• Title/Summary/Keyword: hacker

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Security Improvement of File System Filter Driver in Windows Embedded OS

  • Seong, Yeon Sang;Cho, Chaeho;Jun, Young Pyo;Won, Yoojae
    • Journal of Information Processing Systems
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    • v.17 no.4
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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.

Creations of interactive fashion design as 'Play' ('놀이' 관점에서 본 인터랙티브 패션디자인의 창작 특성)

  • Chung, Soo-Jin;Yim, Eun-Hyuk
    • Journal of the Korea Fashion and Costume Design Association
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    • v.21 no.2
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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.

Palliates the Attack by Hacker of Android Application through UID and Antimalware Cloud Computing

  • Zamani, Abu Sarwar;Ahmad, Sultan;Uddin, Mohammed Yousuf;Ansari, Asrar Ahmad;Akhtar, Shagufta
    • International Journal of Computer Science & Network Security
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    • v.21 no.8
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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.

Privacy Information Protection Applying Digital Holography to Blockchain

  • Jeon, Seok Hee;Gil, Sang Keun
    • Current Optics and Photonics
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    • v.6 no.5
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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.

A Novel Node Management in Hadoop Cluster by using DNA

  • Balaraju. J;PVRD. Prasada Rao
    • International Journal of Computer Science & Network Security
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    • v.23 no.9
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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.

A Study on a Prevention Method for Personal Information Exposure (개인정보 노출을 예방하는 방법에 관한 연구)

  • Lee, Ki-Sung;Ahn, Hyo-Beom;Lee, Su-Youn
    • Convergence Security Journal
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    • v.12 no.1
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    • pp.71-77
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    • 2012
  • Along with the development of Internet services such as Social Network Service (SNS) and blog Service, the privacy is very important in these services. But personal data is not safety from exposure to internet service. If personal data is leak out, the privacy is disclosed to hacker or illegal person and the personal information can be used in a cyber crime as phishing attacks. Therefore, the model and method that protects to disclose privacy is requested in SNS and blog services. The model must evaluate degree of exposure to protect privacy and the method protects personal information from Internet services. This paper proposes a model to evaluate risk for privacy with property of personal data and exposure level of internet service such as bulletin board. Also, we show a method using degree of risk to evaluate with a proposed model at bulletin board.

AN INVESTIGATION OF IMMUNIZATION AGAINST SOMATOSTATIN BY MEASURING GROWTH AND CARCASS PARAMETERS IN GILTS

  • Du, Z.L.;Hacker, R.R.
    • Asian-Australasian Journal of Animal Sciences
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    • v.5 no.4
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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.

Analysis and Countermeasure for BadUSB Vulnerability (BadUSB 취약점 분석 및 대응 방안)

  • Seo, Jun-Ho;Moon, Jong-Sub
    • IEMEK Journal of Embedded Systems and Applications
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    • v.12 no.6
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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.

The Biometric Authentication Scheme Capable of Multilevel Security Control (보안레벨 조절이 가능한 바이오메트릭 인증 기법)

  • Yun, Sunghyun
    • Journal of the Korea Convergence Society
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    • v.8 no.2
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    • pp.9-14
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    • 2017
  • A fingerprint is unique to each person and can be represented as a digital form. As the fingerprint is the part of human body, fingerprint recognition is much more easy to use and secure rather than using password or resident card for user authentication. In addition, as the newly released smart phones have built-in camera and fingerprint sensors, the demand for biometric authentication is increasing rapidly. But, the drawback is that the fingerprint can be counterfeited easily and if it's exposed to the hacker, it cannot be reused. Thus, the original fingerprint template should be transformed for registration and authentication purposes. Existing transformation functions use passcode to transform the original template to the cancelable form. Additional module is needed to input the passcode, so it requires more cost and lowers the usability. In this paper, we propose biometric authentication scheme that is economic and easy to use. The proposed scheme is consisted of cancelable biometric template creation, registration and user authentication protocols, and can control several security levels by configuring the number of fingerprints and scan times. We also analyzed that our scheme is secure against the brute-force attack and the active attacks.

Future Cyber Information Warfare (사이버 정보전 준비 해야)

  • 오제상
    • Convergence Security Journal
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    • v.1 no.1
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    • pp.31-35
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    • 2001
  • Currently if we are to make a thought to depend on our fast developing information technology, a future war is necessarily to be made a situation of a cyber information warfare. A attacker in the cyber information warfare is able to make attack a military or a civil information and communication system, especially if a attack of a hacker, a virus or a electromagnetic pulse bomb at a military C4ISR system is able to make a confusion or a interruption in military operations, they are available to attack as a real time with non restrictions of physical distance, time, weather and space. While a expenditure of carrying out the cyber information warfares is the lowest expenditure, a effect of carrying out the cyber information warfares is the greatest effect in side of a interruption of information, a confusion, a terror, a pillage and crime of the people. This paper is to introduce "weapons of cyber information warfares", "offence capability of cyber information warfares about several nations" and to propose "a cyber information warfare organization" or the future knowledge warfare. the future knowledge warfare.

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