Phone-Based Multi-Factor Authentication for Audio-Only Meeting Access
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Solution Overview
Problem
Existing authentication methods for audio-only callers joining video-enabled virtual meetings are inadequate, as they lack mechanisms to verify the identity of callers without access to secondary devices or client-side features, making them vulnerable to unauthorized access.
Innovation Solution
Implementing multi-factor authentication techniques that verify the identity of audio-only callers using authentication codes generated based on information associated with their phone devices, such as caller ID, contact records, and device ownership, without requiring secondary devices or tokens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional authentication methods are used for audio-only callers, then ease of operation is maintained, but security is compromised due to lack of identity verification
Solution Approach 1:
The authentication process is segmented into multiple independent verification steps: (1) receiving the caller's identifier, (2) retrieving contact information from stored records, (3) verifying the caller against the contact record, and (4) generating an authentication code. This segmentation allows security verification to be performed without requiring the caller to perform complex actions, maintaining ease of operation while improving security.
Solution Approach 2:
The system performs authentication automatically by retrieving contact information from stored records and comparing it with the incoming caller's identifier without requiring the caller to manually verify their identity. The authentication code is generated and transmitted automatically, eliminating the need for secondary devices or manual verification steps while maintaining security.
2Reliability
If multi-factor authentication is implemented for audio-only callers, then security is improved, but device complexity increases due to additional verification steps
Solution Approach 1:
The system uses the phone device's existing identifier (caller ID) for multiple purposes: both as the communication address and as the authentication credential. The contact information stored in the system serves dual purposes as both contact data and verification data. This multi-functionality allows multi-factor authentication to be implemented without adding complex hardware or software components to the phone device.
Solution Approach 2:
The server acts as an intermediary that performs the complex authentication logic, retrieving contact information from stored records and comparing it with the incoming caller's identifier. This shifts the computational complexity from the phone device to the server, allowing the authentication process to be secure without increasing the complexity of the caller's device.
3Reliability
If authentication codes are generated based on phone device information, then unauthorized access is prevented, but loss of time occurs during the verification process
Solution Approach 1:
Contact information is pre-stored in the system during the contact setup phase, including authentication credentials associated with the caller's identifier. When authentication is needed, the system simply retrieves this pre-stored information and compares it with the incoming caller's identifier, eliminating the need for real-time verification of external factors and reducing authentication time while maintaining security.
Data Source
AI summary
Multi-factor authentication techniques are used to verify an identity of an audio-only caller requesting to join a video-enabled virtual meeting. A request for an audio-only caller to join a video-enabled virtual meeting is received from a phone device of the audio-only caller, in which the audio-only caller is using the phone device to call into the video-enabled virtual meeting. An authentication request is transmitted to the phone device to verify an identity of the audio-only caller. A response to the authentication request is received from the phone device and includes an authentication code generated based on the request for the audio-only caller to join the video-enabled virtual meeting. The identity of the audio-only caller is then verified using the authentication code and information associated with the phone device, and the request for the audio-only caller to join the video-enabled virtual meeting is allowed or denied based on the verification.