Towards Seamless Authentication for Zoom-Based Online Teaching and Meeting

TL;DR

This paper proposes a camera authentication method based on PRNU to enhance security in Zoom meetings, aiming for seamless, participant-independent verification to prevent unauthorized access and disturbances.

Contribution

It introduces a novel PRNU-based camera authentication technique for Zoom meetings, addressing security issues without requiring participant cooperation.

Findings

Small-scale experiment validates the PRNU-based authentication approach.

Method effectively identifies the camera used in Zoom sessions.

Enhances security by preventing unauthorized access and Zoom bombing.

Abstract

The lockdowns and travel restrictions in current coronavirus pandemic situation has replaced face-to-face teaching and meeting with online teaching and meeting. Recently, the video conferencing tool Zoom has become extremely popular for its simple-to-use feature and low network bandwith requirement. However, Zoom has serious security and privacy issues. Due to weak authentication mechanisms, unauthorized persons are invading Zoom sessions and creating disturbances (known as Zoom bombing). In this paper, we propose a preliminary work towards a seamless authentication mechanism for Zoom-based teaching and meeting. Our method is based on PRNU (Photo Response Non Uniformity)-based camera authentication, which can authenticate the camera of a device used in a Zoom meeting without requiring any assistance from the participants (e.g., needing the participant to provide biometric). Results from a small-scale experiment validates the proposed method.