• Journal of Digital Contents Society
• /
• v.17 no.5
• /
• pp.329-338
• /
• 2016

As the creative economy is considered important recently, learner-centered IP(Intellectual Property) education has proliferated rapidly to universities, and there are greater attention and demand on IP education. On the other hand, there are lack of curriculums and an accreditation for IP education. This paper is to propose IP education module and emphasize the need of the accreditation for IP education and its authentication plan. This paper will also show the need of specialists and educational curriculum in the field of IP, the current status and the analyse of the IP education, and the trend of IP courses in intellectual-property-leading universities. It subsequently examines the domestic education accreditation system and the National Competency Standard(NCS) curriculum and suggests the IP education 8 courses model as a curriculum management model, the standard curriculum of the IP educational system, and the instructional module.

• Journal of Digital Convergence
• /
• v.13 no.5
• /
• pp.219-226
• /
• 2015

OTP(One Time Password) is for user authentication of Internet banking and users should carry their security card or OTP generator to use OTP. If they lost their security card or OTP generator, there is at risk for OTP leak. This paper suggests a new User Authentication Framework using personal health information from diverse technology of u-Health. It will cover the problem of OTP loss and illegal reproduction A User Authentication Framework is worthy of use because it uses various combinations of user's physical condition which is inconstant. This protocol is also safe from leaking information due to encryption of reliable institutes. Users don't need to bring their OTP generator or card when they use bank, shopping mall, and game site where existing OTP is used.

• Journal of Digital Convergence
• /
• v.9 no.4
• /
• pp.143-156
• /
• 2011

To accomplish these purposes, First, this research divided hallmark of the environment friendly agricultural products into organic products and pesticide-free products and participants are classified as having promotion or prevention regulatory focus. In addition, consumer value type is categorized into value of social psychology and functional value. Second, construal level divided into high and low on the relationships between the consumer value and purchase intention. The main factors of the consumer value such as value of social psychology and functional value were found from the previous studies. This study is meaningful that the fit of regulatory focus between hallmark of organic products and pesticide-free products in environment friendly agricultural products. The regulatory relevance could moderate the level of persuasion knowledge activation. Also, This research is meaningful that the fit of construal level theory between Consumer value and purchase intention by person's psychological personality. The construal level relevance could moderate the level of marketing activation.

• Journal of Digital Convergence
• /
• v.19 no.10
• /
• pp.287-293
• /
• 2021

Recently, public certificates issued by nationally-recognized certification bodies have been abolished, and internet companies have issued their own common certificates as certification authority. The Electronic Signature Act was amended in a way to assign responsibility to Internet companies. As the use of a joint certificate issued by Internet companies as a certification authority is allowed, it is expected that the fraud damage caused by the theft of public key certificates will increase. We propose an authentication model that can be used in a security gateway that combines PKI with a blockchain with integrity and security. and to evaluate its practicality, we evaluated the security of the authentication model using Sugeno's hierarchical fuzzy integral, an evaluation method that excludes human subjectivity and importance degree using Delphi method by expert group. The blockchain-based joint certificate is expected to be used as a base technology for services that prevent reckless issuance and misuse of public certificates, and secure security and convenience.

• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.26 no.5
• /
• pp.793-801
• /
• 2022

Most Bluetooth devices are commonly used in various ways these days, but they can be often lost due to small-size devices. However, most Bluetooth protocol do not provide authentication functions to legitimate owners, and thus someone who obtains the lost Bluetooth device can easily connect to their smart devices to use it. In this paper, we propose NBAS can authenticates legitimate owners using NFT on lossy Bluetooth devices.NBAS generates a digital wallet on the blockchain using the decentralized network Ethereum blockchain and facilitating the MAC address of the Bluetooth device in the digital wallet. The owner of the wallet uses a private key to certify the Bluetooth device using NFT. The initial pairing time of NBAS was 10.25 sec, but the reconnection time was 0.007 sec similar to the conventional method, and the pairing rejection time for unapproved users was 1.58 sec on average. Therefore, the proposed NBAS effectively shows the device authentication over the conventional Bluetooth.

• Journal of Digital Convergence
• /
• v.12 no.1
• /
• pp.389-395
• /
• 2014

In a biometric signature scheme, a user's biometric key is used to sign the document. It also requires the user be authenticated with biometric recognition method, prior to signing the document. Because the biometric recognition is launched every time the signature session started, it is not suitable for electronic commerce applications such as shopping malls where large number of documents to sign are required. Therefore, to commercialize biometric based signature schemes, the new proxy signature scheme is needed to ease the burden of the signer. In the proxy signature scheme, the signer can delegate signing activities to trustful third parties. In this study, the biometric based signature delegation method is proposed. The proposed scheme is suitable for applications where a lot of signing are required. It is consisted of biometric key generation, PKI based mutual authentication, signature generation and verification protocols.

• The KIPS Transactions:PartC
• /
• v.14C no.3 s.113
• /
• pp.221-228
• /
• 2007

For the usage of the different standard technology among DRM vendors, the DRM technologies in today could not guarantee the interoperability between the digital contents and digital devices. While users have been guaranteed the protection of contents, they have to put up with the limitation and inconvenience. The Superdistribution methods that InterTrust has proposed is the content distribution technology which is possible to use the content only by the user authentication with the license regardless of the acquisition of the DRM contents. However, it need a additional license with re-authentication from DRM server when the original contents need to be moved to other devices from the own device. In this paper, to reduce the inconveniences of re-authentication and re-issue procedures of the license and continually to protect the rights of contents on the offline, we propose the DRM system that creates domain between home devices and enable users to freely transfer contents with the domain.

• The Transactions of the Korea Information Processing Society
• /
• v.5 no.8
• /
• pp.2083-2090
• /
• 1998

In this paper, we propose two authentication exchange schemes which combine public key-based mutual authentication with a Diffie-Hellman key derivation exchange. The security of key exchange of the proposed schemes depends on the discrete logarithm problem. The ,securtly of the etity authentication depends on that of the signature mechanism to be used in the proposed scheme. In comparisun with the Kerberos, X.509 exchanges, and ISO 3-way authentication protocol, the proposed schemes are not only simple and efficient. but also are resistant to the full range of replay and interceptiun attacks.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2011.11a
• /
• pp.380-383
• /
• 2011

데이터 은닉 기술은 디지털 콘텐츠에 기밀 정보를 비가시적으로 삽입하는 기술로서, 소유권 증명, 저작권 보호, 방송 모니터링, 콘텐츠 인증 등의 다양한 목적으로 활용되고 있다. 본 논문에서는 오디오 콘텐츠의 무결성을 인증하고 위조 영역을 탐지하기 위한 가역 워터마킹 기반의 블록 단위의 오디오 콘텐츠 인증 기법을 제안한다. 제안한 기법은 오디오를 작은 크기의 블록으로 나누고 각 블록 단위로 워터마크를 삽입하여 무결성 인증을 수행한다. 또한 차이값 히스토그램 기반 가역 워터마킹 알고리즘을 적용함으로써 높은 품질을 유지하면서도 완전한 원본으로의 복원을 가능케 하였다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2011.11a
• /
• pp.302-305
• /
• 2011

멀티미디어 콘텐츠는 디지털 데이터의 특성상 위 변조 또는 불법유통 등의 문제가 발생할 수 있다. 특히 의료 및 군사, 예술 분야 등 많은 부분에서 멀티미디어 데이터의 보안성이 중요한 이슈가 되고 있다. 본 논문에서는 이러한 기술적 요구에 맞추어 이미지의 무결성을 인증할 수 있는 워터마킹 알고리즘을 제안한다. 제안하는 알고리즘은 JPEG 이미지 압축 과정에서 추가적인 처리를 통해 이미지에 인증코드를 삽입하고, 디코딩 과정에서 삽입 인증코드 추출 및 비교 인증코드 재생성을 통해 이미지의 원본 여부를 블록 단위로 판단할 수 있다. 제안 알고리즘을 통해 생성된 JPEG 이미지 표준 인코딩 이미지 대비 2.44dB 의 화질 저하를 보였고 1.63%의 압축률 차이를 보였다.