Title: A Novel Algorithm of Image Cryptography via Knapsack and Discrete Logarithm Technique
Authors: Dr. Adil AL-Rammahi / Kufa University
Volume: 9
Issue: 1
Pages: 36-45
Publication Date: 2025/01/28
Abstract:
__Exploration and expanding of internet usages obliges us to think deeply in secure data via communication. In present time, mutual images via internet spread very fast. It is needed in all electronic dealing, say visa finger print, forensic, military movement, and others. The purpose of this paper is to introduce the method of image cryptography using knapsack KP and discrete logarithm technique DL. In this paper discrete logarithm DL is calculated over cyclic group which deduced from finite Galio field GF(pn) of order pn for prime number p. Two steps are achieved in encryption part. The transformation of integer number grey levels of image matrix to binary bit vectors is computed. Then these vectors were enciphered using knapsack crypto method. Finally discrete logarithm is applied for more complicated encryption image. The key of our proposed method was represented as the super increasing bases of knapsack problem and the generator of discrete logarithm field. The statistical measurements of tested images via proposed method are promised well. Many comparisons with related update works were achieved. The compared calculations proved the goodness of proposed algorithm.