• Title/Summary/Keyword: 전력분석공격

Search Result 221, Processing Time 0.024 seconds

Cryptanalysis of Bresson-Chevassut-Essiari-Pointcheval′s Key Agreement Scheme for Low-Power Mobile Devices (Bresson-Chevassut-Essiari-Pointcheval의 저전력 모바일 장치를 위한 키 동의 방식의 안전성 분석)

  • Nam Junghyun;Lee Younggyo;Kim Seungioo;Won Dongho
    • Journal of the Korea Institute of Information Security & Cryptology
    • /
    • v.15 no.1
    • /
    • pp.67-76
    • /
    • 2005
  • Bresson et al. have recently proposed an efficient group key agreement scheme well suited for a wireless network environment. Although it is claimed that the proposed scheme is provably secure under certain intractability assumptions, we show in this paper that this claim is unfounded, breaking the allegedly secure scheme in various ways.

Similar Software Code Detection Using Side Channel Leakage in Microcontrollers (단일 부채널 전력 파형을 사용한 마이크로컨트롤러 상에서 소프트웨어 표절 탐지)

  • Kim, Hyun-Jun;Jang, Kyung-Bae;Kim, Kyung-Ho;Seo, Hwa-Jeong
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2020.05a
    • /
    • pp.150-153
    • /
    • 2020
  • 부채널 정보를 사용하여 마이크로 컨트콜러 상에서 표절 된 코드를 탐지하는 새로운 방법을 제시한다. 제안 기법은 애플리케이션을 보호하기 위해 추가로 워터 마킹 할 필요가 없이 코드를 실행하는 마이크로 컨트롤러의 유출데이터를 워터 마크로서 사용 할 수 있다. 두 가지 다른 구현의 각각 하나의 부채널 파형에 대한 절대 상관 계수를 기반으로 분석 한다. 어셈블리 언어로 작성된 다양한 테스트 응용 프로그램을 사용 Xmaga128 마이크로 컨트롤러에서 평가하였다. 제안 기법은 어셈블리 코드를 수정하는 공격자에게도 강력하며 코드에 대한 정보와 입력에 대한 접근이 불가능 하여도 탐지가 가능하다.

A Study on the Competition of the World Women's Handball Championship Using Bigdata : Focused on the top 5 teams of the 2007-2019 World Women's Handball Championship (빅데이터를 활용한 여자핸드볼선수권대회 전력 비교 연구 -2007~2019년 세계여자핸드볼선수권대회 상위 5개팀과 대한민국을 중심으로-)

  • Kang, Yong-Gu;Kwak, Han-Pyong
    • Journal of Industrial Convergence
    • /
    • v.19 no.1
    • /
    • pp.147-158
    • /
    • 2021
  • This study was conducted seven times from 2007 to the 2019 Women's World Handball Championships to analyze and strengthen the strength of the Korean women's handball team through the analysis of the top five countries' strengths. Among the 41 national teams participating in the World Women's Handball Championship, a total of five national teams, including the Netherlands, Norway, Russia, Spain, and France, were selected for the final study. Among the records provided by the International Handball Federation (IHF), the ranking was selected by analyzing the competition records of 41 participating countries, and technical statistics and frequency analysis were conducted using the SPSS/PC+ Ver21.0 program. based on the accumulated records of the top five women's handball competitions, handball attack and defense strategies that can make up for the inferiority in future physical conditions are needed and detailed follow-up studies are needed. Also, we hope to use it as a basic resource for improving the performance of Korean women's handball players and to play a key role in enhancing the level of women's handball at the 2021 Tokyo Olympics.

Improving Non-Profiled Side-Channel Analysis Using Auto-Encoder Based Noise Reduction Preprocessing (비프로파일링 기반 전력 분석의 성능 향상을 위한 오토인코더 기반 잡음 제거 기술)

  • Kwon, Donggeun;Jin, Sunghyun;Kim, HeeSeok;Hong, Seokhie
    • Journal of the Korea Institute of Information Security & Cryptology
    • /
    • v.29 no.3
    • /
    • pp.491-501
    • /
    • 2019
  • In side-channel analysis, which exploit physical leakage from a cryptographic device, deep learning based attack has been significantly interested in recent years. However, most of the state-of-the-art methods have been focused on classifying side-channel information in a profiled scenario where attackers can obtain label of training data. In this paper, we propose a new method based on deep learning to improve non-profiling side-channel attack such as Differential Power Analysis and Correlation Power Analysis. The proposed method is a signal preprocessing technique that reduces the noise in a trace by modifying Auto-Encoder framework to the context of side-channel analysis. Previous work on Denoising Auto-Encoder was trained through randomly added noise by an attacker. In this paper, the proposed model trains Auto-Encoder through the noise from real data using the noise-reduced-label. Also, the proposed method permits to perform non-profiled attack by training only a single neural network. We validate the performance of the noise reduction of the proposed method on real traces collected from ChipWhisperer board. We demonstrate that the proposed method outperforms classic preprocessing methods such as Principal Component Analysis and Linear Discriminant Analysis.

A study on the cyber security assessment modeling of critical infrastructure (핵심기반시설 사이버 보안 평가 모델링 기법 연구)

  • Euom, Ieck-Chae
    • Journal of Digital Convergence
    • /
    • v.17 no.8
    • /
    • pp.105-113
    • /
    • 2019
  • The purpose of this study is to analyze cyber security risk modeling of critical infrastructure, draw out limitations and improvement measures. This paper analyzed cyber security risk modeling of national critical infrastructure like as electricity sector, nuclear power plant, SCADA. This paper analyzed the 26 precedent research cases of risk modeling in electricity sector, nuclear power plant, SCADA. The latest Critical Infrastructure is digitalized and has a windows operating system. Critical Infrastructure should be operated at all times, it is not possible to patch a vulnerability even though find vulnerability. This paper suggest the advanced cyber security modeling characteristic during the life cycle of the critical infrastructure and can be prevented.

A Review on the South Korean Non-nuclear "Plan B": Improvement of its Own Deterrence and Defense Posture (북핵 대응에 대한 한국의 비핵(非核) "플랜 B" 검토: 자체 억제 및 방어태세의 보완)

  • Park, Hwee-rhak
    • Korean Journal of Legislative Studies
    • /
    • v.25 no.3
    • /
    • pp.69-96
    • /
    • 2019
  • This paper is written to suggest several recommendations for South Korea to deter and defend North Korean nuclear threat, when North Korea does not seem to give up its nuclear weapons and the US's extended deterrence including the nuclear umbrella could remain uncertain. For this purpose, it explains key options regarding nuclear deterrence and defense by non-nuclear weapon state. It evaluates the current status of South Korean non-nuclear preparedness against North Korean nuclear threat and provides some recommendations to improve the preparedness. As a result, this paper concluded that South Korean non-nuclear preparedness against North Korean nuclear threat was not that reliable. The preparedness has weakened since the South Korean effort to denuclearize North Korea through negotiations in 2018. In this sense, South Korea could have serious problems in protecting its people from North Korean nuclear threat if the US promise of extended deterrence is not implemented. South Korea should focus on its decapitation operation to North Korean highest leaders in case of North Korean nuclear attack based on a minimal deterrence concept. It should be prepared to conduct preventive strikes instead of preemptive strikes due to North Korea's development of solid fuel ballistic missiles. It should integrate its Ballistic Missile Defense with that of the US forces in Korea. South Korea should make a sincere effort for nuclear civil defense including construction of nuclear shelters.

Performance analysis of volleyball games using the social network and text mining techniques (사회네트워크분석과 텍스트마이닝을 이용한 배구 경기력 분석)

  • Kang, Byounguk;Huh, Mankyu;Choi, Seungbae
    • Journal of the Korean Data and Information Science Society
    • /
    • v.26 no.3
    • /
    • pp.619-630
    • /
    • 2015
  • The purpose of this study is to provide basic information to develop a game strategy plan of a team in a future by identifying the patterns of attack and pass of national men's professional volleyball teams and extracting core key words related with volleyball game performance to evaluate game performance using 'social network analysis' and 'text mining'. As for the analysis result of 'social network analysis' with the whole data, group '0' (6 players) and group '1' (11 players) were partitioned. A point of view the degree centrality and betweenness centrality in 'social network analysis' results, we can know that the group '1' more active game performance than the group '0'. The significant result for two group (win and loss) obtained by 'text mining' according to two groups ('0' and '1') obtained by 'social network analysis' showed significant difference (p-value: 0.001). As for clustering of each network, group '0' had the tendency to score points through set player D and E. In group '1', the player K had the tendency to fail if he attack through 'dig'; players C and D have a good performance through 'set' play.

The Cost Analysis of Network by The Function of Automatic Link Recovery (자동링크복구 기능에 따른 네트워크 비용분석)

  • Song, Myeong-Kyu
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
    • /
    • v.8 no.6
    • /
    • pp.439-444
    • /
    • 2015
  • The Social infrastructure systems such as communication, transportation, power and water supply systems are now facing various types of threats including component failures, security attacks and natural disasters, etc. Whenever such undesirable events occur, it is crucial to recover the system as quickly as possible because the downtime of social infrastructure causes catastrophic consequences in the society. Especially when there is a network link-failure, we need an automatic link-recovery method. This means that customers are aware of network failures that can be recovered before you say that service. In this paper, we analysis the relation between Auto-recovery performance and cost.

Hardware Implementation of Elliptic Curve Scalar Multiplier over GF(2n) with Simple Power Analysis Countermeasure (SPA 대응 기법을 적용한 이진체 위의 타원곡선 스칼라곱셈기의 하드웨어 구현)

  • 김현익;정석원;윤중철
    • Journal of the Institute of Electronics Engineers of Korea SD
    • /
    • v.41 no.9
    • /
    • pp.73-84
    • /
    • 2004
  • This paper suggests a new scalar multiplication algerian to resist SPA which threatens the security of cryptographic primitive on the hardware recently, and discusses how to apply this algerian Our algorithm is better than other SPA countermeasure algorithms aspect to computational efficiency. Since known SPA countermeasure algorithms have dependency of computation. these are difficult to construct parallel architecture efficiently. To solve this problem our algorithm removes dependency and computes a multiplication and a squaring during inversion with parallel architecture in order to minimize loss of performance. We implement hardware logic with VHDL(VHSIC Hardware Description Language) to verify performance. Synthesis tool is Synplify Pro 7.0 and target chip is Xillinx VirtexE XCV2000EFGl156. Total equivalent gate is 60,508 and maximum frequency is 30Mhz. Our scalar multiplier can be applied to digital signature, encryption and decryption, key exchange, etc. It is applied to a embedded-micom it protects SPA and provides efficient computation.

A Study Effective Zigbee Authentication Protocol in Smart Grid Network (스마트 그리드 네트워크에서 효과적인 Zigbee 인증 프로토콜에 관한 연구)

  • Im, Song-Bin;Oh, Young-Hwan
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.36 no.2B
    • /
    • pp.184-194
    • /
    • 2011
  • Security is critically important for smart grid networks that are usually used for the electric power network and IT environments that are opened to attacks, such as, eavesdropping, replay attacks of abnormal messages, forgery of the messages to name a few. ZigBee has emerged as a strong contender for smart grid networks. ZigBee is used for low data rate and low power wireless network applications. To deploy smart grid networks, the collected information requires protection from an adversary over the network in many cases. The security mechanism should be provided for collecting the information over the network. However, the ZigBee protocol has some security weaknesses. In this paper, these weaknesses are discussed and a method to improve security aspect of the ZigBee protocol is presented along with a comparison of the message complexity of the proposed security protocol with that of the current ZigBee protocol.