{"title":"Modification Advanced Encryption Standard for Design Lightweight Algorithms","authors":"Mustafa M. Abd Zaid","doi":"10.31642/JOKMC/2018/060104","DOIUrl":"https://doi.org/10.31642/JOKMC/2018/060104","url":null,"abstract":"The acknowledgment of IoT requires a colossal measure of sensor hubs which have limited battery power, memory, computational latency and communication bandwidth to obtain contributions from the associated objects. In the current developments of the resource constraint environments, the trend is shifted towards lightweight cryptographic algorithm. Many lightweight cryptographic algorithms have been developed and also existing algorithms are modified in terms of resource constraint environment. In this paper we analyzed a very popular block cipher AES-128 and tried to make it lightweight regarding energy consumption. In modified AES algorithm an execution of the AES mix columns operation is proposed, combine the add round - key operation with mix - columns to perform in one cycle, the shift - row operation has been modified to shift - rows and shift - columns and reduction in number of rounds to 6 rounds only for modified AES and compare the results of standard algorithm and modified algorithms. The proposed algorithms passed the statistical test suite, also the new algorithms faster than standard AES in term of implementation. In security term the modified algorithm for 6 round has more confusion and diffusion percent because of the modified in mix-columns and shift-rows operations.","PeriodicalId":115908,"journal":{"name":"Journal of Kufa for Mathematics and Computer","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126638689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Fatnan, Z. M. Hussain, Hind Rostom Mohammed, Najaf, Iraq.
{"title":"A Modified JadeR for Signal Separation under Gaussian Noise","authors":"M. Fatnan, Z. M. Hussain, Hind Rostom Mohammed, Najaf, Iraq.","doi":"10.31642/JOKMC/2018/050304","DOIUrl":"https://doi.org/10.31642/JOKMC/2018/050304","url":null,"abstract":"A Modified version of Joint Approximation Diagonalization Estimation of Real Signals algorithm (JADER) is proposed to enhance efficiency and speed of Blind Signal Separation (BSS). MJADER based on the mixture's dimensions minimization step, where the cumulant matrices have been estimated using a reduced-dimension observed mixture. The approach (M-JADER) is based on a threshold step, it is easy to implement, computationally efficient and faster than standard JADER about 50% where it has less running time. The comparison done under tow types of niose(semi-white Gaussian noise and Uniform noise)","PeriodicalId":115908,"journal":{"name":"Journal of Kufa for Mathematics and Computer","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132409164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On a Differential Subordination of a Certain Subclass of Univalent Functions","authors":"Aqeel AL-khafaji, W. Atshan, S. Abed","doi":"10.31642/JOKMC/2018/050302","DOIUrl":"https://doi.org/10.31642/JOKMC/2018/050302","url":null,"abstract":"","PeriodicalId":115908,"journal":{"name":"Journal of Kufa for Mathematics and Computer","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132093101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Coefficient Bounds and Fekete-Szego inequalities for A class of Bazilevic type functions associated with new differential operator","authors":"A. Juma, M. S. Abdulhussain, S. N. Al-khafaji","doi":"10.31642/JOKMC/2018/050301","DOIUrl":"https://doi.org/10.31642/JOKMC/2018/050301","url":null,"abstract":". We generalized a class of Bazilevic type functions as defined in the open unit disk associated with a differential operator satisfying some subordination conditions. As well as, we obtained coefficient bounds and Fekete Szego bounds for functions in this subclass.","PeriodicalId":115908,"journal":{"name":"Journal of Kufa for Mathematics and Computer","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114663589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"ZT2 space and semi-ZT2 space","authors":"A. M. Hamza, Z. Hameed","doi":"10.31642/JOKMC/2018/050305","DOIUrl":"https://doi.org/10.31642/JOKMC/2018/050305","url":null,"abstract":"","PeriodicalId":115908,"journal":{"name":"Journal of Kufa for Mathematics and Computer","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126209950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Near-Legendre Differential Equations","authors":"Adel A. Abdelkarim","doi":"10.31642/jokmc/2018/050303","DOIUrl":"https://doi.org/10.31642/jokmc/2018/050303","url":null,"abstract":"","PeriodicalId":115908,"journal":{"name":"Journal of Kufa for Mathematics and Computer","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124495268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On Harmonic Index of Some Special Graphs with Certain Vertex Gluing Graphs","authors":"Haneen Aljanabi","doi":"10.31642/JOKMC/2018/050202","DOIUrl":"https://doi.org/10.31642/JOKMC/2018/050202","url":null,"abstract":"The stability of cycloalkanes strain energy, branched alkanes and linear alkanes, can be reasonably modeled using the harmonic index (H), which is commonly defined as ( ) ∑ ( ) ( ) where d(u) denotes the vertex degree of u in graph G. In the current work, public equation is derived to the H index of vertex gluing and certain graphs.","PeriodicalId":115908,"journal":{"name":"Journal of Kufa for Mathematics and Computer","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128491038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Taylor Galerkin Pressure Correction (TGPC) Finite Element Method for Incompressible Newtonian Cable-Coating Flows","authors":"A. Al-Muslimawi","doi":"10.31642/JOKMC/2018/050203","DOIUrl":"https://doi.org/10.31642/JOKMC/2018/050203","url":null,"abstract":"Received May. 23, 2018. Accepted for publication Jun. 28, 2018 DOI: http://dx.doi.org/10.31642/JoKMC/2018/050203 AbstractBased on Taylor Galerkin /pressure-correction (TGPC) finite element method, this work is concerned with numerical study for incompressible Newtonian cable coating flows. The fluid motion is described by using the Naiver-Stoke equations, which include two essential differential equations. One of them is the equation for conservation of mass and the other one is the equation of conservation of momentum equations. Moreover, this study shows the free surface location methodology to determine the free surface position, and the boundary conditions. The Phan-Thien (dh/dt) scheme is applied to calculate the change in the freesurface position. A number of computational investigations have been achieved to see the effect of different factors on the processing of coating. This includes investigating the influence of variation in surface tension on the shear rate and strain-rate stabilisation approach.","PeriodicalId":115908,"journal":{"name":"Journal of Kufa for Mathematics and Computer","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123771723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Study of the Existence and Uniqueness of Global Solution for the Fractional Second Order Nonlinear Integro –Differential Equations with Boundary Conditions","authors":"Ammar I. Edress, Minerals","doi":"10.31642/jokmc/2018/050201","DOIUrl":"https://doi.org/10.31642/jokmc/2018/050201","url":null,"abstract":"In this paper, the existence of the global solution and its uniqueness is studied for the Second Order Nonlinear Integro–Differential Fractional Equations with boundary conditions by utilizing the Picard approximation method which is given by Sturble, 1962. Furthermore, several given results by Butris, 2010 have been extended. Keywords— Differential Equations, Fractional Second Order Nonlinear Integro –Differential Equations","PeriodicalId":115908,"journal":{"name":"Journal of Kufa for Mathematics and Computer","volume":"310 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122779626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A classical approach for hiding encryption key in the same encrypted text document","authors":"T. S. Obaid, Mohammed J. Khami","doi":"10.31642/jokmc/2018/050104","DOIUrl":"https://doi.org/10.31642/jokmc/2018/050104","url":null,"abstract":"","PeriodicalId":115908,"journal":{"name":"Journal of Kufa for Mathematics and Computer","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128238355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}