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ByungKwan Lee,EunHee Jeong,YiNa Jeong 보안공학연구지원센터 2014 International Journal of Multimedia and Ubiquitous Vol.9 No.12
This paper proposes Message Propagation based on Three types of Density Classification for Smooth and Secure Vehicular Traffic Flow. The Message Propagation based on Three types of Density Classification (MPTDC) measures the density on three types of roads, namely a secluded rural road (0), a highway (1), and a urban intersection (2) and propagates messages to each classified one. When the type of message propagation is 1 and 2, the MPTDC generates a Cluster key by using MAC after grouping vehicles into a Cluster. The Cluster Header aggregates traffic information, and transfers it to a destination after filtering redundant or tampered traffic information. When the type of message propagation is 0, the MPTDC transfers traffic information by using RSU without generating a Cluster. In particular, when the type of message propagation is 2, the MPTDC selects a transmission path according to the density. Hence, this paper not only provides efficient communication but also improves the reliability of messages because it aggregates frequently encountered redundant messages.
( Yina Jeong ),( Eunhee Jeong ),( Byungkwan Lee ) 한국인터넷정보학회 2017 KSII Transactions on Internet and Information Syst Vol.11 No.2
This paper proposes an App Visualization (AppV) based on IoT Self-diagnosis Micro Control Unit (ISMCU) for accident prevention. It collects a current status of a vehicle through a sensor, visualizes it on a smart phone and prevents vehicles from accident. The AppV consists of 5 components. First, a Sensor Layer (SL) judges noxious gas from a current vehicle and a driver`s driving habit by collecting data from various sensors such as an Accelerator Position Sensor, an O2 sensor, an Oil Pressure Sensor, etc. and computing the concentration of the CO collected by a semiconductor gas sensor. Second, a Wireless Sensor Communication Layer (WSCL) supports Zigbee, Wi-Fi, and Bluetooth protocol so that it may transfer the sensor data collected in the SL to ISMCU and the data in the ISMCU to a Mobile. Third, an ISMCU integrates the transferred sensor information and transfers the integrated result to a Mobile. Fourth, a Mobile App Block Programming Tool (MABPT) is an independent App generation tool that changes to visual data just the vehicle information which drivers want from a smart phone. Fifth, an Embedded Module (EM) records the data collected through a Smart Phone real time in a Cloud Server. Therefore, because the AppV checks a vehicle` fault and bad driving habits that are not known from sensors and performs self-diagnosis through a mobile, it can reduce time and cost spending on accidents caused by a vehicle`s fault and noxious gas emitted to the outside.
A Design on Disease Rule Generation Scheme for Healthcare System
ByungKwan Lee,EunHee Jeong,INa Jung,Yong-Sik Jung 한국산업정보학회 2014 한국산업정보학회 학술대회논문집 Vol.2014 No.1
This paper proposes the DRGS (Disease Rule Generation Scheme) which generates the decision rules for Individually-Customized Medical Service and Medical Information. The DRGS generates a Decision rules with Rough Set Theory and support of attributes. Then the DRGS provides the enhanced Patient-Customized Medical Service and Medical Information by comparing and analyzing the extracted rules with a patient’s medical information, a current patient’s health condition, and a patient’s family history. In particular, because the DRGS generates the more excellent decision rules with the Rough Set Theory, contrary to the existing Decision Tree C4.5 algorithm which does not consider the relation between attributes, it improves the exactness, compared with the C4.5 algorithm.
A Design on a Secure Routing Protocol for detecting a Packet Injection Attack
ByungKwan Lee,EunHee Jeong,INa Jung 한국산업정보학회 2014 한국산업정보학회 학술대회논문집 Vol.2014 No.1
This paper proposes a design of A Secure Routing Protocol for detecting a Packet Injection Attack by the integrity verification of an RREQ/RREP message on the MANET. The Secure Routing Protocol provides the function to distribute Secret Key to a Base Station which manages the MANET. The Secure Routing Protocol verifies the integrity of an RREQ/RREP message by adding an Authentication Value using Secret Key to the RREQ/RREP message to prevent Packet Injection attack. Therefore, the Secure Routing Protocol prevents unnecessary message transmission by detecting a Packet Injection Attack, and improves energy efficiency.
A Black Hole Detection Protocol Design based on a Mutual Authentication Scheme on VANET
( Byungkwan Lee ),( Eunhee Jeong ) 한국인터넷정보학회 2016 KSII Transactions on Internet and Information Syst Vol.10 No.3
This paper proposes “A Black Hole Detection Protocol Design based on a Mutual Authentication Scheme on VANET.” It consists of the Mutual Authentication Scheme (MAS) that processes a Mutual Authentication by transferring messages among a Gateway Node, a Sensor Node, and a User Node and the Black Hole Detection Protocol (BHDP) which detects a Non-Authentication Node by using the Session Key computed in the MAS and a Black Hole by using the Broadcasting Table. Therefore, the MAS can reduce the operation count of hash functions more than the existing scheme and protect a privacy from an eavesdropping attack and an information exposure by hashing a nonce and user`s ID and password. In addition, the MAS prevents a replay attack by using the randomly generated nonce and the time stamp. The BHDP improves Packet Delivery ratio and Throughput more than the AODV with Black hole by 4.79% and 38.28Kbps. Also, it improves Packet Delivery ratio and Throughput more than the IDSAODV by 1.53% and 10.45Kbps. Hence it makes VANET more safe and reliable.