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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/15376

Title: Secure Instant Messaging Protocol for Centralized Communication Group
Authors: Mohamed Hamdy Eldefrawy
Khaled Alghathbar
Muhammad Khurram Khan
Keywords: IM, IFP
Issue Date: 2011
Abstract: Nowadays, instant messaging (IM) represents the most used messaging service for both home and corporate users. IM is used in many different application fields. Thus, it is an effective and easy means of network-based communication. Unfortunately, this technology does not provide built-in support for security features. This paper proposes a new and secure instant messaging protocol for a centralized communication group. This protocol utilizes the ElGamal cryptosystem, RSA algorithm, and Chinese Remainder Theorem (CRT.) CRT takes the responsibility of renewing the users' private keys. The intractability of the new algorithm depends on the integer factorization problem (IFP) and the discrete logarithm problem (DLP.) We show that our proposed scheme satisfies expected security requirements
URI: http://hdl.handle.net/123456789/15376
Appears in Collections:College of Computer and Information Sciences

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