• Journal of the Korea Institute of Information Security & Cryptology
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• v.9 no.4
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• pp.3-10
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• 1999

More concerns are concentrated in finite fields arithmetic as finite fields being applied for Elliptic curve cryptosystem coding theory and etc. Finite fields arithmetic is affected in represen -tation of those. Optimal normal basis is effective in hardware implementation and polynomial field which is effective in the basis conversion with optimal normal basis and show that the arithmetic of finite field with the basis is effective in software implementation.

• International Journal of Computer Science & Network Security
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• v.21 no.4
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• pp.264-271
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• 2021

From an information security perspective, protecting sensitive data requires utilizing algorithms which resist theoretical attacks. However, treating an algorithm in a purely mathematical fashion or in other words abstracting away from its physical (hardware or software) implementation opens the door to various real-world security threats. In the modern age of electronics, cryptanalysis attempts to reveal secret information based on cryptosystem physical properties, rather than exploiting the theoretical weaknesses in the implemented cryptographic algorithm. The correlation power attack (CPA) is a Side-Channel Analysis attack used to reveal sensitive information based on the power leakages of a device. In this paper, we present a power Hacking technique to demonstrate how a power analysis can be exploited to reveal the secret information in AES crypto-core. In the proposed case study, we explain the main techniques that can break the security of the considered crypto-core by using CPA attack. Using two cryptographic devices, FPGA and 8051 microcontrollers, the experimental attack procedure shows that the AES hardware implementation has better resistance against power attack compared to the software one. On the other hand, we remark that the efficiency of CPA attack depends statistically on the implementation and the power model used for the power prediction.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.5B
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• pp.490-501
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• 2011

Software streaming technology is a service method which can support several application software via streaming in networks. In this paper, we propose a platform independent PESS(performance Enhanced Software Streaming) technology. We design and implement the technology based on Java language. The main features in the implemented system are both platforms to be used in multiple operating systems in addition to Windows system and enhanced performance. In the implemented streaming method, application software is placed on the server and only necessary packs are transmitted in an instant. By virtual file system and clients' virtual registry, if necessary, the users' request is processed by transmitting a very small pack unit. Therefore, server load can be reduced and the streaming speed can also be improved. We present the implementation results and evaluate several performance characteristics of the proposed system.

• Journal of KIISE:Software and Applications
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• v.33 no.3
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• pp.267-276
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• 2006

IS 15504 and CMMI, etc are already proven models as a framework to improve the maturity of enterprise software development. However, these process maturity models can't present the detail and practical methods with which people can enhance the development competence and efficiency of an enterprise. Each company or organization should develop its own model or tailor the above models to make them suitable to its unique environment such as product or technology domain, scale of business or organization and cultural environment, etc for the practical application. This study introduces experiences that organizational and technical capability was reinforced based on our own process capability improvement model to improve software development strength in Samsung Electronics. We modeled our own improvement model which is expanded from IS 15504 against our experience. Our SPI model expanded its capability to organizational and technical issues including newly introduced capability level for evaluating its implementation. We expect that our study would give contribution for presenting industry experience and reference model for reinforcing software development competence.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2003.11a
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• pp.297-300
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• 2003

This paper considers formal verification methods for enhancing software reliability. The formal method verifies that a software is correctly implemented according to its specification by using a mathematical formalism. This paper presents a partial survey on the formal methods and discusses possible applications for the improved software implementation. Finally, some topics are remarked as further studies.

• IE interfaces
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• v.10 no.1
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• pp.135-143
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• 1997

The importance of training for NC, CNC and Machining Center has been greatly increased. This paper presents implementation of a DNC(Direct Numerical Control) operating software for educational system. This system is able to connect 8-32 CNCs to Control PC with RS232 multi-port serial card. Therefore, it allows much efficiency in training even after costs are considered. The KISCO DNC S/W for above system includes various communication functions, communication parameters setting, program editor and user-friendly environment. This software was developed with C and Windows programming. It was proved in function and stability by iterative field tests.

• Proceedings of the IEEK Conference
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• 2001.06a
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• pp.229-232
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• 2001

This paper has analyzed an architecture of DSLAM, system software Architecture, an external interface of DSLAM module, Message transfer of each task. Also in this paper, message and structures between SNMP Agent and each internal board are defined, and from the defined messages and data structures, message processing between boards is designed and implemented

• Proceedings of the KAIS Fall Conference
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• 2008.11a
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• pp.32-35
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• 2008

본 논문은 포털 사이트의 효율적인 광고 제공을 위한 자연어처리 기반의 키워드 광고 시스템을 제안한다. 사용자의 질의에 대한 형태소 분석 결과를 사용하여, 기존의 키워드 정합에 의한 광고 시스템보다 재현율을 향상시킬 수 있었다. 또한, 웹 기반 키워드 광고 뿐 아니라 메신저를 통한 대화 내용 기반 키워드 광고도 제안한다.

• Journal of Korea Game Society
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• v.1 no.1
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• pp.73-79
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• 2001

The objective of this paper is to systematically establish the development of game software through the fusion of game implementation and component methodology. The development of game software has inconsistently accomplished without the consistent frame for the analysis and design of game development in the domestic environments. Therefore in case of the development of game software based on game component, although a lot of resources were required in the initial the accumulation of experience and the technology of reuse lead to the efficiency of the maintenance ultimately.

• The Transactions of the Korean Institute of Electrical Engineers B
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• v.48 no.1
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• pp.1-6
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• 1999

Object-oriented porgramming is a major trend in computer software because it increases the flexibility of large scale software system. In this paper the advantages of the new software approach for optimal design of induction motor are demonstrated with an implementation of the motor design and characteristics analysis functions. And evolution strategy is used in optimization process.