TY - JOUR T1 - A Two-phase Scheme for Microarray Image Restoration AU - JO - Journal of Information and Computing Science VL - 4 SP - 288 EP - 298 PY - 2024 DA - 2024/01 SN - 2 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jics/22793.html KW - LFSR, Cryptography, Stream Cipher, Cryptanalysis AB - In this paper, the implementation of Berlekamp-Massey algorithm to find the linear complexity for any given sequences is introduced. A new two methods for attacking stream cipher are proposed. The first one is attacking with known combining part using hypothesis test to find the data significant level compromising the appropriate one, while the second method for attacking unknown combining part by finding the behavior (truth table) of the combining part through two algorithms. Once the truth table of the combining part is found, the initial values of the registers can be found in the driving part or drawing the combining part functions using Carnough map or Mcloski algorithm for reverse engineering and reconstruct the combining part.