Media Capture Authentication Using Real-Time Verification Cues
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Solution Overview
Problem
Existing methods for verifying the authenticity of digital media, such as photos and videos, are inadequate in preventing deepfake attacks and tampering, as they rely on untrustworthy assumptions about user behavior and are vulnerable to sophisticated manipulation techniques.
Innovation Solution
A client-server system that verifies media authenticity by instructing capturing devices to implement operation modes, such as changing frame rates or emitting specific light, and checking if the captured media reflects these changes, using a server to ensure compliance within a predetermined time frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real-time verification of media authenticity is implemented, then deepfake attacks are prevented, but system complexity increases
Solution Approach 1:
The system performs preliminary actions by instructing the capturing device to implement operation modes and capture verification data before the media is potentially manipulated. The server receives the media and verifies authenticity by checking compliance with the instructed operation modes, preventing deepfake attacks before they can succeed.
Solution Approach 2:
The server acts as an intermediary between the capturing device and the verification process. It transmits instructions to the capturing device, receives the captured media, and performs the verification by determining compliance with the instructed operation modes, thereby managing system complexity centrally.
2Measurement precision
If operation mode changes are instructed to capturing devices, then verification accuracy improves, but processing time increases
Solution Approach 1:
The verification process uses periodic action by instructing the capturing device to capture media at specific intervals or in specific portions (first portion, second portion). The server verifies compliance with operation modes for these periodic captures, maintaining verification accuracy while managing processing time through structured intervals.
Solution Approach 2:
The server transmits instructions to the capturing device in advance, specifying operation modes to be implemented during media capture. This preliminary instruction allows the capturing device to prepare and execute verification-friendly capture parameters before the actual verification occurs, reducing processing time during the verification phase.
Data Source
AI summary
A method, computer program product and a system comprising: a capturing-device configured to continuously capture media, a real-time instruction module configured to provide instructions to the capturing-device causing it to change, in real-time, an operation mode while capturing a media segment, a signing module configured to create, in real-time, signature for the media segments and transmit the to a storage module retaining pairs of a signature of a media segment, and respective instructions that were provided to the capturing-device while capturing the media segment. The media authenticity verification module receives a media segment to determine authenticity of the media segment by obtaining a respective pair of a signature and instructions; utilizing the signature to ensure that the media segment was not manipulated after being captured; and verifying that the media segment complies with the instructions, whereby protecting against potential deepfake attacks.