Multimodal Biometric Profiling via Steganographic Embedding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current biometric profiling technologies face challenges such as unauthorized interception and modification of biometric data during transmission, limited storage capacity, and bandwidth constraints, which compromise the security and usability of biometric templates.
Innovation Solution
A multimodal biometric profiling system that employs steganography to encrypt and conceal biometric templates based on security requirements, reducing the size of biometric information and enabling secure storage and transmission by embedding template bits in cover images using a threshold determination module and error encoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If biometric data is transmitted through networks, then authentication functionality is enabled, but security is compromised due to unauthorized interception and modification
Solution Approach 1:
The patent embeds biometric template data within cover images using steganography, creating a nested structure where the biometric data is concealed inside the image file. This allows the biometric information to be transmitted and stored without being exposed to network interception, as it is hidden within the innocuous cover image.
Solution Approach 2:
The patent uses cover images as intermediary carriers to transmit biometric template data. Instead of transmitting biometric data directly through vulnerable networks, the data is embedded within cover images that serve as mediators, protecting the biometric information from unauthorized access while enabling transmission.
2Quantity of substance
If biometric templates are stored in databases, then authentication capability is provided, but storage capacity is limited and bandwidth is constrained
Solution Approach 1:
The patent enables cover images to serve multiple functions: they act as both the cover object and the carrier for biometric template data. This multi-functionality allows the same image file to be used for visual purposes while simultaneously storing biometric information, eliminating the need for separate storage infrastructure.
Solution Approach 2:
The patent creates a copy of the biometric template data and embeds it within the cover image. This allows the biometric information to be stored in the image file itself rather than requiring separate database storage, reducing infrastructure complexity while maintaining authentication capability.
3Reliability
If biometric data is concealed using steganography, then security is improved, but data embedding capacity is limited
Solution Approach 1:
The patent modifies parameters of the cover image, specifically altering pixel values and color components to embed biometric template data. By changing image parameters such as luminance and chrominance values, the system can embed larger amounts of biometric information while maintaining the visual quality and imperceptibility of the cover image.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Multimodal biometric profiling may include receiving a cover image and a biometric template for a person. An indication of a security requirement related to biometric profiling for the person may be received. A threshold value may be determined based on the indicated security requirement. The threshold value may be used to limit a number of biometric template bits of the biometric template that are embedded in a predetermined bit position of a cover image pixel of the cover image based on cover image intensity associated with the predetermined bit position.