. Fig 1.0

公开(公告)号：MY178093A

公开(公告)日：2020-10-02

申请号：MYPI2013004261

申请日：2013-11-26

Applicant: MIMOS BERHAD

Inventor： HAFIZAL BIN MOHAMAD @ DIN ,  MOHAMMAD TAHIR ,  ABDURASHID MAMADOLIMOV ,  NORDIN BIN RAMLI

Abstract: A method (200) of coalition formation for cooperative spectrum sharing in cognitive wireless networks comprising: converting a characteristic function with transferable utility to a hedonic coalition (210); generating a preference list of a partition for each pair of a coalition of the partition (210); adapting and using Gale-Shapley algorithm to obtain a permutation of coalitions (220); generating a cycle decomposition of said permutation (230); and joining coalition pairs to form a partition (240). The most illustrative drawing is FIG. 2.0.

公开(公告)号：WO2010151103A1

公开(公告)日：2010-12-29

申请号：PCT/MY2010/000101

申请日：2010-06-15

Applicant: MIMOS BERHAD ,  ABDURASHID MAMADOLIMOV ,  HERMAN ISA ,  MOESFA SOEHEILA MOHAMAD

Inventor： ABDURASHID MAMADOLIMOV ,  HERMAN ISA ,  MOESFA SOEHEILA MOHAMAD

IPC: H04L9/28 ,  H04L9/06 ,  G09C5/00 ,  H04L9/14

CPC classification number: H04L9/0618

Abstract: A method (100) for generating a bijective Substitution Box, the method (100) comprises selecting a Boolean map (102) from a plurality of non-bijective power functions and iterating extending an image of the Boolean map (104) to generate an extended Boolean map, obtaining a bijective function (106) from the extended Boolean map, performing a differential uniformity test (108) on the bijective function to obtain a differential uniformity parameter and performing a nonlinearity test (108) on the bijective function to obtain a nonlinearity parameter, until the differential uniformity parameter and the nonlinearity parameter meet a predetermined condition.

Abstract translation: 一种用于生成双射替代盒的方法（100），所述方法（100）包括从多个非双射功率函数中选择布尔映射（102），并迭代地扩展布尔映射（104）的图像以生成扩展 布尔映射，从扩展布尔图获得双射函数（106），对双射函数执行差分均匀性测试（108）以获得差分均匀性参数，并对双射函数执行非线性测试（108）以获得非线性 参数，直到差分均匀性参数和非线性参数满足预定条件。