Hamdy S. Soliman

Work place: Computer Science and Engineering Department, New Mexico Tech, Socorro NM 87801, USA

E-mail: hss@nmt.edu

Website:

Research Interests: Computer systems and computational processes, Neural Networks, Computer Architecture and Organization, Computer Networks, Information Security, Network Security, Image Processing, Data Structures and Algorithms

Biography

Prof. Hamdy S. Soliman Received his B.S. in 1978, from Alexandria University (Egypt), and his M.S. in 1983 from Florida Institute of Technology, and his Ph.D. 1989 from New Mexico State University (USA), all degrees are in Computer Science. He is currently a full Professor in the Computer Science & Engineering Department at New Mexico Tech (NMT). His research interests include Wireless Mobile sensor networks routing and security protocols, neural networks application in data/image processing, all-fiber optics networks admission control, computer and networks security, wireless security and protocols.

Author Articles
Exponential Brute-Force Complexity of A Permutation Based Stream Cipher

By Mohammed Omari Hamdy S. Soliman

DOI: https://doi.org/10.5815/ijcnis.2013.01.01, Pub. Date: 8 Jan. 2013

This paper introduces a permutation generation mechanism based on a shared secret key. The generated permutation vectors are used as encryption keys in a stream ciphering cryptosystem. We investigated various types of attacks on the known stream cipher RC4 and patched most of its loopholes, especially biased-byte and state-related attacks. Unique to our approach, we prove mathematically that the complexity of brute-forcing such a system is (2n), where n is the key size in bytes. This paper also presents a complete security model using permutation-based encryption, in order to handle privacy. In addition, our approach achieved higher performance than that of existing peer techniques, while maintaining solid security. Experimental results show that our system is much faster than the existing security mechanisms, such as AES and DES.

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