Application And Implementation Of The Digital Signature Technology In The Bidding System

At present, with the rapid development of information technology,computer networks bring enormous benefits to mankind, all the time,it also bring a lot of trouble,That is,due to the storage, transmission and processing of information is happened in an open communication network and be easily stolen and tampered with, hence the network security issues appear. One hand, network security threat to personal privacy,the other hand, it would be a threat to the national security of the entire network, so that the country suffered incalculable losses.With the outstanding of the network security issues, many network security technologies have emerged, the digital signature technology is an important safety technology.In recent years, biding business has not only carried in a fixed location, but online bidding, this new form bring to customers and vendors tremendous convenience not only saves money, but also saves time, so this form is gradually replace traditional forms of bidding,But as to online bidding, we must ensure security, particularly encryption and user authentication system, these two content files raise a higher security requirements to the systemThrough the research and analysis of the theoretical knowledge about digital signatures, combined with the design and development of the bidding system, this text elaborated the applications of digital signature technology, the design process in the bidding system and in realization of digital signatures,the role of some important things, such as a symmetric secret key, the digital envelope, the digest algorithm, digital certificates, public keys, private keys, and the CA.By addressing these contents, the paper realized the combination of the bidding system and digital signature technology.