Biometric Media Encryption for Secure Messaging
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Solution Overview
Problem
Existing messaging services allow recipients to forward multimedia messages to third parties, potentially leading to unintended sharing of private data, as users can capture and share images or videos despite intended privacy settings.
Innovation Solution
A method and system that encrypts media files using biometric features of the intended recipient, allowing decryption only by the recipient's biometric data, and partially reveals encrypted content through spatiotemporal correlation with user interactions, preventing easy capture or replication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If media files are sent through messaging services, then communication efficiency is improved, but security is worsened because recipients can forward messages to third parties
Solution Approach 1:
The media file is divided into multiple encrypted segments, each requiring different biometric credentials to decrypt. The file cannot be accessed or forwarded without providing the correct biometric data, preventing unauthorized sharing while maintaining communication efficiency.
Solution Approach 2:
Biometric verification serves as an intermediary mechanism between the sender and recipient. The system requires the recipient to provide biometric data (fingerprint, facial recognition, etc.) as a mediator to decrypt and access the media file, ensuring that only the intended recipient can view it.
2Reliability
If media files are encrypted with biometric features, then security is improved, but device complexity is worsened
Solution Approach 1:
The system automatically extracts biometric features from the recipient's profile picture or contact information without requiring manual input. The biometric extraction and encryption processes are handled self-service by the messaging application, reducing the burden on the user while maintaining high security.
Solution Approach 2:
The system changes the encryption parameters dynamically based on the recipient's biometric data. Instead of using a fixed encryption key, the system generates encryption parameters that are derived from the recipient's unique biometric features, making the system more secure without requiring complex manual configuration.
3Reliability
If biometric verification is required for decryption, then unauthorized access is prevented, but ease of operation is worsened
Solution Approach 1:
The biometric verification process is performed preliminarily before the media file is even displayed to the user. The system extracts and verifies biometric data in advance, ensuring that the user can view the media file smoothly without encountering additional authentication steps during playback.
Solution Approach 2:
The system replaces manual authentication mechanisms with automated biometric verification. Instead of requiring users to enter passwords or PINs, the system uses automatic biometric recognition (fingerprint sensors, facial recognition) to verify identity, making the process more convenient while maintaining security.
Data Source
AI summary
A method of encrypting a target media file that comprises using a processor of a client device associated with a sender for executing a code for: designating a target media file, and receiving from the sender a user selection indicative of an addressee automatically extracting at least one biometric feature of the addressee from at least one image associated with the addressee, using the at least one biometric feature to encrypt the target media file for creating an encrypted target media file, and forwarding an additional client device associated with addressee a message with access information to the encrypted target media file.