Video Password Authentication Using Time Reference Points
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Solution Overview
Problem
Traditional text passwords are vulnerable to guessing and have memorability issues, leading to usability problems and the need for more secure and user-friendly authentication methods.
Innovation Solution
The implementation of video-password schemes, which require users to select and remember specific time reference points within an advertisement video, creating a unique video-password that must be re-entered for authentication, utilizing multimedia cues for enhanced security and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional text passwords are used for authentication, then the authentication process is simple and fast, but the security is weak due to vulnerability to guessing and memorability issues
Solution Approach 1:
The patent transforms the authentication parameter from text-based to video-time-based. Instead of remembering text strings, users remember time reference points (timestamps) within a video. This parameter change maintains operational simplicity (selecting times in a video is intuitive) while dramatically improving security (the search space of possible time sequences is vastly larger than text passwords).
Solution Approach 2:
The patent replaces the mechanical/textual input system with a multimedia-based system. Users interact with video content (visual and temporal medium) rather than typing or selecting from text options. This substitution leverages human cognitive strengths in remembering visual and temporal patterns while eliminating weaknesses in text memorization and susceptibility to guessing attacks.
2Reliability
If video-password schemes are implemented, then security and memorability are improved, but the authentication process complexity increases
Solution Approach 1:
The patent makes the video serve multiple functions simultaneously: it acts as both the authentication credential (the password itself is embedded in the video timeline) and the verification mechanism (the system checks if selected times match). This multi-functionality reduces overall system complexity by eliminating the need for separate password storage and verification components.
Solution Approach 2:
The patent uses the video file itself as the authentication medium rather than creating separate password data structures. The time reference points are stored as offsets within the existing video file, leveraging the video's temporal structure directly. This copying approach simplifies data management by reusing the video container for both content delivery and authentication credential storage.
3Reliability
If users are required to select multiple time reference points in a video, then the password strength increases, but the time required for authentication increases
Solution Approach 1:
The patent requires users to select only a subset of time points (e.g., 3-5 key moments) rather than the entire video timeline. This partial action approach provides sufficient security (the combination of few time points creates a large search space) while minimizing authentication time (users don't need to process or select from every possible moment in the video).
Solution Approach 2:
The patent allows users to establish their video-password in advance during a setup phase, where they can carefully select meaningful time reference points from the video. This preliminary action separates the password creation process (where time is less critical) from the authentication process (where speed matters), enabling optimal time point selection without compromising login speed.
Data Source
AI summary
This invention is related to authentication schemes utilizing advertising video-passwords, which require the user to watch and remember parts of a given advertisement video. Different embodiments of the invention can utilize just time reference point information, or can optionally include grid element, click point, tag phrase, or a combination of both click point and tag phrase information. A reference video-password is defined based on the time reference point information, and optionally with grid element, click point, or tag phrase information. Subsequently, the user will attempt authentication and the candidate video-password will be defined with the associated time reference point determined from the user's input, and optionally with grid element, click point, or tag phrase information received from the user. The system would then authenticate the user based on the comparison result between the reference video-password and the candidate video-password.