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Universally composable one-time signature and broadcast authentication

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Science China(Information Sciences) 2010年第3期53卷 567-580页

作者： moon SangJae Mobile Network Security Technology Research Center Kyungpook National University

Broadcast authentication is a vital security primitive for the management of a copious number of parties. In the universally composable framework, this paper investigates broadcast authentication using one-time signature based on the fact that one-time signature has efficient signature generation and verification suitable for low-power devices, and gives immediate authentication, which is a favorable property for time-critical messages. This paper first formulates a broadcast authentication model with the ideal functionalities such as one-time signature and broadcast authentication, and proposes a broadcast authentication scheme in the hybrid model. This paper then improves HORS, which is secure based on a strong assumption (i.e., a subset-resilient hash function) and presents the improved version as HORS+, which diffiers from HORS such that it is a secure one-time signature based on weaker assumptions, i.e. one-way functions, one-way hash functions and collisionresistant hash functions. At the same time, a protocol OWC using one-way chains is proposed to provide more registered keys for multi-message broadcast authentication. Our broadcast authentication scheme constructed by the combined use of HORS+ and OWC is universally composable secure and suitable for low-power devices.

关键词： network security universally composable security broadcast authentication one-time signature

Provably Secure Identity-based Group Key Exchange Protocol

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China Communications 2007年第4期4卷 11-22页

作者： SangJae moon Mobile Network Security Technology Research Center Kyungpook National University

Group key management is one of the basic building blocks in securing group communication.A number of solutions to group key exchange have been proposed,but most of them are not scalable and,in particular,require at least 0(log n) communication *** formally present a constant -round Identity-based protocol with forward secrecy for group key exchange,which is provably secure in the security model introduced by Bresson et *** protocol focuses on round efficiency and the number of communication round is only one greater than the lower bound presented by Becker and ***,the protocol provides a batch verification technique,which simultaneously verifies the validity of messages from other group participants and greatly improves computational ***,in our protocol,it is no necessary of always-online key generation center during the execution of the protocol compared to other Identity-based protocols.

关键词： provable security group key exchange bilinear pairings

Universally composable secure TNC model and EAP-TNC protocol in IF-T

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Science China(Information Sciences) 2010年第3期53卷 465-482页

作者： moon SangJae Mobile Network Security Technology Research Center Kyungpook National University

This paper analyzes trusted network connect (TNC) protocols within the universally composable (UC) framework. We propose the first TNC model in the UC framework by first designing the TNC ideal functionality FTNC, the EAP ideal functionality FEAP and the EAP-TNC ideal functionality FE-PA. Then, we construct a trusted network connect protocol named TK-TNC that UC-realizes FTNC in the (FEAP, FE-PA)- hybrid model. Subsequently, we perform a security analysis on protocol D-H PN given in the TCG specification and show that this protocol cannot securely realize the EAP-TNC ideal functionality and be resistant to an attack. Finally, we propose an alternative protocol using the twin Diffie-Hellman key-exchange technique, named protocol TD-H PN, which can securely realize the EAP-TNC ideal functionality in the (FREG, FCERT)-hybrid model.

关键词： network security universally composable security trusted network connect

Authentication Methods for 802.11s Mesh Networks

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China Communications 2007年第1期4卷 56-65页

作者： SangJae moon Mobile Network Security Technology Research Center

With the rapid development of the WLAN,the 802. 11 s mesh network is ***,adaptability and scalability are the most important attributes of a mesh ***,the security in an 802.11s mesh network is not well defined or specified,and there is no standard method to authenticate a mesh point that is creating a mesh *** this paper,we propose solutions for the authentication of mesh *** the Basic Infrastructure Security Mode,we combine the 802.1X/EAP and neighbor graph to realize the fast mutual authentication between a new mesh point and every its mesh *** prove that our scheme maintains the security of the standardized EAP authentication *** the same time,the simulation result shows that the authentication latency of our scheme is much lower than that of the scheme in[2].In the Basic Decentralized Security Mode(BDSM),802.11s mesh networks are very similar to ad hoc networks,but they are different in several *** first analyze the differences between *** on this analysis, we investigate the main authentication methods used in ad hoc networks and select the pairwise key pre-distribution model and identity-based model for the WLAN mesh network.

关键词： authentication 802.11s mesh networks ad hoc networks

Neurotoxicity of cancer chemotherapy

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Neural Regeneration Research 2013年第17期8卷 1606-1614页

作者： Miyoung yang Changjong moon Department of Veterinary Anatomy College of Veterinary Medicine and Animal Medical Institute Chonnam National University Department of Physiology and Neuroscience Program Michigan State University

There is accumulating clinical evidence that chemotherapeutic agents induce neurological side effects, including memory deficits and mood disorders, in cancer patients who have undergone chemotherapeutic treatments. This review focuses on chemotherapy-induced neurodegeneration and hippocampal dysfunctions and related mechanisms as measured by in vivo and in vitro approaches. These investigations are helpful in determining how best to further explore the causa mechanisms of chemotherapy-induced neurological side effects and in providing direction for the future development of novel optimized chemotherapeutic agents.

关键词： neural regeneration reviews neurogenesis behavioral dysfunction chemotherapy hippocampaldysfunction memory deficit mood disorder neurodegeneration neuron neuroplasticity neurotoxicity grants-supported paper neuroregeneration

Immersion Analysis Through Eye-Tracking and Audio in Virtual Reality

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Computers, Materials & Continua 2021年第10期69卷 647-660页

作者： Jihoon Lee Nammee moon Department of Computer Science Hoseo UniversityAsan-si31499Korea

In this study,using Head Mounted Display(HMD),which is one of the biggest advantage of Virtual Reality(VR)environment,tracks the user’s gaze in 360◦video content,and examines how the gaze pattern is distributed according to the user’s *** a result of analyzing the gaze pattern distribution of contents with high user immersion and contents with low user immersion through a questionnaire,it was confirmed that the higher the immersion,the more the gaze distribution tends to be concentrated in the center of the *** this experiment,we were able to understand the factors that make users immerse themselves in the VR environment,and among them,the importance of the audio of the content was ***,it was found that the shape of the gaze distribution for grasping the degree of immersion by the subject of the content was *** reviewing the experimental results,we also confirmed the necessity of research to recognize specific objects in a VR environment.

关键词： Virtual reality eye-tracking immersion analysis 360◦video

Level structure of the double-shell closure system with Z=14 and N=20:^(34)Si

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Chinese Physics C 2022年第12期46卷 226-231页

作者： Chang-Bum moon Cenxi yuan Center for Exotic Nuclear Studies The Institute for Basic Science(IBS)Daejeon 34126Republic of Korea Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China

The level structure of the double-magic nucleus ^(34)Si(Z=14,N=20)was investigated by evaluating the available *** the basis of experimental results from the beta-decay and fusion-evaporation reactions,we established the level scheme by assigning spin-parities up to 6_(1)^(+)at 6233 *** high energy positions of the excited states are consistent with the magicity at ^(34)Si,such as the 2_(2)^(+)state of the spherical ground band at 4.519 MeV and the 3^(-),4^(-),and 5^(-)states of the one-particle one-hole cross-shell states at approximately 4.5 *** nucleus,for a long time,has attracted much attention because of,on one side,a proton bubble structure in the ground state and,on the other side,a deformation in the second 0^(+)state,0_(2)^(+).By a comparison of the constructed level scheme with the shell model calculations,we describe the emerging structures in the ground and second 0+states and the negative-parity 3^(-)states within the framework of the shell model *** propose a deformed rotational band with the cascading 6_(2)^(+)−4_(1)^(+)−2_(1)^(+)transitions built on the 0_(2)^(+)state.

关键词： double shell closure level scheme two particle-two hole excitations large-scale shell model calculations

VARIABILITy MODELING TO DEVELOP FLEXIBLE SERVICE-ORIENTED APPLICATIONS

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Journal of Systems Science and Systems Engineering 2011年第2期20卷 193-216页

作者： Joonseok PARK Mikyeong moon Keunhyuk yEOM Department of Computer Science and Engineering Pusan National University Division of Computer and Information Engineering Dongseo University

To cope with requirement changes flexibly and rapidly,the existing component-based paradigm is being evolved into a service-oriented computing *** main characteristic of the service-oriented computing paradigm is that service-oriented applications are developed as loosely coupled services that reflect business *** paradigm also promotes business agility,facilitating quick reactions to business ***,to enhance and support the benefits of the service-oriented computing paradigm,we must consider how to improve flexibility and reusability during the development of service-oriented *** propose the variability modeling approach to specify and control the common and distinguishing characteristics of service-oriented *** is,the key concepts of product-line technology can be used to make service-oriented applications more flexible and *** paper describes variability modeling at two levels;the composition level and the specification *** the composition level,we describe the variability of composition and the flow of domain services that fulfill business *** the specification level,we present a domain service that is an abstract service with *** use of our systematic variability modeling approach can greatly increase the flexibility,applicability,and reusability of service-oriented applications.

关键词： Variability software product line reuse service oriented software flexible service model

Application of the ground cooling system for rural houses air conditioning in northeastern China

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International Journal of Agricultural and Biological Engineering 2022年第2期15卷 230-235页

作者： moon Ki Jang College of Information&Electric Engineering Shenyang Agricultural UniversityShenyang 110161China

This study developed an appropriate ground cooling system that can be used for indoor cooling during summers in rural houses in northeastern *** apply this system,a traditional rural house was selected and a heat exchanger was designed(PE pipe,32 m in length),manufactured,and installed according to the cooling load(2206 kJ/h)of one room of the experimental *** to the experiment,the temperature of Room 1 equipped with the cooling system was 3℃ lower than that of Room 2 without the ground cooling system during the same time *** temperature reduction effect of this system was confirmed through this *** the ground cooling system was used in rural houses in Northeast China,it was found that a burial depth of 1.5-2.0 m for the ground heat exchanger is appropriate for considering workability and frost *** use of the ground cooling system for indoor cooling during summers for rural houses in the northeastern region of China would reduce not only environmental pollution and the use of fossil fuels but also ease farmers off a certain amount of financial burden.

关键词： ground cooling system ground heat exchanger air conditioning system rural houses