• Journal of Information Processing Systems
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• 제17권4호
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• pp.834-850
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• 2021

IT security companies have been releasing file system filter driver security solutions based on the whitelist, which are being used by several enterprises in the relevant industries. However, in February 2019, a whitelist vulnerability was discovered in Microsoft Edge browser, which allows malicious code to be executed unknown to users. If a hacker had inserted a program that executed malicious code into the whitelist, it would have resulted in considerable damage. File system filter driver security solutions based on the whitelist are discretionary access control (DAC) models. Hence, the whitelist is vulnerable because it only considers the target subject to be accessed, without taking into account the access rights of the file target object. In this study, we propose an industrial device security system for Windows to address this vulnerability, which improves the security of the security policy by determining not only the access rights of the subject but also those of the object through the application of the mandatory access control (MAC) policy in the Windows industrial operating system. The access control method does not base the security policy on the whitelist; instead, by investigating the setting of the security policy not only for the subject but also the object, we propose a method that provides improved stability, compared to the conventional whitelist method.

• 한국의상디자인학회지
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• 제21권2호
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• pp.43-56
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• 2019

The purpose of this study is to analyze the phenomenon of 'play' in contemporary fashion creation from an interactive point of view and to analyze cases in the contemporary fashion design creation process. The research method was a combined literature review and a case study. As a result of the research, we have derived the creations of interactive fashion design from the viewpoint can be categorized as 'play as creativity', 'mimesis', and 'deviance'. First, creativity can be seen in DIY products, customized products, and clothing that reflects the consumer's way of wearing. By actively intervening in the products and expressing their creativity in the product, it can be considered as a DIY creation. Second, mimesis in the creation of a fashion design that occurs when consumers imitate the designs of the famous fashion designers. Often similarity and difference are generated, while sometimes objects are newly constructed. Third, deviance means that an item is reborn with a completely different intention from the original shape and function by the intervention of the 'hacker' consumer. For example, the logo and the design of a luxury brand are transformed to satirize its legitimacy. In this paper, we analyzed the cases of fashion design creation as an interactive play and investigated their characteristics and tendencies.

• International Journal of Computer Science & Network Security
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• 제21권8호
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• pp.182-186
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• 2021

The market for smart phones has been booming in the past few years. There are now over 400,000 applications on the Android market. Over 10 billion Android applications have been downloaded from the Android market. Due to the Android popularity, there are now a large number of malicious vendors targeting the platform. Many honest end users are being successfully hacked on a regular basis. In this work, a cloud based reputation security model has been proposed as a solution which greatly mitigates the malicious attacks targeting the Android market. Our security solution takes advantage of the fact that each application in the android platform is assigned a unique user id (UID). Our solution stores the reputation of Android applications in an anti-malware providers' cloud (AM Cloud). The experimental results witness that the proposed model could well identify the reputation index of a given application and hence its potential of being risky or not.

• Current Optics and Photonics
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• 제6권5호
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• pp.453-462
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• 2022

Blockchain technology provides a decentralized and peer-to-peer network, which has the advantages of transparency and immutability. In this paper, a novel secure authentication scheme applying digital holography to blockchain technology is proposed to protect privacy information in network nodes. The transactional information of the node is chained permanently and immutably in the blockchain to ensure network security. By designing a novel two-dimensional (2D) array data structure of the block, a proof of work (PoW) in the blockchain is executed through digital holography technology to verify true authentication and legal block linkage. A hash generated from the proposed algorithm reveals a random number of 2D array data. The real identity of each node in the network cannot be forged by a hacker's tampering because the privacy information of the node is encrypted using digital holography and stored in the blockchain. The reliability and feasibility of the proposed scheme are analyzed with the help of the research results, which evaluate the effectiveness of the proposed method. Forgery by a malicious node is impossible with the proposed method by rejecting a tampered transaction. The principal application is a secure anonymity system guaranteeing privacy information protection for handling of large information.

• International Journal of Computer Science & Network Security
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• 제23권9호
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• pp.134-140
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• 2023

The distributed system is playing a vital role in storing and processing big data and data generation is speedily increasing from various sources every second. Hadoop has a scalable, and efficient distributed system supporting commodity hardware by combining different networks in the topographical locality. Node support in the Hadoop cluster is rapidly increasing in different versions which are facing difficulty to manage clusters. Hadoop does not provide Node management, adding and deletion node futures. Node identification in a cluster completely depends on DHCP servers which managing IP addresses, hostname based on the physical address (MAC) address of each Node. There is a scope to the hacker to theft the data using IP or Hostname and creating a disturbance in a distributed system by adding a malicious node, assigning duplicate IP. This paper proposing novel node management for the distributed system using DNA hiding and generating a unique key using a unique physical address (MAC) of each node and hostname. The proposed mechanism is providing better node management for the Hadoop cluster providing adding and deletion node mechanism by using limited computations and providing better node security from hackers. The main target of this paper is to propose an algorithm to implement Node information hiding in DNA sequences to increase and provide security to the node from hackers.

• 융합보안논문지
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• 제12권1호
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• pp.71-77
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• 2012

정보통신망의 발전과 함께 인터넷 사용 인구와 다양한 개방적 구조의 서비스 이용률이 지속적으로 증가하고 있다. 하지만 서비스 이용자들의 보안의식은 크게 달라지지 않아 서비스 이용자들의 직접적인 입력으로 인터넷상에 노출되는 개인정보가 늘어나고 있는 실정이며 이로 인한 이차적인 침해로 인하여 개인에게 정신적인 피해와 금전적 손괴 심지어는 신체적인 위험을 주는 각종 범죄가 행해지고 있다. 서비스 이용자의 직접적인 입력으로 인한 개인정보 노출을 예방하기 위해서는 게시물을 등록하는 서비스 이용자에게 게시물에 포함된 개인정보와 개인정보 노출의 위험성을 인지시켜 이차적 침해의 위험성이 높은 개인정보는 게시하지 않도록 해야 한다. 본 논문에서는 게시물의 노출 수준과 개인정보자산 가치를 이용하여 각 개인정보의 위험수준을 산정하는 모델과 게시판과 같은 서비스에서 개인정보노출정도에 따른 위험도를 사용하는 방법을 보였다.

• Asian-Australasian Journal of Animal Sciences
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• 제5권4호
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• pp.665-671
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• 1992

To investigate the effects of immunization against somatostatin (SRIF) on growth rate, feed efficiency and carcass quality; forth-eight Yorkshire gilts ($age=37.5{\pm}4.3d,\;wt=8.2{\pm}1.6kg$) were randomly assigned to one of the following three treatments (1) control, (2) bovine serum albumin (BSA) and (3) SRIF. Cyclic SRIF was conjugated to BSA as the antigen containing 1 mg of SRIF diluted in 3 ml of saline. The conjugate was injected subsutaneously together with bacterial cell protein (BP) adjuvant on both sides of the neck of each gilt as the initial injection with three subsequent booster injections. Throughout the experiment all pigs were fed ad libitum a corn-soy diet containing 20% protein. Body weight and feed intake were measured on a weekly basis. All pigs in the experiment were slaughtered when they approached 101 kg body weight on the weekly weigh day. After slaughter, carcass parameters were analyzed to assess carcass quality. Results revealed that there were no differences among SRIF, BSA and control treatments for average daily gain, feed efficiency and feed intake during the first 5 wk of the experiment and from 6 wk to slaughter. The results for carcass analysis indicated that active immunization against SRIF had no effect on fat content, lean yield, water content and Canadian carcass index These data, collectively, suggest that the protocol employed in the present investigation for active immunization against SRIF is not an effective method for the enhancement of pig growth and improvement of feed efficiency and carcass quality.

• 대한임베디드공학회논문지
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• 제12권6호
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• pp.359-368
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• 2017

As the BadUSB is a vulnerability, in which a hacker tampers the firmware area of a USB flash drive. When the BadUSB device is plugged into the USB port of a host system, a malicious code acts automatically. The host system misunderstands the act of the malicious behavior as an normal behaviour for booting the USB device, so it is hard to detect the malicious code. Also, an antivirus software can't detect the tampered firmware because it inspects not the firmware area but the storage area. Because a lot of computer peripherals (such as USB flash drive, keyboard) are connected to host system with the USB protocols, the vulnerability has a negative ripple effect. However, the countermeasure against the vulnerability is not known now. In this paper, we analyze the tampered area of the firmware when a normal USB device is changed to the BadUSB device and propose the countermeasure to verify the integrity of the area when the USB boots. The proposed method consists of two procedures. The first procedure is to verify the integrity of the area which should be fixed even if the firmware is updated. The verification method use hashes, and the target area includes descriptors. The second procedure is to verify the integrity of the changeable area when the firmware is updated. The verification method use code signing, and the target area includes the function area of the firmware. We also propose the update protocol for the proposed structure and verify it to be true through simulation.

• 한국융합학회논문지
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• 제8권2호
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• pp.9-14
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• 2017

지문은 사람마다 고유하며 디지털 데이터로 표현할 수 있는 생체 정보이다. 지문은 사람 몸의 일부이기 때문에, 지문인식은 패스워드나 신분증을 이용한 방법보다 사용하기 편리하다. 더불어, 최근 보급되고 있는 스마트폰은 카메라 및 지문인식 센서가 내장되어 있어서, 바이오메트릭 인증에 대한 사용자의 수요가 증가하고 있다. 하지만 지문은 쉽게 복제가 가능하고 한 번 도용되면 해당 지문을 다시 사용할 수 없는 단점이 있다. 따라서, 바이오메트릭 데이터는 원본을 변형하여 등록 및 인증해야 한다. 기존의 패스코드 입력 방식은 지문인식 센서 외에 별도의 입력 모듈이 필요하기 때문에 경제성과 사용성이 떨어진다. 본 논문에서는 사용성과 경제성을 고려한 취소 가능한 바이오메트릭 인증 기법을 제안한다. 제안한 인증 기법은 취소 가능한 바이오메트릭 템플릿 생성, 바이오메트릭 템플릿 등록 그리고 사용자 인증 프로토콜로 구성되며, 사용된 지문 개수와 스캔 타임에 따라서 보안레벨을 조절할 수 있다. 더불어, 제안한 방법이 전사적 공격과 능동적 공격으로부터 안전함을 분석하였다.

• 융합보안논문지
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• 제1권1호
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• pp.31-35
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• 2001

오늘날의 정보기술 분야의 발전 추세로 판단하여 볼 때에 미래 전쟁은 사이버 전쟁 양상으로 나아갈 것이 필연적이라 판단된다. 사이버 전에서의 공격은 민.군 정보통신체계를 막론하고 가능하며, 특히 국방 C4ISR 체계에 해킹, 바이러스, 전자기파 폭탄 공격이 가해진다면 군사작전은 마비 및 대혼란이 야기될 것이다. 그리고 물리적인 거리, 시간, 날씨, 공간에 구애받지 않고 실시간으로 공격이 가능하기 때문에, 전쟁비용이 초저비용인 반면 공격효과는 인명 엄청난 파급 효과인 정보마비, 국민혼란, 전시공포, 약탈, 범죄 등에 효과적인 공격무기로 높이 평가받고 있다. 본 논문에서는 "사이버 전의 공격무기"에 관하여 소개하고, "주변국들의 사이버 전 공격능력 및 현황"을 고찰하고, 사이버 기술/무기들 중에서 가장 핵심 전력이라 할 수 있는 미래 지식 전쟁에 대비한 최소한의 "사이버 전투 조직과 임무"에 대하여 언급한다.사이버 전투 조직과 임무"에 대하여 언급한다.언급한다.