• KIPS Transactions on Computer and Communication Systems
• /
• 제1권2호
• /
• pp.109-118
• /
• 2012

As a result of the prevalence of smartphone, various mobile services became faster by LTE networks. Because many mobile devices are used more wireless services, heavy signaling traffic for authentication could be generated. Authentication is an important factor in wireless networks to identify devices; it is the start of wireless networks. This paper analyzes previous patterns for more effective authentication in accessing of another external networks. We propose a fast authentication scheme for minimizing of signaling cost between the authentication server and external networks. And we calculate the rate of authentication occurrence in LTE networks using mathematical modeling as well as the change of signaling cost for authentication in various network environments. Finally, we calculate the optimized number of authentication data and show the effectiveness for authentication signaling costs.

• The Transactions of The Korean Institute of Electrical Engineers
• /
• 제66권12호
• /
• pp.1899-1904
• /
• 2017

This paper presents a new one-time password approach generated based on $4{\times}4$ pattern schedule. It demonstrates generation of passkey from initial seed of random codes and mapping out in table pattern schedule which will produce a new form of OTP scheme in protecting information or data. The OTP-2FA has been recognized by many organizations as a landmark to authentication techniques. OTP is the solution to the shortcomings of the traditional user name/password authentication. With the application of OTP, some have benefited already while others have had second thoughts because of some considerations like cryptographic issue. This paper presents a new method of algorithmic approach based on table schedule (grid authentication). The generation of OTP will be based on the random parameters that will be mapped out in rows and columns allowing the user to form the XY values to get the appropriate values. The algorithm will capture the values and extract the predefined characters that produce the OTP codes. This scheme can work in any information verification system to enhance the security, trust and confidence of the user.

• International Journal of Internet, Broadcasting and Communication
• /
• 제8권2호
• /
• pp.38-42
• /
• 2016

In this paper, we propose 3-factor mobile banking authentication scheme applied to face recognition techniques with existing certificate and OTP. An image of the user's face is captured by smart phone camera and its brightness processing of the contour of a face and background by n of X and Y points. Then, distance between the point of eyes, nose and mouth from captured user's face are compared with stored facial features. When the compared results corresponding to the data that stored in a face recognition DB, the user is authenticated.

• Proceedings of the Korea Information Processing Society Conference
• /
• 한국정보처리학회 2012년도 추계학술발표대회
• /
• pp.1045-1048
• /
• 2012

스마트 뱅킹을 사용하는 인구가 늘어나고 있으며 보안상의 위협이 대두되고 있다. 스마트 뱅킹의 경우 작은 보안상의 위험이 큰 금전적인 피해를 줄 수 있기 때문에 강력한 보안이 요구된다. 본 논문에서는 2-Factor 인증과 클라우드에 저장된 인증서를 통해서 스마트 뱅킹 서비스를 안전하게 사용하는 방법을 제안하였다. 인증서 중복저장에 의한 문제점을 해결하고자 인증서를 클라우드 서비스를 통해 제공하고, 저장된 인증서의 제3자에 의한 접근을 막기 위해 2-Factor 인증 기법으로 사용자를 인증한다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 한국정보처리학회 2017년도 추계학술발표대회
• /
• pp.267-270
• /
• 2017

As IT technology developed, storage media also developed. Among them, USB, which is a removable storage medium, is used not only to have several per person but also to work in various companies. Users store valuable and confidential data within USB. As time went on, the need for security increased. In order to solve this security problem, USB has been introduced to allow users to access internal files by inputting ID and password by embedding a security program in USB. However, the method of storing ID and Password inside is low confidentiality and high risk of information leakage. To solve these problems, we propose a 2 factor authentication system using Radius server in addition to login authentication. The proposed system not only improves the authenticity of the device, but also reduces the risk of infringement of personal information when lost. It also encrypts internal files to increase the confidentiality of internal information.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• 제13권2호
• /
• pp.842-848
• /
• 2012

In this paper, as a proper authentication method, we made it authenticate a user who has unauthorized device with using authorized device received from telecommunication company using QR code. We designed a better performance protocol which can authenticate mutually using safer and uncomplicated operations than existing user authentication system. Proposed user authentication system authenticates previously authorized mobile device without any information of client who is requesting to get access from outside, so we can basically prevent attack from hackers. In the future, we can possibly use it as user authentication method in common internet environment or we could study on user unique information instead of mobile device information.

• Journal of KIISE
• /
• 제42권1호
• /
• pp.23-32
• /
• 2015

In the Android market, a large portion of the market share consists of third party applications, but not much research has been performed in this respect. Of these applications, mobile Voice Over IP (VoIP) applications are one of the types of applications that are used the most. In this paper, we focus on user authentication methods for three representative applications of the Google Voice service, which is a famous mobile VoIP application. Then, with respect to the Android file system, we developed a method to store and to send user information for authentication. Finally, we demonstrate a vulnerability in the mechanism and propose an improved mechanism for user authentication by using hash chaining and an elliptic curve Diffie-Hellman key exchange.

• Current Optics and Photonics
• /
• 제1권2호
• /
• pp.90-94
• /
• 2017

Visible light identification (VLID) is a user identification system for a door lock application using smartphone that adopts visible light communication (VLC) technology with the objective of high security, small form factor, and cost effectiveness. The user is verified by the identification application program of a smartphone via fingerprint recognition or password entry. If the authentication succeeds, the corresponding encoded visible light signals are transmitted by a light emitting diode (LED) camera flash. Then, only a small size and low cost photodiode as an outdoor interface converts the light signal to the digital data along with a comparator, and runs the authentication process, and releases the lock. VLID can utilize powerful state-of-the-art hardware and software of smartphones. Furthermore, the door lock system is allowed to be easily upgraded with advanced technologies without its modification and replacement. It can be upgraded by just update the software of smartphone application or replacing the smartphone with the latest one. Additionally, wireless connection between a smartphone and a smart home hub is established automatically via Bluetooth for updating the password and controlling the home devices. In this paper, we demonstrate a prototype VLID door lock system that is built up with LEGO blocks, a photodiode, a comparator circuit, Bluetooth module, and FPGA board.

• Convergence Security Journal
• /
• 제12권3호
• /
• pp.53-58
• /
• 2012

Network Access Control System that is one of the efforts to protect the information of internal applies to effectively control of insider and automatic network management and security. However, it has some problems : spoofing the authorized PC or mobile devices, connect to the internal network using a system that authorized users are away. In addition, information leakage due to malicious code in the same system. So in this paper, Network 2-Factor Access Control System based on RFID security control system is proposed for safety communication environment that performing a two-factor authentication using authorized user and devices to connect to the internal network.

• Journal of Internet Computing and Services
• /
• 제20권6호
• /
• pp.129-135
• /
• 2019

Recently, studies have been conducted to improve the m-commerce process in the NFC-based mobile environment and the increase of the number of smart phones built in NFC. Since authentication is important in mobile electronic payment, FIDO(Fast IDentity Online) and 2 Factor electronic payment system are applied. In addition, block-chains using distributed raw materials have emerged as a representative technology of the fourth industry. In this study, for the mobile gallery auction of the traders using NFC embedded terminal (smartphone) in a small gallery auction in which an unspecified minority participates, password-based authentication and biometric authentication technology (fingerprint) were applied to record transaction details and ownership transfer of the auction participants in electronic payment. And, for the cost reduction and data integrity related to gallery auction, the private distributed director block chain was constructed and used. In addition, domestic and foreign cases applying block chain in the auction field were investigated and compared. In the future, the study will also study the implementation of block chain networks and smart contract and the integration of block chain and artificial intelligence to apply the proposed method.