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Chapter 2
DOI: 10.4018/978-1-7998-1290-6.ch002
ABSTRACT
This chapter presents the possibilities of applying cryptography and steganography in design advanced
methods of medical software. The proposed solution has two modules: medical data encryption and
medical data hiding. In the frst module for the encryption of patient data a Catalan crypto-key is used
combined with the LatticePath combinatorial problem. In the second module for hiding patient data,
the Catalan stego-key and medical image is used. The objective of the second part is to explain and
investigate the existing author’s method to steganography based on the Catalan numbers in the design
of medical software. The proposed solution is implemented in the Java programming language. In the
experimental part, cryptanalysis and steganalysis of the proposed solution were given. Cryptanalysis is
based on time and storage complexity, leaking information and machine learning-based identifcation
of the encryption method. Also, steganalysis is based on the amount of information per pixel in stego
image, approximate entropy and bit distribution in stego-images.
Implementation of
Encryption and Data Hiding
in E-Health Application
Muzafer H Saracevic
https://orcid.org/0000-0003-2577-7927
University of Novi Pazar, Serbia.
Aybeyan Selimi
International Vision University, North Macedonia
Selver Pepić
Higher Technical Machine School of Professional Studies in Trstenik, Serbia