Thursday 23rd of November 2017
 

An End-to-End Secure Mail System Based on Certificateless Cryptography in the Standard Security Model


Mohammed Hassouna, Nashwa Mohamed, Bazara Barry and Eihab Bashier

Most of the existing mailing systems provide limited authentication mechanisms, including web trust model, password authentication or identity based cryptography. Few existing mailing systems found in the literature provide strong authentication based on public key infrastructure (PKI). However, PKI based-systems generally suffer from certificate management and scalability problems. This paper proposes a mailing system that is based on certificeteless cryptography. In the proposed mailing system the message payload is encrypted by a per-mail symmetric key generated from a secret value, the public and private keys of the sender and the receiver at each side. The proposed mailing system is secure against standard security model and provides many security properties.

Keywords: Authentication, Certificateless cryptography, Mailing systems, Security model.

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ABOUT THE AUTHORS

Mohammed Hassouna
received his BS.c (honors degree) in mathematics and computer sciences from Faculty of Mathematical and Computer Science, University of Gezira, Sudan in 2007, and his MS.c in Industrial and Computation Mathematic from the Faculty of Mathematical Science, University of Khartoum, Sudan in 2009. Currently, he is registered as a PhD student at the Department of Computer Science â Faculty of Mathematical Science â University of Khartoum. Mohammed is a lecturer and IT Manager at the Faculty of Computer Studies, National Ribat University, Sudan. He is also working as researcher in a Cryptography unit at the Mathematical Sciences and Information Technology Research Unit at University of Khartoum since 2008, his basic research interest is Cryptography and he published a journal and a conference paper in that field.

Nashwa Mohamed
received her B.Sc (honors degree) in mathematics and computer sciences in 2001, her M.Sc in Induastrial and Computational Mathematics in 2004 and her Phd in Mathematics in 2012 from University of Khartoum, Sudan. She is currently working as an assistant professor at the University of Khartoum and the head of the department of Pure Mathematics at the same institute. Also she is working as researcher in a Cryptography unit at the Mathematical Sciences and Information Technology Research Unit at University of Khartoum.

Bazara Barry
received his Computer Science B.Sc. and M.Sc. degrees in 2001 and 2004 respectively from University of Khartoum, Sudan and his PhD in Electrical Engineering from University of Cape Town, South Africa in 2009. He is currently an assistant professor at University of Khartoum and the head of the department of Computer Science at the same institute. Bazara has served as TPC chair, co-chair, and member at local and international workshops/conferences in computing and engineering, and a reviewer for international journals in information security. In 2011, he received the best paper in session award at IMCIC in Orlando, Florida, USA and the Honor Award in Zayed University competition in IT. He headed the Mathematical Sciences and Information Technology Research Unit at University of Khartoum which carried out research projects for the university and its partners. He has over 10 years of experience in IT industry leading and directing projects, and is a certified Project Management Professional (PMP)®. Bazara is a member of the Institute of Electrical and Electronics Engineers (IEEE) and the Project Management Institute (PMI).

Eihab Bashier
graduated from the University of Khartoum in 1999 with a joint degree in mathematics and computer sciences. In the years 2002 and 2004 he did his Master and postgraduate diploma in industrial and computational mathematics and mathematical sciences from the University of Khartoum and the African Institute for Mathematical Sciences (South Africa), respectively. In 2009 he obtained his PhD (numerical analysis) from the University of the Western Cape, South Africa. Then he joined the University of Khartoum as an assistant professor in applied mathematics. He also led the cryptography research groups in both the University of Khartoum and the Nile centre for technology research from 2009 to 2012. Currently, he is working as an assistant professor at Albaha University, Saudi Arabia.


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