Journal of the Korea Convergence Society (한국융합학회논문지)

Korea Convergence Society (한국융합학회)
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File Sharing Algorithm based Mutual Cooperation using Smart Device

스마트 기기를 이용한 상호 협력 기반 파일 공유 시스템

  • Jeong, Pil-Seong (Dept. of Information Technology Communication, Myongji College) ;
  • Cho, Yang-Hyun (Division of Computer & Mechatronics Engineering, Sahmyook University)
  • 정필성 (명지전문대학 정보통신공학과) ;
  • 조양현 (삼육대학교 컴퓨터.메카트로닉스공학부)
  • Received : 2018.10.02
  • Accepted : 2018.12.20
  • Published : 2018.12.28
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Abstract

With the development of information and communication technology, we have been able to access and manage documents containing corporate information anytime and anywhere using smart devices. As the work environment changes to smart work, the scope of information distribution is expanded, and more efforts are needed to manage security. This paper proposes a file sharing system that enables users who have smart devices to manage and share files through mutual cooperation. Proposed file sharing system, the user can add a partner to share files with each other when uploading files kept by spliting the part of the file and the other uses an algorithm to store on the server. After converting the file to be uploaded to base64, it splits it into encrypted files among users, and then transmits it to the server when it wants to share. It is easy to manage and control files using dedicated application to view files and has high security. Using the system developed with proposed algorithm, it is possible to build a system with high efficiency even for SMEs(small and medium-sized enterprises) that can not pay much money for security.

정보통신 기술의 발전으로 우리는 스마트 기기를 이용하여 언제 어디서나 기업정보가 담긴 문서에 접근하고 관리가 가능하게 되었다. 근무 환경이 스마트워크 근무 환경으로 변화함에 따라서 정보의 유통범위가 넓어짐과 동시에 보안을 위한 관리에 많은 노력이 필요하게 되었다. 본 논문은 스마트 기기를 소유한 사용자들끼리 상호 협력을 통해 파일을 관리하고 공유할 수 있는 파일 공유 시스템을 제안한다. 제안하는 파일 공유 시스템은 사용자가 파일을 업로드 할 때 함께 파일을 공유할 상대를 추가하면 파일의 일부분을 서로 나눠서 보관하고 나머지는 서버에 보관하는 알고리즘을 사용한다. 업로드 할 파일을 base64로 변환 후 사용자들끼리 암호화된 파일로 나누어 가진 후 공유를 원할 때 서버로 전송한다. 파일을 보기 위해서 전용 애플리케이션을 사용하여 파일 관리와 통제가 쉬우며 높은 보안성을 가진다. 본 논문에서 개발한 시스템을 이용할 경우 보안에 많은 돈을 지불하기 어려운 중소기업에서도 효율성 높은 시스템을 구축할 수 있다.

Keywords

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Fig. 1. Proposed service model

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Fig. 2. User registration flow

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Fig. 3. User login flow

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Fig. 4. User registration screen

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Fig. 5. User list screen

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Fig. 6. Login screen and main screen

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Fig. 7. File upload screen and notification screen

Table 1. Javascript API by Cordova

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Table 2. USERS table scheme

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Table 3. IMAGES table scheme

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Table 4. RESULTS table scheme

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Table 5. Comparison between proposed algorithm and other algorithm

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