• 정보보호학회논문지
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• 제22권2호
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• pp.337-346
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• 2012

인터넷 기술을 활용한 클라우드 컴퓨팅 서비스의 확산에 따라 개인정보 유출 위험과 정보에 대한 통제가 불가능해질 수 있는 보안 위협이 증가되고 있으나, 현재 클라우드 컴퓨팅 서비스 제공자는 개인정보보호에 대한 충분한 보호조치를 서비스 이용자에게 제공하지 못하고 있는 상황이다. 본 논문에서는 클라우드 컴퓨팅 서비스에 대한 개인정보보호 고려 사항을 살펴보고, 클라우드 컴퓨팅 서비스 환경에서의 개인정보보호 위협에 대응하는 방안을 제안한다.

• 정보과학회 논문지
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• 제44권9호
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• pp.918-931
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• 2017

스마트폰과 웨어러블 기기의 확산으로 개인정보의 축적 및 사용이 증가하여 프라이버시 보호가 이슈화되고 있다. 이에 따라 개인정보 보호를 위한 다양한 보안 기술이 연구 및 발전되고 관련 법률이 개정되고 있지만, 여전히 개인정보 유출 사고가 발생하고 있다. 이는 요구사항 명세 단계에서 프라이버시 요구사항이 명확히 정의되지 않은 채 보안 요구사항만 명세 되어 소프트웨어 개발 시 보안 기술 구현에 집중하기 때문이다. 즉, 기존 연구들은 프라이버시와 보안의 관계성을 고려하지 않은 채 보안 요구사항을 도출하거나 프라이버시 보호를 위한 원칙, 법률 등을 보완하는 것에 집중되어 있다. 따라서 법률을 기반으로 소프트웨어 개발 시 적용 가능한 프라이버시 요구사항을 도출하고 프라이버시와 보안의 관계를 명확히 명시하는 방법이 필요하다. 본 연구에서는 프라이버시 친화 시스템 구축을 위해 필요한 프라이버시 요구사항을 검증 및 도출하고, 프라이버시 보증 사례 작성을 통해 보안과 프라이버시의 관계성을 표현한다.

• Journal of information and communication convergence engineering
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• 제9권6호
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• pp.701-705
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• 2011

RFID is a widely adopted in the field of identification technology these days. Radio Frequency IDentification (RFID) has wide applications in many areas including manufacturing, healthcare, and transportation. Because limited resource RFID tags are used, various risks could threaten their abilities to provide essential services to users. A number of RFID protocols have done by researcher in order to protect against some malicious attacks and threat. Existing RFID protocols are able to resolve a number of security and privacy issues, but still unable to overcome other security & privacy related issues. In this paper, we analyses security schemes and vulnerability in RFID application. Considering this RFID security issues, we survey the security threats and open problems related to issues by means of information security and privacy. Neither a symmetric nor an asymmetric cryptographic deployment is necessarily used with light weighted algorithm in the future.

• International Journal of Computer Science & Network Security
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• 제21권7호
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• pp.43-55
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• 2021

The amount of Big Data generated from multiple sources is continuously increasing. Traditional storage methods lack the capacity for such massive amounts of data. Consequently, most organizations have shifted to the use of cloud storage as an alternative option to store Big Data. Despite the significant developments in cloud storage, it still faces many challenges, such as privacy and security concerns. This paper discusses Big Data, its challenges, and different classifications of security and privacy challenges. Furthermore, it proposes a new classification of Big Data security and privacy challenges and offers some perspectives to provide solutions to these challenges.

• International Journal of Computer Science & Network Security
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• 제21권11호
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• pp.105-110
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• 2021

Contact between Vehicle-to-vehicle and vehicle-to-infrastructural is becoming increasingly popular in recent years due to their crucial role in the field of intelligent transportation. Vehicular Ad-hoc networks (VANETs) security and privacy are of the highest value since a transparent wireless communication tool allows an intruder to intercept, tamper, reply and erase messages in plain text. The security of a VANET based intelligent transport system may therefore be compromised. There is a strong likelihood. Securing and maintaining message exchange in VANETs is currently the focal point of several security testing teams, as it is reflected in the number of authentication schemes. However, these systems have not fulfilled all aspects of security and privacy criteria. This study is an attempt to provide a detailed history of VANETs and their components; different kinds of attacks and all protection and privacy criteria for VANETs. This paper contributed to the existing literature by systematically analyzes and compares existing authentication and confidentiality systems based on all security needs, the cost of information and communication as well as the level of resistance to different types of attacks. This paper may be used as a guide and reference for any new VANET protection and privacy technologies in the design and development.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 춘계학술대회
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• pp.899-900
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• 2012

RFID technology can help automatically and remotely identify objects, which raises many security concerns. We review and categorize several RFID security and privacy solutions, and conclude that the most promising and low-cost approach currently attracts little academic attention. We therefore concluded that, from a privacy perspective, the user scheme is an important strategy for meeting the consumer's needs. Furthermore, we call for the privacy research community to put more effort into this line of thinking about RFID privacy.

• International Journal of Contents
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• 제6권3호
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• pp.15-18
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• 2010

Grid system is based on the Grid Security Infrastructure (GSI). GSI uses user's proxy to guarantee availability among multi-trust domains. Since grid system has been developed focusing on availability, GSI provides authentication and authorization performed by systems, but there are lacks of privacy consideration. For this reason, some researchers decide to use their own cluster system and do not want to use public grid systems. In this paper, we introduce a new privacy enhanced security mechanism for grid systems. With this mechanism, user can participate in resource allocation and authorization to user's contents more actively. This mechanism does not need to change previous middleware and minimize the computational overheads.

• 디지털산업정보학회논문지
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• 제12권3호
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• pp.133-155
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• 2016

Recently, in the adoption of cloud computing are emerging as locations are key requirements of security and privacy, at home and abroad, several organizations recognize the importance of privacy in cloud computing environments and research-based transcription and systematic approach in progress have. The purpose of this study was to recognize the importance of privacy in the cloud computing environment based on personal information security methodology to the security of cloud computing, cloud computing, users must be verified, empirical research on the improvement plan. Therefore, for existing users of enhanced security in cloud computing security consisted framework of existing cloud computing environments. Personal information protection management system: This is important to strengthen security for existing users of cloud computing security through a variety of personal information security methodology and lead to positive word-of-mouth to create and foster the cloud industry ubiquitous expression, working environments.

• 한국통신학회논문지
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• 제30권3C호
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• pp.167-175
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• 2005

최근 프라이버시 적용이 IT분야의 가장 중요한 문제의 하나로 대두되고 있다. 프라이버시 보호는 조직의 데이터 처리 시스템에 프라이버시 정책을 적용함으로써 달성될 수 있다. 전통적인 보안 모델은 목적 결합(purpose binding)과 같은 프라이버시의 기본적인 요구사항을 적용하기에 부적절하다. 본 논문은 기존의 보안모델에 통합하여 쉽게 적용할 수 있는 프라이버시 제어 모델을 제안한다. 이를 위하여 기존의 보안모델로 RBAC과 도메인-타입을 적용하여 문맥기반 접근제어를 제공하는 하나의 확장된 역할기반 접근제어 모델이 사용되었고, 프라이버시 제어 모델에서는 프라이버시 선호로 표현되는 목적 결합을 적용하기위해 GRBAC이 사용되었다. 또 이 모델의 응용을 위하여 작은 병원 모델이 고려되었다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권8호
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• pp.2083-2100
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• 2023

The rise of Industry 5.0 has led to a smarter and more digital way of doing business, but with it comes the issue of user privacy and security. Only when privacy and security issues are addressed, will users be able to transact online with greater peace of mind. Thus, to address the security and privacy problems associated with industry blockchain technology, we propose a privacy protection scheme for online financial transactions based on verifiable ring signatures and blockchain by comparing and combining the unconditional anonymity provided by ring signatures with the high integrity provided by blockchain technology. Firstly, we present an algorithm for verifying ring signature based on distributed key generation, which can ensure the integrity of transaction data. Secondly, by using the block chain technique, we choose the proxy node to send the plaintext message into the block chain, and guarantee the security of the asset transaction. On this basis, the designed scheme is subjected to a security analysis to verify that it is completely anonymous, verifiable and unerasable. The protection of user privacy can be achieved while enabling online transactions. Finally, it is shown that the proposed method is more effective and practical than other similar solutions in performance assessment and simulation. It is proved that the scheme is a safe and efficient online financial transaction ring signature scheme.