Secure Evidence Capture Method for Mobile Devices
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Solution Overview
Problem
Existing methods for capturing and processing audiovisual and multimedia information from user computing devices, such as mobile phones, fail to ensure the integrity and security of the evidence, as the information can be modified or erased by users, and prior art lacks mechanisms to certify that the evidence has not been manipulated.
Innovation Solution
A method that captures audiovisual and multimedia information, acquires data on the date and time of capture, performs real-time comparisons to ensure data integrity, encrypts the information for secure transmission, and sends it to a server via a secure channel, ensuring that only unaltered evidence is used as certified proof.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If audiovisual information is stored in user-accessible memory for later use, then ease of access is improved, but data integrity is worsened because users can manipulate or erase the information
Solution Approach 1:
The patent divides the evidence storage system into two separate segments: a user-accessible memory for normal operations and a secure, user-inaccessible memory for storing evidentiary information. This segmentation allows users to easily access their data while preventing them from manipulating the evidence, thus resolving the contradiction between ease of access and data integrity.
Solution Approach 2:
The patent introduces a control module as an intermediary that acts as a gatekeeper between the user and the evidence storage system. This intermediary automatically stores evidentiary information in secure memory and manages the evidence lifecycle without user intervention, preventing manipulation while maintaining ease of operation for legitimate users.
2Reliability
If real-time comparison and verification mechanisms are implemented, then evidence reliability is improved, but processing time is worsened
Solution Approach 1:
The patent performs verification actions in advance by automatically storing evidentiary information in secure memory at the moment of capture, before any potential manipulation can occur. The control module immediately compares and verifies the evidence against predefined criteria and stores it with metadata, eliminating the need for time-consuming verification later while ensuring reliability.
Solution Approach 2:
The system performs self-verification through automated control modules that independently compare captured information against stored evidence and verify integrity without requiring external intervention. This self-service mechanism ensures reliability while minimizing processing time by eliminating manual verification steps.
3Reliability
If encryption is applied to all stored information, then security is improved, but processing speed is worsened
Solution Approach 1:
The patent applies encryption selectively rather than universally - only to evidentiary information stored in secure memory, while leaving other user data unencrypted. This local quality approach ensures high security for critical evidence while maintaining normal processing speeds for non-sensitive operations, resolving the contradiction between security and processing speed.
Data Source
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AI summary
The invention relates to a method which comprises capturing audiovisual and/or multimedia information by means of a processing unit of a user computing device (1), storing said information in a first memory (3) and sending said audiovisual and/or multimedia information via a secure channel to a server (6) for storing same as evidence, wherein said sending is conditioned by comparing said information stored in said memory (3) with the captured information which is received at the same time by a control module (4) of said processing unit and checking the match.