• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2003.12a
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• pp.13-20
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• 2003

웹 서비스는 기존 분산 처리기술과 인터넷 기술에 기반한 기술이며, 이기종 시스템간의 데이터를 자연스럽게 공유하고 통신하는 것을 목적으로 등장한 기술이다. 또한 웹서비스 기술로 구현된 프로그램은 필요한 곳에서 proxy object를 생성해서 사용할 수 있으므로, 다른 개발 환경에서 작성된 프로그램이라도 호출해서 사용할 수 있게 되었다. 본 논문에서는 프로그램을 공유하는 과정에서 발생할 수 있는 보안 요구사항을 도출해보고 보안을 위해 XML Signature와 XML Encryption을 적용한 안전한 프로그램 공유 시스템을 제시해 본다.

• Review of KIISC
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• v.16 no.5
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• pp.72-83
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• 2006

XML기반 웹서비스의 활성화와 더불어 효율적인 데이터 호출 및 통합을 위해, XML 문서 안에 웹서비스 호출 노드를 내장할 수 있는 Active XML(AXML) 문서가 개발되었다. 본 논문에서는 기존 전송계층 보안 프로토콜 및 WS-Security의 제한점을 방지하기 위한, AXML 문서의 내장형 웹서비스 호출과 XML-Encryption 및 XML-Signature 보안 표준을 통합한 데이터 암호화 및 전자서명 방식에 대해 소개한다. 또한, '전자의료 시스템' 예제를 통해 AXML 문서를 이용한 중첩된 웹서비스 호출 및 쿼리위임 방식에 대해 소개한다. 마지막으로, 기존 보안성 정형분석 방법의 확장을 통한 AXML 시스템의 보안 취약 가능성에 대해 언급하고자 한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.7 no.5
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• pp.972-977
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• 2003

XML has weakness problems on document modulation and elimination of data Because of the XML gives priority to present data format, XML signature, XML encryption, or XML access control is provided to overcome those weakness problems. However, structured XML efficiency contravention problem occurred from XML encryption and absence of protection from DID attack are still remains unsolved. In this paper, we suggests the XML schema that satisfies both validity and encryption. The DTD is unnecessary because XML schema supports Well-Formed XML documents and include meta information. Also XML schema has possibility to generate each XML document dynamically and because of self efficiency investigator rule, it has an advantage on extendability of DID based encryption of XML documents.

• Convergence Security Journal
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• v.6 no.1
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• pp.75-82
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• 2006

This paper proposes CPR(Computer-based patient record) system that is utilized in Ubiquitous environment, establish security policy by analyzing security limitation of system and design suitable security system in CPR system. The present study designed a CPR system and, for the development of a security system, established security policies for the CPR system through analyzing the operating environment and vulnerability in security and designed a security system implementing the policies. The security system supporting CPR system is composed of authentication system, XML documentation and encryption of medical information and network security system.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.592-596
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• 2002

Can speak that DTD is meta data that define meaning of expressed data on XML document. Therefore, In case DTD information is damaged this information to base security of XML document dangerous. Not that attach digital signature on XML document at send-receive process of XML document in this research, proposed method to attach digital signature to DTD. As reading DTD file to end first, do parsing, and store abstracted element or attribute entitys in hash table. Read hash table and achieve message digest if parsing is ended. Compose and create digital signature with individual key after achievement. When sign digital, problem that create entirely other digest cost because do not examine about order that change at message digest process is happened. This solved by method to create DTD's digital signature using DOM that can embody tree structure for standard structure and document.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.15 no.6
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• pp.93-103
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• 2005

As the usage of XML documents increases the requirement of security for XML documents is growing. Especially it is very important to solve the problem of access control to XML object which shares in the environment where various users connect to each others. In this paper, we propose the access control model and mechanism which is combined with role hierarchy in the RBAC and hierarchical key derivation/assign method for the access to XML object. So we implement the access control mechanism by including hierarchical key derivation method. The technique, we proposed, gives not only the benefit in management which RBAC provides in access control to XML objects, but also it ran help derive a lower layer key from the higher layer user's. This feature decrease the number of keys managed in each role hierarchy in comparison with previous methods.

• Journal of Information Technology Services
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• v.3 no.2
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• pp.85-98
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• 2004

As the e-Commerce based on the XML technology is getting bigger, user authentication, integrity, non-repudiation and confidentiality has become important for security. Since the XML technology is widely used for exchanging information among the Internet e-business systems, the security of XML documents is essentially required and XML digital signature should be supported. To support the digital signature of XML documents, W3C proposed the XML-Signature specification as an international standard that describes five transform algorithms. In this paper, we design and implement a XML/PKI based digital tax invoice system. Our system supports the five transforming algorithms defined in the XML-Signature specification and exchanges digital tax invoices among enterprises securely. We design and implement the flexible and efficient system consists of reusable components using CBD(Component Based Development).

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.45 no.6
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• pp.147-153
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• 2008

Talking about reliability of I-commerce, the security services such as data integrity and non-repudiation are the most crucial elements. This thesis implemented the real estate contract digital signature system that makes this real estate E-commerce Possible. The technical background used in this thesis for the security services is XML (extensible Markup Language) signature technique, which is a signature technique that applies XML on the existing digital signature algorithm. The advantage of using XML signature technique is that it is very efficient since signing for the partial data is possible, and it is easy to apply to the XML-based I-commerce system which is most commonly used.

• Proceedings of the Korea Contents Association Conference
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• 2005.11a
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• pp.200-204
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• 2005

POS system that become that is supply net administration and computerization fetters of customer management that become point in distribution network constructed database and use XML-Encryption that is certificate techniques of PKI and standard of security for security that is XML's shortcoming and design distributed processing POS system using XML for data integration by introduction of Ubiquitous concept. This POS system has four advantages. First, high portability Second, efficiency of data transmission. Third, improvement of data process speed. Fourth, security of data.

• International Journal of Computer Science & Network Security
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• v.22 no.5
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• pp.89-96
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• 2022

Security is still a great concern to this day, albeit we have come a long way to mitigate its numerous threats. No-SQL databases are rapidly becoming the new database de-facto, as more and more apps are being developed every day. However, No-SQL databases security could be improved. In this paper, we discuss a way to improve the security of XML-based databases with the use of trust labels to be used as an access control model.