• Convergence Security Journal
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• v.12 no.1
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• pp.43-48
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• 2012

In this paper, the requirements for information security are presented in the ubiquitous ecological(u-Eco) city. The various definition of ubiquitous city is analyzed first, the concept of the u-Eco City, services and major projects are then presented. The framework of the integrated operating center for u-Eco city is proposed, the privacy, data security and network facility protection in the center are analyzed. Unlike to previously proposed security algorithms, the light-weight encoding algorithms(such as block/stream encoding, pseudo-random generator, hash function, and public key encoding) in the u-Eco city center are required to communicate the information in the ubiquitous sensor network. Furthermore, the principal policies guaranteeing the secrecy and authentication for the private information are also presented.

• Journal of the Korea Society of Computer and Information
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• v.12 no.5
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• pp.145-154
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• 2007

Analyzed about a matter and requirements to intimidate security of ubiquitous and home network threatening various security for personal information protection in ubiquitous home networks at this paper, and studied. Got authentication procedures and verification procedures acid user approach to be reasonable through designs to the home security gateway which strengthened a security function in the outsides, and strengthened protection of a home network. Also, execute a DoS. DDoS, IP Spoofing attack protective at home network security gateways proved, and security regarding against the Hacker's attack was performed, and confirmed. Strengthen appliances and security regarding a user, and confirm a defense regarding an external attack and present a home network security model of this paper to the plans that can strengthen personal information protection in ubiquitous home networks in ubiquitous home networks through experiment.

• Convergence Security Journal
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• v.5 no.4
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• pp.59-65
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• 2005

Ubiquitous Computing is gradually accepting in our real society. Already some Advanced State has studying of Ubiquitous for more convenience Ubiquitous environment. Anywhere, Anytime user can be provided information and service that he want, but it has some problem such as Rogue AP, IP spoofing, DoS attack, Warm which can causing social confusion in Ubiquitous society. In this paper we must analysis that security requirement in the Ubiquitous network environment and investigate 'Ad hoc' and RFID which is main technique for network infra construction.

• Culinary science and hospitality research
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• v.13 no.4
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• pp.305-316
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• 2007

This paper examines that a desirable organizational structure for a security policy in ubiquitous environments that are based on users' need to know and do their tasks in organizations. Tasks are a common entity which already exit and relate directly to both users(who are assigned to tasks and to information required for the completion of a task). Ubiquitous is highlighted as IT paradigm of the future generation. We propose a security model, called the Ubiquitous Group Security Model(UGSM), which associates with a task of processing the information which users need to know. The access type specification restricts the operations that users are permitted to perform, as defined by users' need to do for achieving their tasks in organizations.

• Proceedings of the KSRS Conference
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• 2004.10a
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• pp.91-94
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• 2004

Ubiquitous sensor network is to manage and collect information autonomously by communicating user around device. Security requirements in Ubiquitous based on sensor network are as follows: a location of sensor, a restriction of performance by low electric power, communication by broadcasting, etc. We propose new mutual authentication protocol using a low power of sensor node. This protocol solved a low power problem by reducing calculation overload of sensor node using two steps, RM(Register Manager) and AM(Authentication Manager). Many operations performing the sensor node itself have a big overload in low power node. Our protocol reduces the operation number from sensor node. Also it is mutual authentication protocol in Ubiquitous network, which satisfies mutual authentication, session key establishment, user and device authentication, MITM attack, confidentiality, integrity, and is safe the security enemy with solving low electric power problem.

• The KIPS Transactions:PartC
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• v.14C no.3 s.113
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• pp.239-254
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• 2007

Ubiquitous computing supports environment to freely connect to network without restrictions of place and time. This environment enables easy access and sharing of information, but because of easy unauthorized accesses, specified security policy is needed. Especially, ubiquitous sensor network devices use limited power and are small in size, so, many restrictions on policies are bound to happen. This paper proposes double-key based light weight security protocol, independent to specific sensor OS, platform and routing protocol in ubiquitous sensor network. The proposed protocol supports safe symmetric key distribution, and allows security manager to change and manage security levels and keys. This had a strong merit by which small process can make large security measures. In the performance evaluation, the proposed light weight security protocol using double-key in ubiquitous sensor network allows relatively efficient low power security policy. It will be efficient to ubiquitous sensor network, such as smart of ace and smart home.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2005.11a
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• pp.297-300
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• 2005

Especially, system security is very important in the ubiquitous environment. This paper proposes a protecting scheme for security policies in Firewall and intrusion detection system (IDS). The one-way hash function and the symmetric cryptosystem are used to make the protected rules for Firewalls and IDSs. The proposed scheme could be applied in diverse kind of defense systems which use rules.

• IEMEK Journal of Embedded Systems and Applications
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• v.1 no.2
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• pp.56-63
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• 2006

In this paper, we propose the integrated security management framework supporting the trust for the ubiquitous environments. The proposed framework provides the gathering and analysis of the security related information including the location of mobile device and then dynamically configures the security policy and adopts them. More specially, it supports the authentication and delegation service to support the trusted security management for the ubiquitous networks. This system also provides the visible management tools to give the convenient view for network administrator.

• The KIPS Transactions:PartA
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• v.11A no.7 s.91
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• pp.563-570
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• 2004

Ubiquitous computing environment requires strong security and privacy. Access control is one of security areas. Access control on Ubiquitous computing is different from it on traditional information systems so that traditional access control models are not suitable for Ubiquitous comput-ing environment. This research defines Ubiquitous computing environment as an access control point of view, and shows requirements to consid-er for developing access control model for Ubiquitous computing environment. It also brings up three implementing types of access control on Ubiquitous computing environment.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.1
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• pp.868-871
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• 2005

We proposed the detection method and security threat under ubiquitous surroundings. We described the problems that must be faced in the design of such a wireless protocol model. The internet is a natural and universal means of providing this interconnection. The networking of these ubiquitous computing devices is driven by the synergy between three trends. In this paper, we analysed the security model under ubiquitous surroundings.