Dynamic Attribute Synchronization for Secure Authorization Verification
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Solution Overview
Problem
Existing authorization verification methods require queries to an authorization center to verify authenticity and involve machine-readable data, making them vulnerable to unauthorized copying and requiring additional security measures.
Innovation Solution
The method uses electronic reproduction devices with user interfaces to alter reproduction attributes such as visual and audio attributes in real-time, synchronizing them between two devices for verification, eliminating the need for machine-readable data and center queries, and preventing unauthorized copying by ensuring dynamic and time-synchronized changes in these attributes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If machine-readable data is used for authorization verification, then verification can be automated, but the system becomes vulnerable to unauthorized copying
Solution Approach 1:
The patent applies dynamics by continuously changing the reproduction attributes (color, orientation, position, font, volume, pitch) of the authorization data over time. These attributes are altered according to time-varying functions that are synchronized between the user's device and the verifier's device, making static copying ineffective while maintaining automated verification through dynamic attribute comparison
Solution Approach 2:
The patent changes multiple parameters of the authorization data simultaneously - visual parameters (color, orientation, position, font size) and audio parameters (volume, pitch, tone length). These parameter changes occur dynamically over time and are synchronized between devices, allowing automated verification while preventing unauthorized copying since copied data cannot replicate the time-synchronized parameter changes
2Reliability
If queries to an authorization center are required for verification, then authenticity can be confirmed, but the process becomes slower and more complex
Solution Approach 1:
The patent implements self-service by enabling the verifier to independently verify authorization authenticity using only the synchronized reproduction attributes from their own device and the user's device. The verification process does not require external authorization center queries - the time-synchronized dynamic attribute matching itself serves as the authenticity confirmation mechanism, eliminating time delays and reducing system complexity
3Reliability
If additional security measures are implemented to prevent copying, then security is improved, but device complexity increases
Solution Approach 1:
The security mechanism uses dynamic time-varying attribute changes that are synchronized between devices through internal clocks or synchronization signals. This dynamic approach provides strong anti-copying security without requiring complex additional hardware or software measures - the security is embedded in the time-synchronized reproduction process itself, maintaining simplicity while ensuring reliability
Data Source
AI summary
The invention relates to an authorization verification method and devices suited therefor, which play back authorization data via a user interface (11) of an electronic playback device (1). During the playback of authorization data via the user interface (11) of a first playback device (1), the playback attributes are modified. The playback of authorization data via the user interface (11) of the first playback device (1) is compared with the playback of reference data via a user interface (21) of a second electronic playback device (2). Authorization is granted in the event the playback of authorization data via the user interface (11) of the first playback device (1) matches the playback of reference data via the user interface (21) of the second playback device (2), and modifications of the playback attributes are, in essence, time-synchronized. The dynamic modification of the playback attributes during the playback of authorization data and playback of the reference data render practically impossible the unauthorized copying of image contents or audio contents for falsifying an authorization. In addition, a simultaneous playback of authorization data and reference data render unnecessary inquiries made to an authorization center (3).