Researches on DNA Model Based Algorithm of Establishment of Pairwise Key for Sensor Networks

TLDR: A novel DNA model based pairwise key establishment algorithm is presented for distributed sensor networks, which uses characteristics of the code of oligonucleotides in DNA strands for key predistribution and which has better security, lower communication costs and higher probability of direct pairwiseKey establishment.

Abstract: On the basis of KDC(key distribution center)and diversity of DNA molecules,an innovative DNA model for key predistribution and key predistribution scheme based on the new DNA model are proposed.And in addition,by combing with the good characteristics of key pool,a novel DNA model based pairwise key establishment algorithm is presented for distributed sensor networks,which uses characteristics of the code of oligonucleotides in DNA strands for key predistribution,and in which,any pair of nodes exchange DNA strands information and use the code of some oligonucleotide in the DNA strand as their actual pairwise key.Theoretical and experimental analyses show that,compared with those previous well-known polynomial-based and polynomial pool-based key predistribution models and pairwise key establishment algorithms,the newly proposed algorithm has better security,lower communication costs and higher probability of direct pairwise key establishment.So,it is a better and more efficient new pairwise key establishment algorithm suitable for distributed sensor networks.