Extended DRM for Secure Evidence Recording
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Solution Overview
Problem
Current surveillance and recording technologies face challenges in providing tamper-proof and user-friendly solutions for securing evidence of criminal activities, as individuals are reluctant to intervene or record incidents due to fear of retaliation, and existing DRM systems lack robust protection against tampering and unauthorized access.
Innovation Solution
A method and device utilizing an extended Digital Rights Management (DRM) concept that allows users to securely record and store activities by locating a Rights Issuer, retrieving recording and storing instructions, and transmitting protected content to a trusted storage, ensuring integrity and security through cryptographic keys and meta-data addition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If surveillance cameras are deployed to record criminal activities, then evidence collection capability is improved, but personal integrity rights deteriorate and implementation cost increases
Solution Approach 1:
The patent introduces a trusted intermediary system consisting of a rights issuer and trusted storage that mediates between the recorder and the recorded content. The intermediary issues recording rights and manages secure storage, allowing evidence collection without direct surveillance camera deployment in public spaces, thus preserving personal integrity while enabling crime recording.
Solution Approach 2:
The patent extracts the surveillance function from traditional fixed cameras and relocates it to mobile user equipment with DRM protection. This allows evidence recording capability to be distributed to individuals rather than requiring centralized surveillance infrastructure, reducing personal integrity violations while maintaining evidence collection effectiveness.
2Reliability
If individuals record criminal activities personally, then evidence availability is improved, but personal safety risk increases
Solution Approach 1:
The patent applies preliminary anti-action by providing cryptographic protection and trusted storage mechanisms before the recording incident occurs. The DRM system pre-establishes security measures that protect both the recorded content and the recorder's identity, reducing personal safety risks while ensuring evidence availability.
Solution Approach 2:
The trusted storage acts as an intermediary that receives and secures recorded content without revealing the recorder's identity to potential threats. This mediation protects individuals from retaliation while maintaining evidence availability for law enforcement.
3Reliability
If DRM protection is applied to recorded content, then security against tampering is improved, but system complexity increases
Solution Approach 1:
The patent leverages the existing multi-functionality of DRM systems, which were originally designed for content protection, and applies them to evidence recording. By reusing established cryptographic and rights management infrastructure, the system achieves high security against tampering without proportionally increasing complexity.
Data Source
AI summary
A method for achieving a secure recording and storing of a recorded activity is based on an extended Digital Rights Management (DRM) system. A recording and storing procedure is initiated, in response to recognizing one or more triggers at a device hosted by a user equipment. On the basis of the one or more triggers a Rights Issuer is located, and a Recording and Storing Instruction (RSI) is retrieved from the RI, using an existing DRM standard. Based on the RSI, a trusted storage for storing the recorded activity is located, and one or more recording procedures, involving one or more recording equipments, are activated and managed by the device. Before the recorded content is forwarded to the trusted storage, a protected content is generated from the recorded content, according to content of the RSI.