Research Article
ACS: An Efficient Messaging System with Strong Tracking-Resistance
@INPROCEEDINGS{10.1007/978-3-031-24386-8_4, author={Zhefeng Nan and Changbo Tian and Yafei Sang and Guangze Zhao}, title={ACS: An Efficient Messaging System with Strong Tracking-Resistance}, proceedings={Collaborative Computing: Networking, Applications and Worksharing. 18th EAI International Conference, CollaborateCom 2022, Hangzhou, China, October 15-16, 2022, Proceedings, Part II}, proceedings_a={COLLABORATECOM PART 2}, year={2023}, month={1}, keywords={Anti-tracking network Anonymous communication Message segmentation Offline messaging Privacy protection Cyber security}, doi={10.1007/978-3-031-24386-8_4} }- Zhefeng Nan
Changbo Tian
Yafei Sang
Guangze Zhao
Year: 2023
ACS: An Efficient Messaging System with Strong Tracking-Resistance
COLLABORATECOM PART 2
Springer
DOI: 10.1007/978-3-031-24386-8_4
Abstract
The increasingly rampant network monitoring and tracing bring a huge challenge on the privacy protection, because even if the message data is encrypted, the communication privacy is difficult to be hidden. Existing anonymous systems sacrifice anonymity for efficient communication, or vice versa. In this paper, we presentACS, an efficient messaging system which leverages a two-layer framework to provide tracking-resistance. The first layer is theentry layer, which consists ofentry serversto relay messages. The second layer is theexchange layer, which consists ofexchange serversto exchange messages. Users divide its message into different shares and send each share to exchange server via a randomly chosen entry server. Users only provide their pseudonyms to exchange servers for message exchange. Then, entry servers have no information about the message exchange, and exchange servers have no information about users’ identities. The exchange servers also provide message storage service in case that the receiver of these messages are offline, in which way, the communication becomes more simple and flexible. The experimental results show that our proposed system guarantees the strong tracking-resistance and high communication efficiency.
