Iraqi Journal for Computers and Informatics http://ijci.uoitc.edu.iq/index.php/ijci <p>Iraqi Journal for Computers and Informatics is an open access ,double-blind peer reviewed, international academic journal published biannual (since 2017). It is institutional journal issued by the University of Information Technology and Communications (UoITC) in Baghdad- Iraq; UoITC is one of governmental universities which established by the Ministry of Higher Education in Iraq. IJCI aims to contribute to the constant scientific research and to provide a sober scientific journal that enriches scholars around the world and it deals with all aspects of computer science.</p> University of Information and Technology Communications en-US Iraqi Journal for Computers and Informatics 2313-190X <p>IJCI applies the Creative Commons Attribution (CC BY) license to articles. The author of the submitted paper for publication by IJCI has the CC BY license. Under this Open Access license, the author give an agreement to any author to reuse the article in whole or part for any purpose, even for commercial purposes. Anyone may copy, distribute, or reuse the content as long as the author and original source are properly cited. This facility helps in re-use and ensures that journal content is available for the needs of research.&nbsp;<br>If the manuscript contains photos, images, figures, tables, audio files, videos, etc., that the author or the co-authors do not own, IJCI will require author to provide the journal with proof that the owner of that content has given the author written permission to use it, and the owner has approved that the CC BY license being applied to content. IJCI provides a form that author can use to ask for permission from the owner. If the author does not have owner permission, IJCI will ask author to remove that content and/or replace it with other content that the author own or have such permission to use.&nbsp;<br>Many authors assume that if they previously published a paper through another publisher, they have the rights to reuse that content in their PLOS paper, but that is not necessarily the case – it depends on the license that covers the other paper. Author must ascertain the rights he/she has of a specific license (a license that enables author to use the content). Author must obtain a written permission from the publisher to use the content in IJCI paper. Author should not include any content in her/his IJCI paper without having the rights to use, and always give proper attribution.&nbsp;<br>The accompanying submitted data should be stated with licensing policies, the policies should not be more restrictive than CC BY.&nbsp;<br>IJCI has the right to remove photos, captures, images, figures, tables, illustrations, audio and video files, from a paper before or after publication, if these contents were included in author paper without permission from the owner of the content.&nbsp;</p> ANEW TECHNIQUE BY USING INVERTED TABLES AND 3D BOX FOR EFFICIENT QUERYING OVER AN ENCRYPTED DATABASE http://ijci.uoitc.edu.iq/index.php/ijci/article/view/258 <p>The increase in the amount of data in encrypted databases has caused problems in data processing and retrieval time. In traditional query processing methods, there are many difficulties in execute query over an encrypted database because it is time- consuming. In this paper, proposes technique for querying encrypted databases records, allows authorized users to execute queries without decrypting all the records of the encrypted database. In this technique, inverted tables include the numbers of 3D box cover locations that were created to enhance and speed up the retrieval time of query and improve an approach of data embedding according to the random 3D box. The proposed method has been examined on the Iraqi voter encrypted Database. The retrieval time in (second, millisecond) has been computed for the traditional method of query processing and proposed technique that using inverted tables. The retrieval time of query executing of proposed techniques without retrieval of all the records of the encrypted database is 10.870 (seconds, millisecond) where the retrieval time of query executing of conventional method that’s retrieval of all the records of the encrypted database is 40.682 (seconds, millisecond).</p> Atheer Metaab Al Abbassi Abdul Monem S. Rahman Nidaa F. Hassan Copyright (c) 2020 http://creativecommons.org/licenses/by-nc-nd/4.0 2020-12-01 2020-12-01 46 2 1 5 ENCRYPTION THREE-DIMENSION IMAGE USING TINY ALGORITHM http://ijci.uoitc.edu.iq/index.php/ijci/article/view/259 <p>The development of systems allows providing the capability of using three-dimension (3D) pictures over the internet especially in social media. In previous years, animation pictures and videos are not used in the internet due to the sizes of these two data and need the huge amount of data to work over internet and need supporting program to deal with presenting the data to the users of the internet in either websites or social media. Most of the security over internet used on ciphering text or ciphering images but not cipher video or 3D picture because video and 3D pictures are not used until recently. The huge use of these two types 3D pictures and videos in recent years. It is become an urgent necessary to encrypt these sorts of data. The research will focus on encrypting these types of data by using special algorithm called as Tiny Encryption Algorithm (TEA). This algorithm will be used to encrypt and decrypt 3D pictures and protecting the privacy of this sort of data. The research shows the how-to encode and decode of 3D picture and how to deal with them. The results show the TEA is rapid algorithm in the coding picture and decoding 3D pictures. it is only needing a few portions of time to cipher and decipher 3D pictures. The program that used to test the ciphering and deciphering algorithm was based on MATLAB.</p> Noor Hayder Abdul Ameer Zahraa Faiz Hussain May Sabri Mohammed Copyright (c) 2020 http://creativecommons.org/licenses/by-nc-nd/4.0 2020-12-01 2020-12-01 46 2 6 11