ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 O2TR: Offline OTR Messaging System under Network Disruption
Cited 1 time in scopus Download 17 time Share share facebook twitter linkedin kakaostory
저자
Mahdi Daghmehchi Firoozjaei, 김민창, 송재승, 김형식
발행일
201905
출처
Computers & Security, v.82, pp.227-240
ISSN
0167-4048
출판사
Elsevier Advanced Technology
DOI
https://dx.doi.org/10.1016/j.cose.2018.12.013
초록
Providing a secure and efficient communication system under network disruption without a trusted third party remains a challenging issue. To develop a secure and efficient system in such situations, we extend the conventional Off-The-Record (OTR) protocol into a new protocol named offline OTR (O 2 TR). O 2 TR provides end-to-end security between users without requiring the assumption that they are persistently connected to each other. To show the feasibility of the proposed protocol, we implemented a prototype to support O 2 TR based on the Gajim XMMP instant messaging platform. Our experiments showed that O 2 TR can be used reliably even when the corresponding network party is temporarily broken down. Moreover, O 2 TR provides an efficient way to resume private sessions which is about 34% faster than the original OTR. We also proved the secrecy of O 2 TR using an automated verification tool called AVISPA.
키워드
Key management, OTR, Privacy-preserving, Reliability, Security
KSP 제안 키워드
Broken down, Communication system, End to End(E2E), Key management, O 2, Privacy-preserving, Trusted Third Party, Verification Tool, automated verification, efficient communication, end-to-end security