Research on the Application of DNA Cryptography in Electronic Bidding System

With the rapid development of bidding market, a new type of bidding method-electronic bidding method has been widely used in the bidding market. This new-type of method is a program that the bidding is completed by graphics and textures. Generally, the electronic bidding provides doubles bidders with the data information of the transaction through the Internet. In this study we propose an information encryption and digital signature method based on DNA cryptography which is combined with HASH function, symmetric encryption and asymmetric encryption comprehensively for the purpose of the information resources’ integrality, usability, security and reliability in the electronic bidding system. The results of the study show that our new method provides double guarantee for the bidding system under the role of symmetric encryption and asymmetric encryption used DNA cryptography, and DNA molecular encryption has the characteristics of electronic immunity, concealment, independent of mathematical problems, massive parallelism, etc. It provides a double guarantee for the bidding system. The security analysis results show that the algorithm can effectively protect the security and integrity of the bidder and bidder’s data information.