This paper shows a generic and simple conversion from weak asymmetric and symmetric encryption schemes into an asymmetric encryption scheme which is secure in a very strong sense- indistinguishability against adaptive chosen-ciphertext attacks in the random oracle model. In particular, this conversion can be applied efficiently to an asymmetric encryption scheme that provides a large enough coin space and, for every message, many enough variants of the encryption, like the ElGamal encryption scheme.

Secure integration of asymmetric and symmetric encryption schemes

Cyber-Physical Systems Security: Limitations, Issues and Future Trends

Supervisory Control and Data Acquisition (SCADA) systems are the underlying monitoring and control components of critical infrastructures, such as power, telecommunication, transportation, pipelines, chemicals and manufacturing plants. Legacy SCADA systems operated on isolated networks, that made them less exposed to Internet threats. However, the increasing connection of SCADA systems to the Internet, as well as corporate networks, introduces severe security issues. Security considerations for SCADA systems are gaining higher attention, as the number of security incidents against these critical infrastructures is increasing. In this survey, we provide an overview of the general SCADA architecture, along with a detailed description of the SCADA communication protocols. Additionally, we discuss certain high-impact security incidents, objectives, and threats. Furthermore, we carry out an extensive review of the security proposals and tactics that aim to secure SCADA systems. We also discuss the state of SCADA system security. Finally, we present the current research trends and future advancements of SCADA security.

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A Survey on SCADA Systems: Secure Protocols, Incidents, Threats and Tactics

Whowould buy this work,which is no comfortable evening reading and is priced at over $1,250? It may be that the price will keep this away from libraries that are too easily available to the general public, and this may be no bad thing. For sure, this remarkable compendium needs to be accessible to CEOs of large organizations, municipal emergency planners, police authorities, the military, and indeed any organization concerned with community resilience in the face of disasters due to natural causes, human negligence or mischief, as well as with the terrorist threat that occupies so much of the political and public agenda. Its relevance is marked by the publication dates of its contributions, which are very recent, most after 2008. Managers should issue a “read this and letme have your comments and action recommendations”directive to consider specific parts of theHandbook.Price should be no deterrent to purchase – it is goldwith the price of phosphor bronze!

Wiley Handbook of Science and Technology for Homeland Security

Community detection, aiming at determining correct affiliation of each node in a network, is a critical task of complex network analysis. Owing to its high efficiency, Symmetric and Non-negative Matrix Factorization (SNMF) is frequently adopted to handle this task. However, existing SNMF models mostly focus on a network's first-order topological information described by its adjacency matrix without considering the implicit associations among involved nodes. To address this issue, this study proposes a Pointwise mutual information-incorporated and Graph-regularized SNMF (PGS) model. It uses a) Pointwise Mutual Information to quantify implicit associations among nodes, thereby completing the missing but crucial information among critical nodes in a uniform way; b) graph-regularization to achieve precise representation of local topology, and c) SNMF to implement efficient community detection. Empirical studies on eight real-world social networks generated by industrial applications demonstrate that a PGS model achieves significantly higher accuracy gain in community detection than state-of-the-art community detectors.

Highly-Accurate Community Detection via Pointwise Mutual Information-Incorporated Symmetric Non-Negative Matrix Factorization

Information technology (IT) security has become a major concern due to the growing demand for information and massive development of client/server applications for various types of applications running on modern IT infrastructure. How has security been taken into account and which paradigms are necessary to minimize security issues while increasing efficiency, reducing the influence on transmissions, ensuring protocol independency and achieving substantial performance? We have found cryptography to be an absolute security mechanism for client/server architectures, and in this study, a new security design was developed with the MODBUS protocol, which is considered to offer phenomenal performance for future development and enhancement of real IT infrastructure. This study is also considered to be a complete development because security is tested in almost all ways of MODBUS communication. The computed measurements are evaluated to validate the overall development, and the results indicate a substantial improvement in security that is differentiated from conventional methods.

Real time MODBUS transmissions and cryptography security designs and enhancements of protocol sensitive information

We present 12 cases in which palmaris longus tendocutaneous arterialized venous free flaps were used for the reconstruction of the collateral ligament in compound defects of digits. There were nine cases involving the interphalangeal joint of the fingers and three of the interphalangeal joints of the thumb. The venous flaps survived completely in 10 of the 12 cases. In 11 cases, there were excellent functional results for joint stability, pain, total active motion and pinch power. In all 12 cases, a pain-free joint with excellent stability was achieved after surgery. The palmaris longus tendocutaneous arterialized venous free flap is a good option for reconstruction of composite defects of the collateral ligament of the interphalangeal joint.Level of evidence: IV

Palmaris longus tendocutaneous arterialized venous free flap to reconstruct the interphalangeal collateral ligament in composite defects

In Industrial systems, Supervisory control and data acquisition (SCADA) system, the pseudo-transport layer of the distributed network protocol (DNP3) performs the functions of the transport layer and network layer of the open systems interconnection (OSI) model. This study used a simulation design of water pumping system, in-which the network nodes are directly and wirelessly connected with sensors, and are monitored by the main controller, as part of the wireless SCADA system. This study also intends to focus on the security issues inherent in the pseudo-transport layer of the DNP3 protocol. During disassembly and reassembling processes, the pseudo-transport layer keeps track of the bytes sequence. However, no mechanism is available that can verify the message or maintain the integrity of the bytes in the bytes received/transmitted from/to the data link layer or in the send/respond from the main controller/sensors. To properly and sequentially keep track of the bytes, a mechanism is required that can perform verification while bytes are received/transmitted from/to the lower layer of the DNP3 protocol or the send/respond to/from field sensors. For security and byte verification purposes, a mechanism needs to be proposed for the pseudo-transport layer, by employing cryptography algorithm. A dynamic choice security buffer (SB) is designed and employed during the security development. To achieve the desired goals of the proposed study, a pseudo-transport layer stack model is designed using the DNP3 protocol open library and the security is deployed and tested, without changing the original design.

A Secure, Intelligent, and Smart-Sensing Approach for Industrial System Automation and Transmission over Unsecured Wireless Networks

We developed a design of Intelligent Healthcare Data Management System using nanosensors (IHDMS) and composed an application for mobile device. The proposed IHDMS will coordinate the healthcare data of the patients from nanosensors and transforms it into a worldwide consumed standard HL7 (Health Level Seven) for conversion of healthcare data. This converted data dispatches to a server of its system. The battery lifetime of the facility is feasible to increase, the memory usage is less than 100 KB, and it operates all data by employing few and far between resources. Moreover, the proposed system decreases the waiting time in the transposing data, and secured channel was used for the server of the healthcare center in the running HL7 format data.

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The Intelligent Healthcare Data Management System Using Nanosensors

In this present paper, a preliminary evaluation on physiological activities of Turmeric(Curcuma longa) extracts is investigated. Initially, the DPPH radical scavenging activities of hot water and 95% ethanol extract of C. longa were measured 58.24 ± 0.058% and 39.20 ± 0.021% respectively, and tyrosinase inhibitory activities of hot water and 95% ethanol extracts were also measured 43.14 ± 0.028% and 93.14 ± 0.021%, respectively. In case of C. longa extracted by hot water, RAW 264.7 cell growth gradually increased with increasing concentration. But in the extracts of 95% ethanol, a RAW 264.7 cell has very good growth in a 40 ㎍/㎖, and its cell growth has tended to decrease in higher than 40 ㎍/㎖concentration. The inhibition rate of NO production in hot water and 95% ethanol extract was about 14.8% at 80 ㎍/㎖, and about 79.4% at 100 ㎍/㎖concentration. The microbial growths of S. aureus, E. coli, P. aeruginosa and S. typhimurium treated with hot water extract showed no inhibitory response, but growth of S. pyrogenes bacteria has about 18.2% inhibited in 1,500 ㎍/㎖. In case of 95% ethanol extract, microbial growth of 5 strains decrease depends on the concentration of the extract.

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Young Keun Lee

Papers

Real time MODBUS transmissions and cryptography security designs and enhancements of protocol sensitive information

Palmaris longus tendocutaneous arterialized venous free flap to reconstruct the interphalangeal collateral ligament in composite defects

A Secure, Intelligent, and Smart-Sensing Approach for Industrial System Automation and Transmission over Unsecured Wireless Networks

The Intelligent Healthcare Data Management System Using Nanosensors

Evaluation of Antioxidant, Tyrosinase Inhibitory and Anti-inflammatory Activities of Turmeric(Curcuma longa) Extracts