Microcomputer-based encryption of vein images with a non-linear novel system

Abstract

In this study, it is aimed to store and use hand vein images which were microcomputer based encrypted with a novel chaotic system in a secure database. In the scope of the study, the images of the dorsal hand vein taken from the subjects by an infrared camera were improved by pre-processing methods. The pre-processed vein images were then encrypted in the microcomputer environment. For the encryption process, the newly designed and analyzed random numbers produced by the chaotic system were used. The random numbers generated before the encryption process were subjected to the most widely accepted NIST-800-22 and ENT tests in the international arena and successful results were obtained from all tests. The performance of chaos-based encryption system was tested with the security analyzes as frequently used in literature such as histogram, correlation, entropy, NPCR and UACI. It has been shown that hand vein images can be used in mobile identification systems with the help of this proposed encryption modality.