Secure Image Sharing via Facial Recognition and Encryption
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Solution Overview
Problem
There is a need for secure image sharing systems that can protect confidential images from unauthorized access, especially when shared over untrusted channels, ensuring that only designated users can view the images.
Innovation Solution
A system comprising a source computing device that encrypts images before sharing, using a symmetric key encrypted with the recipient's public key, and a client device that authenticates users through facial recognition before decrypting and displaying the images, ensuring only authorized users can access the decrypted content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If images are shared over untrusted channels (public networks, social media platforms), then image sharing capability and accessibility are improved, but security and confidentiality of the images deteriorate
Solution Approach 1:
The image is divided into multiple encrypted segments or shares that are distributed across different locations or recipients. No single segment reveals the complete image, and reconstruction requires combining multiple segments with proper authentication, thus enabling sharing while maintaining security on untrusted channels
Solution Approach 2:
Encryption and authentication mechanisms are applied to the image before it is shared across untrusted channels. The image is pre-processed with cryptographic protection, watermarks, or digital rights management controls, ensuring security is established prior to transmission rather than attempted afterward
2Ease of operation
If traditional third-party platform control is used to ensure confidentiality, then access control is simplified, but system complexity and dependency on external platforms increase
Solution Approach 1:
The system implements self-service security mechanisms where the image itself carries authentication data, digital watermarks, or embedded cryptographic elements that enable automatic verification of authorized recipients without requiring complex third-party platform intervention or manual access control procedures
3Reliability
If facial recognition authentication is implemented before image display, then unauthorized access is prevented, but processing time and computational resources increase
Solution Approach 1:
Facial recognition templates or biometric data are captured and stored in advance during device setup or previous authorized sessions. This preliminary authentication data is then used for rapid comparison during actual image access, significantly reducing the time required for authentication while maintaining high security
Solution Approach 2:
Complex multi-step authentication procedures are replaced with biometric facial recognition that uses optical and computational algorithms for rapid verification. The mechanical or procedural complexity of traditional authentication (passwords, tokens, multiple factors) is substituted with a more efficient biological characteristic-based system
Data Source
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AI summary
A method and device for securely sharing images across untrusted channels includes downloading an encrypted image from a remote server to a computing device. The encrypted image may be encrypted at the time of uploading by another user. The current user of the computing device is authenticated using a facial recognition procedure. If the current user is authenticated and is determined to be authorized to view the decrypted image, the encrypted image is decrypted and displayed to the user. If the user becomes unauthenticated (e.g., the user leaves the computing device or another user replaces the current user), the encrypted image is displayed in place of the encrypted image such that the decrypted image is displayed only for authorized persons physically present at the computing device.