Date of Award
2025
Document Type
Thesis
Degree Name
Master of Science in Engineering (MSE)
Department
Electrical and Computer Engineering
Committee Chair
Aubrey Beal
Committee Member
Laurie Joiner
Committee Member
David Pan
Research Advisor
Aubrey Beal
Subject(s)
Data encryption (Computer science), Computer security, Chaotic behavior in systems
Abstract
As the landscape of image data usage continues to change, cloud services need to store data securely, reliably, and at times maintain a reasonable level of human usability. Thumbnail-preserving encryption (TPE) is a niche area of image encryption research that provides a balance between security and privacy. A TPE scheme encrypts an image in such a way that the thumbnail of the encrypted image is the same as or similar to the thumbnail of the original image. This work presented a chaos-based TPE scheme and explored potential pitfalls encountered when using chaos for encryption. The TPE scheme used a chaos-based encryption key as a pseudorandom number generator for pixel sum preservation and shuffling. The efforts of this thesis aim to further the understanding and implementation of chaos-based TPE and make suggestions on future improvements and for applications in industry.
Recommended Citation
Mog, Sara, "Chaos-based thumbnail-preserving image encryption" (2025). Theses. 791.
https://louis.uah.edu/uah-theses/791