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The discrete logarithm problem (DLP) is one of the familiar problem on which some cryptographic schemes rely. In 2006, Cheon proposed an algorithm for solving DLP with auxiliary input which works better than conventional algorithms. In this paper, we show our experimental results of Cheon's algorithm on a pairing-friendly elliptic curve defined over GF(3127). It is shown that the algorithm combined...
In the research of the anomaly detection system analyzing the packet header on the Internet, previous researches have proposed the anomaly detection system using chi-square values in terms of the source IP address and/or the destination port number. In these previous researches, the chi-square values were calculated from one feature causing the degradation in the False-Positive when the same symbol...
This paper presents a modified Hop field neural network (HopfieldNN) for solving the PMC-based system-level fault diagnosis problem of multiprocessor systems which aims at identifying the set of faulty processors. The PMC-based diagnosis model assumes that each processor is tested by a subset of the other processors, and that at most a bounded subset of these processors can permanently fail at the...
This paper discusses some of the research done in the area of communities of Web services. A community allows Web services offering similar functionalities to be grouped together. One challenge that arises as a result of this grouping concerns the assessment of the level of service of the community. We refer to this level of service as Quality of Community (QoC). The QoC is important as it permits...
Low Extra Delay Background Transport (LEDBAT) congestion control algorithm is designed to address the unfairness problem of TCP aggravated by applications that use multiple TCP connections for data transfer. LEDBAT operates under the assumption that the queue delay at the access router of the bottleneck link will be the primary varying contributor to end-to-end one-way delay. However this assumption...
In peer-to-peer video-on-demand (P2P VoD) streaming services, a video server load is reduced by peers who cache data of the viewed videos and send these data to other peers instead of the video server. Although FIFO is typically used as the caching algorithm, it is not efficient for using upload bandwidth of the peers because the peers can cache the data of unpopular videos and cannot be requested...
Recently, there has been focus on augmenting Delay/Disruption Tolerant Networks (DTNs) with easily deployable stationary relay nodes making an unconnected infrastructure to facilitate the data delivery by increasing forwarding opportunities. Relay nodes are capable of downloading, storing, and forwarding the data messages from/to the mobile nodes. Placing the relay nodes is an important issue in DTNs...
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