• Proceedings of the CALSEC Conference
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• 2001.02a
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• pp.305-311
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• 2001

Recently, XML(extensible Markup Language) Document is widely accepted as the standard for electronic documents in the electronic commerce. Therefore, a security mechanism for XML documents must be provided In the first place. ESES(ETRI Secure I-commerce Services) provides a system designed specifically for securing XML documents and existing non-XML documents that are exchanged in the Electronic Commerce and is essential to various electronic commerce platform as a fundamental system. In this paper, we provide an overview of these aspects of the ESES and design and implemented the secure I-Commerce Platform to support security services such as authentication, integrity and confidentiality for Electronic Document Interchange.

• The Journal of Korean Association of Computer Education
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• v.7 no.4
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• pp.61-66
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• 2004

Electronic commerce that use Mobile Phone according as the radio Internet develops rapidly and performance of Mobile Phone develops is activated. It is said that electronic commerce that use these Mobile Phone is M-Commerce. Also, the most important controversial point is data security or an user certification technology at these electronic commerce, there are research reactor WPKI and WTLS about this technology. However, when transmit message again after sign electronic documents in Mobile Phone, if do not encrypt, danger exists to be exposed to outside. Therefore, in this paper, designed system to encipher document that handle and handles user certification applying XML electronic sign technique in Mobile environment. Prevent of XML electronic sign in Mobile environment through this paper, and can stave off danger from outside by enciphering electronic sign document.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.6
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• pp.1435-1447
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• 2015

Finance Companies are operating a security solution such as E-DRM(Enterprise-Digital Right Management), Personal information search, DLP(Data Loss Prevention), Security of printed paper, Internet network separation system, Privacy monitoring system for privacy leakage prevention by insiders. However, privacy leakages are occurring continuously and it is difficult to the association analysis about relating to the company's internal and external distribution of private document. Because log system operated in the separate and independent security solutions. This paper propose a systematic chains that can correlatively analyze business systems and log among heterogeneous security solutions organically and consistently based on security documents. Also, we suggest methods of efficient detection for Life-Cycle management plan about security documents that are created in the personal computer or by individual through the business system and distribution channel tracking about security documents contained privacy.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.16 no.1
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• pp.87-96
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• 2006

In this paper, we examine general digital evidence collection process which is according to RFC3227 document[l], and establish specific steps for memory information collection. Besides, we include memory dump process to existing digital evidence collection process, and examine privacy information through dumping real user's memory and collecting pagefile which is part of virtual memory system. Especially, we discovered sensitive data which is like password and userID that exist in the half of pagefiles. Moreover, we suggest each analysis technique and computer forensic process for memory information and virtual memory.

• International Journal of Computer Science & Network Security
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• v.22 no.3
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• pp.364-374
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• 2022

Health information systems (HIS) are facing security challenges on data privacy and confidentiality. These challenges are based on centralized system architecture creating a target for malicious attacks. Blockchain technology has emerged as a trending technology with the potential to improve data security. Despite the effectiveness of this technology, still HIS are suffering from a lack of data privacy and confidentiality. This paper presents a blockchain-based data storage security architecture integrated with an e-Health care system to improve its security. The study employed a qualitative research method where data were collected using interviews and document analysis. Execute-order-validate Fabric's storage security architecture was implemented through private data collection, which is the combination of the actual private data stored in a private state, and a hash of that private data to guarantee data privacy. The key findings of this research show that data privacy and confidentiality are attained through a private data policy. Network peers are decentralized with blockchain only for hash storage to avoid storage challenges. Cost-effectiveness is achieved through data storage within a database of a Hyperledger Fabric. The overall performance of Fabric is higher than Ethereum. Ethereum's low performance is due to its execute-validate architecture which has high computation power with transaction inconsistencies. E-Health care system administrators should be trained and engaged with blockchain architectural designs for health data storage security. Health policymakers should be aware of blockchain technology and make use of the findings. The scientific contribution of this study is based on; cost-effectiveness of secured data storage, the use of hashes of network data stored in each node, and low energy consumption of Fabric leading to high performance.

• The Journal of Information Systems
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• v.10 no.1
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• pp.127-146
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• 2001

The area of business applications in the internet are extended enormously in result of fast development of computing and communication technologies, increase of internet use, and use of intranet/extranet in enterprise information system. Widely spread the use of the internet, there are various applications for Business to Business (B to B) or Business to Customer(B to C) model that are based on the intranet or extranet. This paper designed and implemented the Web-based Electronic Bidding System for Business to Business (B to B) model. The technical issues of electronic bidding system in the internet are involved in the connection between web client and server, electronic data interchange for the contract document, and security solution during the bidding and contracting processes. The web-based electronic bidding system in this paper is implemented using Java applet and servlet as a connection interface for web client and server, XML/EDI-based documents for a bid and a contract, and bidding server and notary server for enhancing the security using PKI(Public Key Infrastructure)-based public key cryptography, digital signature and Certification Authority(CA).

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.8
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• pp.1441-1447
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• 2008

It is possible to transfer huge data in mobile device by advancing mobile technology, and so in this base, various services are offered. Especially, E-commerce service is offering on mobile environment, and this service is based on XML(eXtensible Markup Language) Signature. XML Signature assure that process integrity, message authentication, and/or signer authentication. And WIPI(Wireless Internet Protocol for Interoperability) that is mobile internet integration platform was proposed to integrate mobile device platform. However, because WIPI transmits and exchanges message by tort of XML base, encryption of XML document and necessity of XML signature are increasing because of weakness of security. Therefor in this paper, Encryption and XML signature module of XML document that satisfy standard requirement in WIPI platform base design and implementation. System that was proposed in this paper used standard encryption and XML signature algorithm and supports safe encryption and XML signature through doing security simulation applied various algorithm for XML document of mobile environment.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05c
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• pp.2121-2124
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• 2003

정보보호시스템의 국제공통평가기준인 CC(또는 ISO/IEC 1540B)에서는 평가용 문서(즉, 제출물)에 대한 세부지침을 포함하지 않고 있으므로, CC기반 평가체계를 구축하기 위해서는 문서 스키마(즉, 목차와 내용요구사항)를 개발해야 한다. 본 논문에서는 CC기반 평가체계에서 활용할 수 있는 문서 스키마를 개발하였다. CC내의 보증클래스로부터 Weakest precondition함수, 문서량 축소규칙, 문서 종속성 분석방법을 적용하여 문서스키마와 DTD를 개발하였다. 본 연구의 접근방법은 소프트웨어 품질의 평가체계에서 사용할 문서스키마 또는 DTD를 개발하는데 응용될 수 있다.

• Convergence Security Journal
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• v.10 no.4
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• pp.39-48
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• 2010

In a complex, secure IT system environment there will be groups of data that be segregated from one another, yet reside on the same system. Users of the system will have varying degrees of access to specific data. The Configuration Management(CM) of the information architecture, the physical architecture, user privileges and application security policies increases the complexity for operations, maintenance and security staff. This pager describes(current work to merge the capabilities of a network CM toll with those of a Computer Aided System Engineering(CASE) tool. The rigour of Systems Engineering(SE) modelling techniques can be used to deal with the complexities of multi-level information security. The SE logical and physical models of the same system are readily tailorable to document the critical components of both the information architecture and physical architecture that needs to be managed. Linking a user-friendly, physical CM tool with the extended capabilities of a CASE tool provide the basis for improved configuration management of secure IT systems.

• Journal of National Security and Military Science
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• s.13
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• pp.109-136
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• 2016

Define the importance and role of the acquisition strategy based on the Defense Acquisition Management System, diagnose and analyze the actual state of document preparation. We analyzed the timing and details of the basic strategy of the project in 2015 and suggested a supplementary plan to improve the efficiency of Military force improvement projects in conjunction with the Defense Planning and Management System. It is necessary to reduce the preparation period including the policy decision making process and then divide it into planning and programming stages to complement the role of acquisition strategy. In order to apply these improvements, the necessary revision of laws and regulations to be reviewed is referred to, enabling continuous research.