Related Experiment Video
Updated: Jul 30, 2025

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
A Lossless-Recovery Secret Distribution Scheme Based on QR Codes
Jeng-Shyang Pan1,2, Tao Liu1, Bin Yan3
1College of Computer Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
Abstract:
The visual cryptography scheme (VCS) distributes a secret to several images that can enhance the secure transmission of that secret. Quick response (QR) codes are widespread. VCS can be used to improve their secure transmission. Some schemes recover QR codes with many errors. This paper uses a distribution mechanism to achieve the error-free recovery of QR codes. An error-correction codeword (ECC) is used to divide the QR code into different areas. Every area is a key, and they are distributed to n shares. The loss of any share will make the reconstructed QR code impossible to decode normally. Stacking all shares can recover the secret QR code losslessly. Based on some experiments, the proposed scheme is relatively safe. The proposed scheme can restore a secret QR code without errors, and it is effective and feasible.
More Related Videos
Related Concept Videos
Reducing Line Loss
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
Traveling Waves: Lossless Lines
Distribution Reliability and Automation
Secondary Distribution
In residential areas, 120/240 V single-phase, three-wire service is commonly used for lighting, outlets, and large appliances. Urban areas with high-density loads...
Boundary Conditions: Lossless Lines
At the receiving end, the boundary condition states that the voltage equals the product of the receiving-end impedance and current. This relationship is expressed as a function of the incident and...
Leaky Scanning

