Browsing by Author "Seman K."
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Publication Agent verification protocol in agent-based IDS(2008) ;Nasir L.M. ;Seman K. ;Saudi M.M. ;Faculty of Science and TechnologyUniversiti Sains Islam Malaysia (USIM)Agent-based IDS is a powerful technique used by network administrator to monitor traffic activities in their network. However, the widespread network coverage has introduced a possibility of a hacker installing unauthorized agents or fake agents secretly within the network. This is considered as a very serious threat to the network security. This paper proposes a protocol that is used to detect the presence of a fake agent upon its installation. The technique is a combination of Elgamal encryption, Elgamal digital signature, and SHA-I message digest function. A simple implementation was developed to test the proposed protocol. � 2008 IEEE. DOI 10.1109/CIT.2008.Workshops.122. - Some of the metrics are blocked by yourconsent settings
Publication Cell drop threshold architecture for multi-class shared buffer with finite memory size(2011) ;Abdul Rahman A.A. ;Seman K. ;Saadan K. ;Samingan A.K. ;Azman A. ;Faculty of Science and Technology ;Telekom Research and Development ;Universiti Sains Islam Malaysia (USIM)Universiti Putra Malaysia (UPM)Shared buffer is commonly used to utilize the buffer in the switch. In order to minimize the cell lost of high class traffic in multi-class switch, the threshold is set to drop the low class cells in the shared buffer. This will give more space to accommodate the high class traffic cells. In this paper, we analyse the performance of shared buffer with different threshold settings. The multi-class shared buffer architecture is developed for 16x16 ports switch, which is targeted for Xilinx FPGA implementation. The performance of the multi-class shared buffer switch is analysed in term of the achievable throughput as well as the drop probability. Based on the simulation with different threshold settings, it is observed that the optimum selection of cell drop threshold depends on the size of the shared buffer that triggers the RAM threshold. � 2011 IEEE. - Some of the metrics are blocked by yourconsent settings
Publication Correlated topology control algorithm for survival network in MANETS(Springer Verlag, 2016) ;Azni A.H. ;Ahmad R. ;Seman K. ;Alwi N.H.M. ;Noh Z.A.M. ;Universiti Sains Islam Malaysia (USIM)University Technical Malaysia Melaka (UTeM)This paper proposed a new correlated topology control (CTC) algorithm to achieve optimal survival networks topology under correlated node behavior. CTC algorithm enable every node to selects its own neighbors with highly correlated cooperative node dynamically. To select neighbors, measurement scheme of correlated node cooperativity is proposed to determine misbehave node and critical node. The scheme will check on correlated degree of neighboring nodes for any misbehave node and at the same time will check if the removal of node cause network to partition. In the case if nodes removal will partition the network, a new reconstruction scheme LNL is proposed to reconnect the broken link. The simulation results show that CTC algorithm can prolong node lifetime and maintain generated survival network topology. Besides that, the algorithm successfully prevented correlated event from misbehave node and network partitioning from isolated node. Further, it is also shown that as energy consumption decreased, network performance especially packet forwarding can be significantly improved and network survivability is optimally achieved. � Springer International Publishing Switzerland 2016. - Some of the metrics are blocked by yourconsent settings
Publication Defending worms attack through EDOWA system(2008) ;Saudi M.M. ;Tamil E.M. ;Idris M.Y.I. ;Seman K. ;Nasir L.M. ;Faculty of Science and TechnologyUniversiti Sains Islam Malaysia (USIM)EDOWA system is a system that is capable to detect worm efficiently and provide an early warning to the system administrator. Worms are a major threat to Internet-connected hosts and networks and their nature of widespread epidemic spread needed to be detected quickly in order to contain its outbreak. In EDOWA, the frequency of network packet will be observed by the system. The wide spreading nature of worm will cause the network packet to be transfer massively over the network and cause the substantial increase in frequency. The threshold that detects the worm activity pattern will adjust accordingly to the increase of network traffic to accommodate high speed large network traffic. By having this threshold adjust accordingly, it will increase worm detection efficiency. With fuzzy logic, the degree of urgency of a warning can be defined. � 2008 IEEE. - Some of the metrics are blocked by yourconsent settings
Publication The effect of total bits and number of LFSRs on the hardware performance of modified A5/1 stream ciphers(American Scientific Publishers, 2017) ;Fauzi S.Y.A.B.M. ;Othman M. ;Shuib F.M.M. ;Seman K. ;Faculty of Engineering and Built Environment ;Faculty of Science and TechnologyUniversiti Sains Islam Malaysia (USIM)This paper is a study on the hardware implementation of the modified A5/1 stream cipher used for Global System for Mobile (GSM) communication. While software simulation is one of the possible methods used to test the security of the cryptographic algorithm, one must also consider the practicality of the algorithm�s design which ultimately is to be implemented into hardware, in line with the exponential increase in the need for high speed and high performance devices. Despite the numerous work reported on the design versus security trade-off of the A5/1, to the best of the author�s knowledge, none looked at the effect of the modified design parameters, specifically the total bits and number of linear feedback shift registers (LFSRs) on the power performance of the algorithm when translated into hardware. In this work, three modified designs, with varying number of LFSRs and total bits are looked at. An increase in the number of LFSRs is observed to result in the highest power consumption, while the combination of both increased total bits and LFSRs reduced this need for power slightly. It has been found that an increase in the number of total bits alone gave the best hardware performance overall. � 2017 American Scientific Publishers All rights reserved. - Some of the metrics are blocked by yourconsent settings
Publication Enhanced TCPW's fast retransmission and fast recovery mechanism over high bit errors networks(Institute of Electrical and Electronics Engineers Inc., 2015) ;Al-Hasanat M. ;Seman K. ;Saadan K. ;Faculty of Science and TechnologyUniversiti Sains Islam Malaysia (USIM)In this paper we introduced two enhancement modifications to the well-known TCP Westwood fast retransmission and fast recovery mechanisms. Firstly, a new modification is introduced to fasten the fast retransmission procedure by preventing the TCP sender side from waiting the third duplicate ACKs to retransmit lost packets. Secondly, further modification is presented to achieve better recovery for the congestion window size in the fast recovery phase based on last round trip time and bandwidth estimation. The two modifications are implemented and evaluated using ns-3 simulator. We compared the throughput and congestion window size of the new proposed modifications to TCPW and NewReno. As a result, the proposed algorithm has shown significant improvement over the two implementations. � 2015 IEEE. - Some of the metrics are blocked by yourconsent settings
Publication Hybrid of rough set theory and Artificial Immune Recognition System as a solution to decrease false alarm rate in intrusion detection system(2011) ;Sabri F.N.M. ;Norwawi N.M. ;Seman K. ;Faculty of Science and TechnologyUniversiti Sains Islam Malaysia (USIM)Denial of Service (DoS) attacks is one of the security threats for computer systems and applications. It usually make use of software bugs to crash or freeze a service or network resource or bandwidth limits by making use of a flood attack to saturate all bandwidth. Predicting a potential DOS attacks would be very helpful for an IT departments or managements to optimize the security of intrusion detection system (IDS). Nowadays, false alarm rates and accuracy become the main subject to be addressed in measuring the effectiveness of IDS. Thus, the purpose of this work is to search the classifier that is capable to reduce the false alarm rates and increase the accuracy of the detection system. This study applied Artificial Immune System (AIS) in IDS. However, this study has been improved by using integration of rough set theory (RST) with Artificial Immune Recognition System 1 (AIRS1) algorithm, (Rough-AIRS1) to categorize the DoS samples. RST is expected to be able to reduce the redundant features from huge amount of data that is capable to increase the performance of the classification. Furthermore, AIS is an incremental learning approach that will minimize duplications of cases in a knowledge based. It will be efficient in terms of memory storage and searching for similarities in Intrusion Detection (IDS) attacks patterns. This study use NSL-KDD 20% train dataset to test the classifiers. Then, the performances are compared with single AIRS1 and J48 algorithm. Results from these experiments show that Rough-AIRS1 has lower number of false alarm rate compared to single AIRS but a little bit higher than J48. However, accuracy for this hybrid technique is slightly lower compared to others. � 2011 IEEE. - Some of the metrics are blocked by yourconsent settings
Publication Implementation of multi-class shared buffer with finite memory size(2011) ;Rahman A.A.A. ;Seman K. ;Saadan K. ;Azman A. ;Faculty of Science and Technology ;Telekom Research and Development ;Universiti Sains Islam Malaysia (USIM)Universiti Putra Malaysia (UPM)High packet network have become an essential in modern multimedia communication. Shared buffer is commonly used to utilize the buffer in the switch. In this paper, we analyse the performance of shared buffer with different memory sizes. The architecture of the multi-class shared buffer is developed for 16x16 ports switch that is targeted in Xilinx FPGA. The performance of the multi-class shared buffer switch is analysed in term of throughput and mean delay. Based on the simulation with different memory sizes, it is observed that the optimum selection of memory size under uniform traffic depends on the maximum traffic load of the switch. � 2011 IEEE. - Some of the metrics are blocked by yourconsent settings
Publication Improved models of internet charging scheme of single bottleneck link in multi QoS networks(2013) ;Puspita F.M. ;Seman K. ;Taib B.M. ;Shafii Z.Universiti Sains Islam Malaysia (USIM)Internet Service Providers (ISPs) nowadays deal with high demand to promote good quality information. However, the knowledge to develop new pricing scheme that serve both customers and supplier is known, but only a few pricing plans involve QoS networks. This study will seek new proposed pricing plans are offered with QoS networks involved. The single link multi QoS Networks scheme is solved as an optimization model by comparing two models in multi QoS networks. The decisions whether to set up base price to be fixed to recover the cost or to be varied to compete in the market are considered. Also, the options of quality premium to be fixed to enable user to choose classes according to their preferences and budget or to be varied to enable ISP to promote certain service are set up. � 2013 Asian Network for Scientific Information. - Some of the metrics are blocked by yourconsent settings
Publication An improved optimization model of internet charging scheme in multi service networks(Universitas Ahmad Dahlan, 2012) ;Seman K. ;Puspita F.M. ;Taib B.M. ;Shafii Z. ;Faculty of Economics and Muamalat ;Faculty of Science and TechnologyUniversiti Sains Islam Malaysia (USIM)This article will analyze new improved charging scheme with base price, quality premium and QoS networks involved. Sain and Herpers [5] already attempted to obtain revenue maximization by creating charging scheme of internet. The plan is attempted to solve multi service networks scheme as an optimization model to obtain revenue maximization using our improved model based on Byun and Chatterjee [2] and Sain and Herpers [5]. The results show that improved model can be solved optimally using optimization tool LINGO to achieve better revenue maximization. Better results are obtained in all cases rather than in [5]. The advantage of our new model is that ISP also can set up their base price and quality premium based on ISP preferences. For some cases for getting revenue maximization, we do not offer one service and just utilize some of the services. - Some of the metrics are blocked by yourconsent settings
Publication Linear hybrid cellular automata (LHCA) rule 90/150 based S-box(Blue Eyes Intelligence Engineering and Sciences Publication, 2019) ;Roslan M.F. ;Seman K. ;Halim A.H.A. ;Md Sayuti M.N.A.Universiti Sains Islam Malaysia (USIM)Most modern block cipher today comprises of single nonlinear element which is called as substitution box. It comes with various of size depending on the cipher input and the secret key. Various methods have been proposed in order to construct it. In this paper, a new construction method has been proposed that is based on linear hybrid cellular automata (LHCA) iteration. There are specific number of combinations of rule 150 and rule 90 of elementary cellular automata (ECA) with two states and three neighborhoods that generate maximum cycle sequence which usually adapted as pseudo random number generator. However, the sequence is actually the permutation of finite elements which is suitable for the S-Box construction. Within this paper context, we manipulate the sequence by varying the initial condition to produce about 8192 different S-Box with different security level from 32 different rule combination. The maximum nonlinearity that we could achieve is 108 with differential uniformity value of 8. � BEIESP. - Some of the metrics are blocked by yourconsent settings
Publication Measuring sensor to cloud energy consumption(Association for Computing Machinery, 2017) ;Azni A.H. ;Rahman A.F.A. ;Alwi N.H.M. ;Seman K. ;Faculty of Science and TechnologyUniversiti Sains Islam Malaysia (USIM)IoT devices must provide seamless connectivity while obeying stringent power and size constraints. Power consumption plays important factor to determine the status and connectivity of Sensor Node. This paper describes a series of simple experiments which measure the energy consumption of two IoT Sensor Nodes transmitting data to the cloud. The experiments will be used to compare the best solution between wire and wireless for IoT Sensor Nodes implementation. The experimental result shows that wireless connection consume more power compared to wire connection. Apart from comparison of two methods, the goal of this paper is also to develop a solid experimental basis, thus setting a better foundation for future research on IoT Sensor Nodes. � 2017 ACM. - Some of the metrics are blocked by yourconsent settings
Publication Multi-class scheduling technique using dual threshold(2010) ;Rahman A.A.A. ;Seman K. ;Saadan K. ;Faculty of Science and Technology ;Telekom Research and DevelopmentUniversiti Sains Islam Malaysia (USIM)Future network should be able to handle many types of traffic such as video conferencing, audio and data transfer. Each of this traffic has specified Quality of Service (QoS). It is crucial for the switch design to guaranteed QoS for all applications. In this paper, a new ways of handling multi-class traffic is presented. The analysis is done on N x N switch with two traffic classes, high priority for delay sensitive cells and low priority for loss sensitive cells. To avoid starvation problem in low priority class, a novel approach have been introduced in the scheduling technique. By applying dual threshold setting, a better control on priority setting for both classes can be achieved. The threshold value is set based on the waiting time and threshold serving probability value. The proposed method has been simulated to show that the starvation problem can be overcome. - Some of the metrics are blocked by yourconsent settings
Publication A new spatio-temporal background–foreground bimodal for motion segmentation and detection in urban traffic scenes(Springer London, 2019) ;Al-Smadi M. ;Abdulrahim K. ;Seman K. ;Salam R.A. ;Faculty of Engineering and Built Environment ;Faculty of Science and TechnologyUniversiti Sains Islam Malaysia (USIM)Automatic vehicle detection in urban traffic surveillance is an important and urgent issue, since it provides necessaryinformation for further processing. Conventional techniques utilize either motion segmentation or appearance-baseddetection, which involves either poor adaptation or high computation. The complexity of urban traffic scenarios lies in slowmotion temporarily stopped or parked vehicles, dynamic background, and sudden illumination variations. In this paper, anew motion segmentation technique is proposed based on spatio-temporal background–foreground bimodal. The temporalbackground information is modeled using a weighted sigma–delta estimation, cumulative frame differencing is used tomodel the foreground pixels, and the spatial correlation between neighboring pixels is utilized to combine both backgroundand foreground models. The median of consecutive frame difference adapts sudden illumination variation, update back-ground model, and reinitialize foreground model. Comparative experimental results for typical urban traffic sequencesshow that the proposed technique achieves robust and accurate segmentation, which improves adaptation, reduce falsedetection, and satisfy real-time requirements. KeywordsMotion segmentation-Background subtraction-Cumulative frame differencing-Sigma–delta filter-Vehicle detection - Some of the metrics are blocked by yourconsent settings
Publication On selected issues of Boolean function application in symmetric key cryptography against side channel attacks(Institute of Physics Publishing, 2019) ;Seman K. ;Roslan M.F. ;Ab Halim A.H. ;Syam Mohd Sayuti M.N.A ;Faculty of Science and Technology ;Faculty of Engineering and Built EnvironmentUniversiti Sains Islam Malaysia (USIM)Boolean function plays a prominent role in building strong cryptography algorithm especially in symmetric block cipher. However, there may be some issues and conflicting criteria which prevent such a Boolean function to resist the algorithm to all known attacks. Within this work, the nonlinearity and correlation immunity issues of Boolean function is discussed followed by complementary counter measure against side channel attack especially differential power attack (DPA) - Some of the metrics are blocked by yourconsent settings
Publication On the symbolic manipulation for the cardinality of certain degree polynomials(American Institute of Physics Inc., 2016) ;Abdullah I. ;Seman K. ;Taib B.M. ;Puspita F.M. ;Faculty of Science and Technology ;Universiti Sains Islam Malaysia (USIM)University of SriwijayaThe research on cardinality of polynomials was started by Mohd Atan [1] when he considered a set, V(f-;p?)={umodp?:f-(u)?0modp?}, where ? > 0 and f-=(f1,f2,?fn). The term f-(u)?0-modp? means that we are considering all congruence equations of modulo p? and we are looking for u that makes the congruence equation equals zero. This is called the zeros of polynomials. The total numbers of such zeros is termed as N(f-;p?). The above p is a prime number and Zp is the ring of p-adic integers, and x-=(x1,x2, ?xn). He later let N(f-;p?)=card V(f-;p?). The notation N(f-;p?) means the number of zeros for that the polynomials f-. For a polynomial f (x) defined over the ring of integers Z, Sandor [2] showed that N(f;p?)? mp12ordpD, where D ? 0, ? > ordpD and D is the discriminant of f. In this paper we will try to introduce the concept of symbolic manipulation to ease the process of transformation from two-variables polynomials to one-variable polynomials. � 2016 Author(s). - Some of the metrics are blocked by yourconsent settings
Publication Packet loss rate differentiation in slotted Optical packet switching OCDM/WDM(Universitas Ahmad Dahlan, 2017) ;Najah O. ;Seman K. ;Abdulrahim K. ;Faculty of Science and TechnologyUniversiti Sains Islam Malaysia (USIM)We propose a multi-class mechanism for Optical Code Division Multiplexing (OCDM), Wavelength Division Multiplexing (WDM) Optical Packet Switch (OPS) architecture capable of supporting Quality of Service (QoS) transmission. OCDM/WDM has been proposed as a competitive hybrid switching technology to support the next generation optical Internet. This paper addresses performance issues in the slotted OPS networks and proposed four differentiation schemes to support Quality of Service. In addition, we present a comparison between the proposed schemes as well as, a simulation scheduler design which can be suitable for the core switch node in OPS networks. Using software simulations the performance of our algorithm in terms of losing probability, the packet delay, and scalability is evaluated. � 2017 Universitas Ahmad Dahlan. - Some of the metrics are blocked by yourconsent settings
Publication Randomness analysis on grain - 128 stream cipher(2013) ;Zawawi N.H.L.A. ;Seman K. ;Mohd Zaizi N.J. ;Faculty of Science and Technology ;Cyber Security MalaysiaUniversiti Sains Islam Malaysia (USIM)In this work, the randomness analysis of Grain-128 stream cipher algorithm by using NIST Statistical Test Suite is introduced. The NIST Statistical Test Suite is applied to determine the randomness of this algorithm. The Grain - 128 is based on LFSR, NLFSR and Boolean function with suitable for limited resources like gate count, power consumption and area chip. It uses 128-bit key and 96-bit initial value (IV). Based on our result of conducting the analysis, we obtained that this algorithm is not random at the 1% significance level. � 2013 AIP Publishing LLC. - Some of the metrics are blocked by yourconsent settings
Publication The architecture of saaids: Secured autonomous agent-Based intrusion detection system(2008) ;Mohd Nasir L.H. ;Seman K. ;Saudi M.M. ;Faculty of Science and TechnologyUniversiti Sains Islam Malaysia (USIM)SAAIDS architecture is developed to overcome three issues on existing agent-based intrusion Detection System (IDS); single-point of failure, hierarchical structure on multilevel authorization problem and delay on information sending. Besides that, the architecture tend to provide secure agent communication and protection of the agent itself. In overcoming single-point failure the architecture is designed to enrol all components in an agent. P2P connection solved hierarchical structure on multilevel authorization problem and delay on information sending by its design which provides direct connection between agents. In avoiding single point of bottle-neck, the architecture was designed with agent communication protocol functions as queuing message sending by its forms and priority. The architecture components and processes discussed in this paper. - Some of the metrics are blocked by yourconsent settings
Publication The improved models of internet pricing scheme of multi service multi link networks with various capacity links(Springer Verlag, 2015) ;Puspita F.M. ;Seman K. ;Taib B.M.Universiti Sains Islam Malaysia (USIM)Internet Service Providers (ISPs) nowadays deal with high demand to promote good quality information. However, the knowledge to develop new pricing scheme that serve both customers and supplier is known, but only a few pricing plans involve QoS networks. This study will seek new proposed pricing plans are offered with multi service multi link networks involved. The multi service multi link Networks scheme is solved as an optimization model by comparing two models in multi QoS networks. The results showed that by fixing the base price and varying the quality premium or varying the base price and quality and setting up the equal capacity link values, ISP achieved the goal to maximize the profit. � Springer International Publishing Switzerland 2015.