Papers - Sasase, Iwao

Encounter Record Reduction Scheme based on Theoretical Contact Probability for Flooding Attack Mitigation in DTN

Keisuke Arai, Shuichiro Haruta, Hiromu Asahina and Iwao Sasase

The 2018 24th Asia-Pacific Conference on Communications (APCC2018) （2018 24th Asia-Pacific Conference on Communications, APCC 2018)     34 - 39 2018.11

Research paper (international conference proceedings), Joint Work, Accepted,  ISSN  9781538669280

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© 2018 IEEE. Delay Tolerant Network (DTN) is characterized by a lack of end-to-end connectivity. Due to this, detecting flooding attack in DTN is a challenging and important task. Among several schemes against flooding attack in DTN, the scheme using Encounter Record (ER) that consists of past transmission history of each node is gathering attention. Since ER entries are exchanged between nodes, a node can detect an attacker whose transmission rate is too much. Although an attacker may falsify entry to pretend that his/her transmission rate is less than the actual value, it can also be detected through the contradiction between a falsified entry and another entry. However, since a node sends all ER entries in its own buffer regardless of whether an entry is helpful to detect an attacker or not, the energy consumption increases as the number of entries increases. In this paper, we propose an ER reduction scheme based on theoretical contact probability for flooding attack mitigation. We focus on the fact that if the falsified entry does not exist, corresponding entries are not helpful to detect an attacker. Since the falsified entries are propagated over the network with the lapse of time, the probability that there is no contradicting entries over the network gets higher if a node has not received any contradicting entries for a sufficient time. By removing such entries, the energy consumption can be reduced while the effectiveness of ER is kept. By computer simulation, we demonstrate our scheme successfully reduce the energy consumption while the same level of performance is achieved.

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An Energy Efficient Target Specific Code Dissemination Scheme with Forwarder Selection Algorithm

Hiromu Asahina, Kentaroh Toyoda, Iwao Sasase, P. Takis Mathiopoulos and Hisao Yamamoto

The 2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2018) （IEEE)   2018.09

Research paper (international conference proceedings), Accepted

An Efficient Code Dissemination Tree Construction Algorithm using Data Collection Tree in WSNs

Hiromu Asahina, Kentaroh Toyoda, Iwao Sasase, P. Takis Mathiopoulos and Hisao Yamamoto,

Workshop on Smart City based on Ambient Intelligence (SCAI2018) （IEICE)   2018.08

Research paper (international conference proceedings), Joint Work, Accepted

High-Order Statistics for the Channel Capacity of EGC Receivers over Generalized Fading Channels

Kostas P. Peppas, , P. Takis Mathiopoulos, Jing Yang, Can Zhang　and Iwao Sasase

IEEE Communications letters （IEEE)  22 （ 8 ） 1740 - 1743 2018.08

Research paper (scientific journal), Joint Work, Accepted,  ISSN  1089-7798

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© 1997-2012 IEEE. This letter presents novel results for the high-order capacity statistics of equal gain combining diversity receivers. The proposed methodology to obtain these results includes in the analysis the study of generalized fading channels and an arbitrary number of receiving antennas. Analytical expressions for the n-Th order capacity statistics as well as for the amount of dispersion, the reliability of the signal throughput, the kurtosis, and the skewness of the channel capacity distribution have been derived. The validity of the proposed methodology has been verified by means of Monte Carlo computer simulations. Furthermore, it has been shown that previously published results for the first-order capacity statistics are included in the analysis as special cases.

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Resource Allocation for Hyper-MIMO System with Block Diagonalization Precoding Technique

Aye Mon Thun, Maung Sann Maw and Iwao Sasase

IEICE Information and Communication technology Forum 2018 （IEICE)   2018.07

Research paper (international conference proceedings), Joint Work, Accepted

Keynote Speech, Expectation to Smart ICT Society by Accelerating Research and Educational Activities in Universities and Enterprises

Iwao Sasase

IEICE Information and Communication technology Forum 2018  2018.07

Research paper (international conference proceedings), Single Work

RFID-Based Deep Shopping Data Acquisition Scheme with Multiple Feature Extraction

Shinichiro Aita, Hiromu Asahina, Kentaroh Toyoda, and Iwao Sasase

IEICE Information and Communication technology Forum 2018 （IEICE)   2018.07

Research paper (international conference proceedings), Joint Work, Accepted

Feature Selection Scheme for Android ICC-related Features Based on the Gap of the Appearance Ratio

Kyohei Osuge, Hiroya Kato and Iwao Sasase

IEICE Information and Communication technology Forum 2018 （IEICE)   2018.07

Research paper (international conference proceedings), Joint Work, Accepted

A False Information Attack Detection Scheme using Density of Vehicles and Overlap of Communication Range in VANET

Masashi Yoshida, Hiromu Asahina, Shuichiro Haruta and Iwao Sasase

IEICE Information and Communication technology Forum 2018 （IEICE)   2018.07

Research paper (international conference proceedings), Joint Work, Accepted

Efficient P2P Storage Scheme with　Privacy Protection

Sanghun Choi, Hiromu Asahina and Iwao Sasase

The 15th Annual IEEE Consumer Communications and Networking Conference （CCNC 2018 - 2018 15th IEEE Annual Consumer Communications and Networking Conference)  2018-January   1 - 2 2018.01

Research paper (international conference proceedings), Joint Work, Accepted,  ISSN  9781538647905

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© 2018 IEEE. The main ideas of our scheme are that the storage nodes are selected according to the updating frequency of data for reducing the transmission and the delay, and the relay nodes can be acted as the owners of data instead of the real owner of data for protecting the user's privacy. Furthermore, by using the DIFF method, the user can effectively modify the stored data with the lower transmission cost and delay.

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Visual Similarity-Based Phishing Detection Scheme Using Image and CSS with Target Website Finder

Haruta S., Asahina H., Sasase I.

2017 IEEE Global Communications Conference, GLOBECOM 2017 - Proceedings （2017 IEEE Global Communications Conference, GLOBECOM 2017 - Proceedings)  2018-January   1 - 6 2018.01

ISSN  9781509050192

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© 2017 IEEE. The detection of phishing websites and identifying their target are imperative. Among several phishing detection schemes, the scheme using visual similarity is gathering attention. It takes a screenshot of website and stores it to the database. If the inputted website''s screenshot is similar to database''s one, it is judged as phishing. However, if multiple similar websites exist, the first inputted website is regarded as legitimate. As a result, it cannot correctly detect legitimate website and identifying phishing target becomes difficult. As a second shortcoming, if the screenshot of phishing website is locally different from ones in the database, false negative occurs. In this paper, we propose visual similarity-based phishing detection scheme using image and CSS with target website finder. To remedy first shortcoming, we focus on the fact that legitimate websites are often linked by other websites and regard such website as legitimate and store the screenshot and CSS in the database. Since CSS is a file which defines the websites visual contents, attackers often steal legitimate CSS to mimic the legitimate website. Thus, by detecting the website which plagiarizes appearance or CSS of legitimate website, we detect phishing website and its target simultaneously. Moreover, we can alleviate the second shortcoming by using CSS because it is probable that the websites which have locally different appearance use identical CSS. By computer simulation with real dataset, we demonstrate our scheme improves detection accuracy while finding phishing target.

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Obfuscated malicious JavaScript detection scheme using the feature based on divided URL

Shoya Morishige, Shuichiro Haruta, Hiromu Asahina and Iwao Sasase

The 23rd Asia-Pacific Conference on Communications （2017 23rd Asia-Pacific Conference on Communications: Bridging the Metropolitan and the Remote, APCC 2017)  2018-January   1 - 6 2017.12

Research paper (international conference proceedings), Accepted,  ISSN  9781740523905

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© 2017 IEEE. On web application services, detecting obfuscated malicious JavaScript utilized for the attacks such as Drive-by-Download is an urgent demand. Obfuscation is a technique that modifies some elements of program codes and is used to evade the pattern matching of traditional anti-virus softwares. In particular, encode obfuscation is adopted in almost all malicious JavaScript codes as the most effective technique to hide their malicious intents. Therefore, many approaches focus on encode obfuscation to detect malicious JavaScript. However, we point out that malicious JavaScript obfuscated by the techniques except for encode obfuscation can easily evade those approaches. Motivated by the above, in this paper, we first investigated the malicious files that previous schemes cannot detect, and found that some files contain divided URL in their codes. In order to detect such JavaScript codes as malicious, we propose obfuscated malicious JavaScript detection scheme using the feature based on divided URL. We focus on the fact that the segments of URL are declared as variables and connected later. Our scheme stores variables and their contents in the dictionary type object and in the connection parts, verifies that malicious URL can be reconstructed. By the computer simulation with real dataset, we show that our scheme improves the detection effectiveness of the conventional scheme.

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Traceroute-based target link flooding attack detection scheme by analyzing hop Count to the destination

Kei Sakuma, Shuichiro Haruta, Hiromu Asahina and Iwao Sasase

The 23rd Asia-Pacific Conference on Communications （2017 23rd Asia-Pacific Conference on Communications: Bridging the Metropolitan and the Remote, APCC 2017)  2018-January   1 - 6 2017.12

Research paper (international conference proceedings), Accepted,  ISSN  9781740523905

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© 2017 University of Western Australia. Recently, the detection of target link flooding attack which is a new type of DDoS (Distributed Denial of Service) is required. Target link flooding attack is used for disconnecting a specific area from the Internet. It is more difficult to detect and mitigate this attack than legacy DDoS since attacking flows do not reach the target region. Among several schemes for target link flooding attack, the scheme focusing on traceroute is gathering attention. The idea behind that is the attacker needs to send traceroute to investigate the topology around targeted region before attack starts. That scheme detects the attack by finding rapid increase of traceroute. However, it cannot work when attacker's traceroute ratio is low. In this paper, we propose traceroute-based target link flooding attack detection scheme by analyzing hop count to the destination. Since the attacker must choose the link flooded to disconnect the target area, the destinations of attacker's traceroutes are concentrated within several hops from the target link while legitimate user's ones are distributed uniformly. By analyzing the number of traceroutes as per hop counts, the change can be emphasized and the attack symptom might be more easily captured. By computer simulations, we first prove the above hypotheses and show that our scheme has more robustness compared with the conventional scheme.

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Visual similarity-based phishing detection scheme using image and CSS with target website finder,

Shuichiro Haruta, Hiromu Asahina and Iwao Sasas

2017 IEEE Global Telecommunications Conference, Communication and Information System Security （IEEE)   2017.12

Research paper (international conference proceedings), Accepted

Malicious PDF detection scheme using the useful feature based on non-frequent keywords in a file

Hiroya Kato, Shuichiro Haruta and Iwao Sasase

IEICE Information and Communication Technology Forum 2017 （IEICE)   2017.07

Research paper (international conference proceedings), Joint Work, Accepted

Cost effective dummy generation scheme in non-trusted LBS

Sanghun Choi, Shuichiro Haruta, Hiromu Asahina, and Iwao Sasase

IEICE Information and Communication Technology Forum 2017 （IEICE)   2017.07

Research paper (international conference proceedings), Accepted

A Novel Blockchain-Based Product Ownership Management System (POMS) for Anti-Counterfeits in The Post Supply Chai

Kentaroh Toyoda, P. Takis Mathiopoulos, Iwao Sasase　and Tomoaki Ohtsuki

IEEE Access （IEEE)   2017.06

Research paper (scientific journal), Joint Work, Accepted

• Access to Document (DOI)

An efficient tree-based code dissemination and search protocol for small subset of sensors

Hiromu Asahina, Iwao Sasase and Hisao Yamamoto

IEEE International Conference on Communications, Workshop 06 -Convergent Internet of Things on the Synergy of IoT Systems,  2017.05

Research paper (international conference proceedings), Joint Work, Accepted

Vibration-based key exchange among multiple smart devices on the desk

Alisa Arno, Kentaroh Toyoda, Yuji Watanabe, Iwao Sasase and P. Takis Mathiopoulos

International Journal of Image Processing & Communications 16 （ 3-4 ） 1 - 8 2017.03

Research paper (scientific journal), Joint Work, Accepted

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Eavesdropping is an important and real concern in mobile NFC (Near Filed Communication) payment and data sharing applications. Although the DH (Diffie-Hellman) scheme has been widely used in key exchange for secure communications, it may fail in indoor environments due to the vulnerability against man-in-the-middle attack. In this paper, we
propose a vibration-based key exchange among multiple smart devices on the desk. In the proposed scheme, devices are assumed to be placed next to each other and each device vibrates with patterns converted from a key to be exchanged
and measures them with accelerometer to recover it. Then, each key is recovered from measured acceleration. The proposed scheme has been implemented using with Android smartphones and various experimental performance
evaluation results have validated its effectiveness.

Relocation of Mobile Sensor Nodes with Battery Aware Threshold Distance Algorithm in Wireless Sensor Networks

Aye Mon Htun, Maung Sann Maw and Iwao Sasase

AUN/SEED-Net Regional Conference for Computer and Information Engineering 2016 (RCCIE 2016)  2016.10

Research paper (international conference proceedings), Joint Work, Accepted