Secure Gamma Generation For Stream Cipher based on Fuzzy Logic
Khaled Alnajjar, Igor Vyacheslavovich Anikin · 2020
In this paper, we proposed a new approach for secure bit stream gamma generation based on the concept of fuzzy logic and linear feedback shift registers (LFSRs). We used early-suggested pseudorandom number generator based on fuzzy logic (FPRNG) and suggested the updated version of FPRNG. We improved gamma security by aggregation the seeds with some valuable secure information about FPRNG parameters. We discussed the relationship between the size of the buffer and the degree of the primitive characteristic polynomial of the attached LFSR. We also made an advanced study of the FPRNG membership functions tuning process. We can increase the gamma security as well as stream cipher security by keeping these configurations in secret additionally to seeds.