Quist-Aphetsi Kester

Work place: Faculty of Informatics Ghana Technology University College Accra, Ghana

E-mail: kquist-aphetsi@gtuc.edu.gh

Website:

Research Interests: Computer Architecture and Organization, Image Compression, Image Manipulation, Information Security, Network Architecture, Image Processing

Biography

Quist-Aphetsi Kester, MIEEE is a global award winner 2010 (First place Winner with Gold), in Canada Toronto, of the NSBE’s Consulting Design Olympiad Awards and has been recognized as a Global Consulting Design Engineer. Currently, he is the national chair for Policy and Research Internet Society (ISOC) Ghana Chapter, a world renowned body that provides international leadership in Internet related standards, education, and policy. He is the Chairman forthe Centre of Research, Information Technology and Advanced computing-CRITAC. He is a law student at the University of London UK. He is a PhD Candidate in Computer Science. The PhD program is in collaboration between the AWBC/ Canada and the Department of Computer Science and Information Technology (DCSIT), University of Cape Coast. He had a Master of Software Engineering degree from the OUM, Malaysia and BSC in Physics from the University of Cape Coast-UCC Ghana. He has worked in various capacities as a peer reviewer for IEEE ICAST Conference, IET-Software Journal, lecturer, Head of Digital Forensic Laboratory Department at the Ghana Technology University and Head of Computer science department. He is currently a lecturer at the Ghana Technology University College and He may be reached at kquistaphetsi@gtuc.edu.gh/kquist@ieee.org

Author Articles
Image Encryption based on the RGB PIXEL Transposition and Shuffling

By Quist-Aphetsi Kester

DOI: https://doi.org/10.5815/ijcnis.2013.07.05, Pub. Date: 8 Jun. 2013

Privacy is one of the key issues information Security addresses. Through encryption one can prevent a third party from understanding raw data during signal transmission. The encryption methods for enhancing the security of digital contents has gained high significance in the current era of breach of security and misuse of the confidential information intercepted and misused by the unauthorized parties.
This paper sets out to contribute to the general body of knowledge in the area of cryptography application and by developing a cipher algorithm for image encryption of m*n size by shuffling the RGB pixel values. The algorithm ultimately makes it possible for encryption and decryption of the images based on the RGB pixel. The algorithm was implemented using MATLAB.

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Integration of Independent Applications and EAI Systems using Service Oriented Enterprise Bus and Open System Application Development Standards

By Quist-Aphetsi Kester Koumadi Koudjo M Nii.Narku Quaynor

DOI: https://doi.org/10.5815/ijitcs.2013.07.01, Pub. Date: 1 Jun. 2013

Businesses today are dependent on custom enterprise software and web applications from independent software developers and software companies. This creates a lot of problems such as integration, interoperability, security, and system maintenance. Enterprise Application Integration (EAI) and Business-to-Business integration control several key technologies and swift advancement in technology to meet the increasing needs for integration in the enterprise which often results in a lot of challenges due to differences between one proprietary approach and another. This paper seeks to provide an approach of integrating independent applications and EAI systems by using Web services standards and open application development standards in dealing with the challenges faced in integrating applications. This will make it possible for organizations to add a new layer of abstraction that is open, standards-based, and easy to integrate with any new or existing system and also make easy for data discovery as well as building of new concepts from existing data. The combination of Service Oriented Architecture and Web services will be used to provide a rapid integration solution and also publishing services in a manner that new concepts can easily be built from existing services.

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Using Web Services Standards for Dealing with Complexities of Multiple Incompatible Applications

By Quist-Aphetsi Kester Ghartey Nana Gyankumah Ajibade Ibrahim Kayode

DOI: https://doi.org/10.5815/ijitcs.2012.11.05, Pub. Date: 8 Oct. 2012

Organizations’ dependence on custom enterprise software and web applications from independent software developers and software companies create a lot of problems such as integration, interoperability, security, and system maintenance. This paper seeks to provide a better approach by using Web services standards in dealing with the complexity of multiple incompatible applications that were written in different programming languages on multiple computers and also making it possible for organizations to add a new layer of abstraction that is open, standards-based, and easy to integrate with any new or existing system. The combination of Service Oriented Architecture and Web services will be used to provide a rapid integration solution that will quickly and easily align Information Technology investments and corporate strategies by focusing on shared data and reusable services rather than proprietary integration products.

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