Sarab M. Hameed

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Proliferation of network systems and growing usage of Internet make network security issue to be more important. Intrusion detection is an important factor in keeping network secure. The main aim of intrusion detection is to classify behavior of a system into normal and intrusive behaviors. However, the normal and the attack behaviors in networks are hard(More)
Digital image inpainting is a technique that can repair a portion of damaged or removed image by means of automatic mechanisms. This paper proposes an automatic approach for reconstruction of small missing or damaged portions of images using Particle Swarm Optimization (PSO). The PSO inpainting approach attempts to find the best match between Red, Green,(More)
Transposition ciphers are a class of historical encryption algorithms based on rearranging units of plaintext according to some fixed permutation which acts as the secret key. This paper presents a new investigation for cryptanalysis transposition cipher based on Particle Swarm Optimization (PSO). PSO is utilized for the automatic recovery of the key, and(More)
This paper adopts the security problem of distributed agent system by providing a Secure Distributed Agents System Framework (SDASF). SDASF satisfy security by decorating the agent with an authorization certificate called Simple Public Key Infrastructure (SPKI). Remote Method Invocation (RMI) mechanism is used as a communication mechanism between agents.(More)
Computer systems and networks are being used in almost every aspect of our daily life, the security threats to computers and networks have increased significantly. Usually, password-based user authentication is used to authenticate the legitimate user. However, this method has many gaps such as password sharing, brute force attack, dictionary attack and(More)
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