• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.3
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• pp.754-760
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• 2014

Push Notification Service technology is to provide platform competition rather than unit-based technology. In Korea, only the type of a service using the technology provided by this main platform has been studied and the study of the based technology has not been developed consistently. In this paper, new types of Push Notification Service capable of domestic technology acquisition was proposed and designed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.5
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• pp.1289-1295
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• 2008

Recently, it is progressing a study for supporting various application services using OpenAPI(Application Program Interface). But it is not enough a study related OpenAPI(Open Application Interface) to access many collected context data of sensor networks for ubiquitous application services. Therefor, this paper presents Pull/Push service model based on sensor networks, and implements OpenAPI fer Pull/push application services. And, we design and implement OpenAPI using web service for Pull application services. This Pull OpenAPI supports users the context data of temperature and humidity using the remote service based on .Net framework in sensor networks. And, we design and implement OpenAPI using TCP/IP socket interface for Push application services in sensor network. This Push OpenAPI provides users a state of temperature, humidity collecting in sensor networks. Consequently, user can develop easily various application services as supporting OpenAPI instead of closed application interface of sensor networks based on existed specific database.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.16 no.2
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• pp.445-466
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• 2022

As everything linking to the internet, people can subscribe to various services from a service provider to facilitate their lives through the Internet of Things (IoT). An obligatory thing for the service provider is that they should push the service data safely and timely to multiple IoT terminal devices regularly after the IoT devices accomplishing the service subscription. In order to control the service message received by the legal devices as while as keep the confidentiality of the data, the public key encryption algorithm is utilized. While the existing public encryption algorithms for push service are too complicated for IoT devices, and almost of the current subscription schemes based on push mode are relying on centralized organization which may suffer from centralized entity corruption or single point of failure. To address these issues, we design a secure subscription-push service scheme based on blockchain and edge computing in this article, which is decentralized with secure architecture for the subscription and push of service. Furthermore, inspired by broadcast encryption and multicast encryption, a new encryption algorithm is designed to manage the permissions of IoT devices together with smart contract, and to protect the confidentiality of push messages, which is suitable for IoT devices. The edge computing nodes, in the new system architecture, maintain the blockchain to ensure the impartiality and traceability of service subscriptions and push messages, meanwhile undertake some calculations for IoT devices with limited computing power. The legalities of subscription services are guaranteed by verifying subscription tags on the smart contract. Lastly, the analysis indicates that the scheme is reliable, and the proposed encryption algorithm is safe and efficient.

• The Journal of Information Systems
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• v.30 no.4
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• pp.71-94
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• 2021

Purpose The purpose of this study is to verify impacts of factors, representing Push-Pull-Mooring(PPM) on switch intention to OTT(Over-The-Top) service in demand for content and to find relationship between factors through empirical analysis. Design/methodology/approach This study designed a research model by deriving factors affecting the intention to switch on OTT service based on the Push-Pull-Mooring framework and researches on OTT service. To test the hypothesis, a total of 357 responses were collected from individuals with experience in using OTT service and analyzed using SPSS26 and SmartPLS3.0. Findings According to the empirical analysis result, this study confirmed that the push, pull, and mooring factors proposed in this study had a significant effect on switching intention on OTT service. In addition, this study confirmed that both low switching cost and need for variety had a significant effect except for hypothesis H8.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.10a
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• pp.1033-1034
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• 2015

A message transmission method in Push fashions over the Internet has a limit repidly to manage task and support system in a remote control site that has received a risk information. This paper proposes a push notification structure based on the quality of service(QoS) in order to send the diversity disaster informations toward the remote site. As the proposed structure accommodated the previous heterogeneous system, it provides internet services.

• Journal of the Korea Society of Computer and Information
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• v.20 no.3
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• pp.115-124
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• 2015

In this paper we analyse the previous (Quality of Services) and QoE(Quality of Experience) methods, and propose a high reliable network system framework and its service forwarding method that is able to provide seamless N-Screen services for proliferating disaster informations. The service satisfaction measurement, i.e., QoE, of contents consumers in N-screens services is going to be important the factor in disaster information proliferation because N-Screen services in the previous methods based on multi devices only focused on information transmission. The proposed system around these services is composed of a disaster information process framework for accepting user's service requirement, push service modules for minimizing the number of packets to be caused when carrying out the push service, and a push service controller for maximizing QoE measures. In order to provide a seamless N-Screen service on diverse screens, such as smartphone, PC, and big screen, we also have Open API(Application Programming Interface) functions. Through these results, we expect to evaluate QoS and QoE quality in the seamless N-Screen service.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10c
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• pp.132-134
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• 2000

무선 인터넷의 급속한 발전과 더불어 모바일 인터넷에서 요구되는 기능이 점점 다양화되어 가고 있다. 특히 WAP)Wireless Application Protocol)상에서 지원되는 Push 서비스의 요구가 늘어나고 있다. 본 논문에서는 WAP상에서 사용하는 Push message의 보다 쉬운 구현을 위해 Push 서비스의 구조와 동작 원리를 이해하고 Push Content Generator의 설계에 대해 기술한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2017.01a
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• pp.141-142
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• 2017

기존의 상용화된 인체공학적 자세교정 의자나 의학적 치료 솔루션은 상대적으로 고가이며 사용자친화적인 접근성을 제공하기 어려웠다. 본 논문에서는 이 문제점을 해결하기 위해 소형 방석에 압력 센서를 접목하고 사용자에게 교정 상태를 상기시키는 시스템을 연구하고 이를 더 사용자 접근성이 좋은 방식을 고안하고자 한다. PushBullet[1] API를 사용하여 Non-Client Application 중심의 Multi-Device 기반 Push notification 기능을 연구하고 이와 기존의 바른 앉은 자세를 유지하는 자세교정 시스템을 결합한 방식을 제안한다.

• Annual Conference of KIPS
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• 2003.05c
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• pp.1925-1928
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• 2003

음성과 데이터가 같이 사용될 수 없는 2.5G의 통신형 PDA를 위한 PUSH 서비스를 제안하였고, 이 PUSH 서비스와 이동 단말기의 특성을 고려한 보안 프로토콜을 현재 상용화된 알고리즘을 적절히 적용하여 구현하였다. 제안한 PUSH 서비스는 유선 인터넷 망과는 오프라인 상태인 음성 대기용 클라이언트 단말기와 망 접속 방식으로 SMS(short message service)를 이용하였으며, SMS 메시지 수신 후에는 단말기 상에서 SMS의 데이터를 분석하여 RAS(remote access service)를 통해 데이터 채널을 생성하여 서버측의 데이터가 PUSH 되도록 구현하였다. 보안 프로토콜은 통신횟수를 줄이기 위하여 비표 형식을 취했으며, SMS와 데이터의 2개의 채널을 가지는 2중 통신 방법을 이용하였다. 이를 위하여 보안 알고리즘 중 처리속도가 빠르고 적은 메모리 공간을 사용하는 SEED와 MD5 알고리즘을 사용하였으며, 더욱더 안전한 키 분배를 위하여 인증과 보안의 효과를 가지는 RSA알고리즘도 이용하였다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.7 no.4
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• pp.130-135
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• 2008

Broadcasting services using Internet and Internet protocol have been developed actively. In this paper, push service technologies based on tunneling protocol and for the case of base stations using private IP addresses are proposed. This could be very proper to the broadcasting services for location & traffic information and disaster relief.