Steganographic Password Storage Using Least Significant Bit Encoding
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Solution Overview
Problem
Current steganography methods for storing passwords lack effective and secure mechanisms to conceal and retrieve credentials without compromising image integrity and security.
Innovation Solution
A computing system generates a steganographic image by encoding a password within a selected image using the least significant bits of color values, ensuring the image remains visually identical and securely stores the password in computer memory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If steganography is used to conceal passwords within images, then security is improved, but image integrity is compromised
Solution Approach 1:
The patent applies local quality by modifying only the least significant bits of specific pixel color values while leaving the most significant bits unchanged. This selective modification ensures that the human eye cannot perceive the changes (maintaining image integrity) while the embedded password data is securely stored in the modified bits.
Solution Approach 2:
The patent changes the parameter of pixel color values by altering only the least significant bits (LSBs) of the color components. This parameter-level modification allows password embedding without visually affecting the image, as the LSB changes are below human visual perception thresholds.
2Reliability
If steganography methods are used to store passwords, then security is enhanced, but the mechanism to conceal and retrieve credentials becomes complex
Solution Approach 1:
The patent implements self-service by using the image's own pixel data structure to store the password. The least significant bits of the image pixels serve as the storage medium, eliminating the need for separate concealment mechanisms or external storage systems. The image itself becomes both the carrier and the storage device.
3Reliability
If passwords are embedded in images using steganography, then unauthorized access is prevented, but retrieval of credentials becomes difficult
Solution Approach 1:
The patent employs feedback mechanisms where the system verifies the integrity of the embedded password during retrieval by checking consistency markers or validation data stored within the image structure. This feedback loop ensures that only authorized users who follow the correct retrieval process can successfully extract the password, maintaining security while enabling reliable access.
Data Source
AI summary
A computer system, method, and computer readable product are provided for managing passwords using steganography. In various embodiments, a computing system provides a password manager that a user provides a password to. The user then selects a service for which credentials will be generated or stored, and an image on the user's device that will be used to steganographically store the credentials. The computing system then generates a steganographic image that includes the credentials and stores that image with the other images on the user's device.