The Realization And The Application Of The Digital Signature In The Troops Supplies Purchase System

With the popularization of the Internet and multimedia technology,all the digital information(such as data, digital image,video etc.) in the Internet are facing the security problem. How to protect the copyright of the digital products becomes one of the most attractive research issues. Digital signature technique is one of the valid methods that resolves this problem. Digital signature operates the born and a series of sign and codes to constitute the electronics password to carry on the signature through a certain password, replace to the writing signature or an official seals,to confirm the body, the data source and integrities of signs, keeping data from burglarize to take, distort and break, thus to attain the purpose of protecting the data. The mentally dense sequence have a series of the characteristic inscrutability that is the good and false random, orbital inscrutability and the sensitivity of the early value .etc. so it is very keeping with in Digital Signature application.This paper choses the CA attestation conduct and actions according to the frame of PKI as the signature carring body, then, chooses to be reflect by the mentally dense password and Logistic to shoot the output mentally dense sequence to be the Digital Signature. This paper supplies to carry on the research in the application and realizations of the Digital Signature in the troops supplies purchase system. Textual main research contents and the creative result obtain is as follows:①Carry out concreting method of the Digital Signatue in the troops supplies purchase system according to the CA attestation of PKI.②The mentally dense password and Logistics reflect to shoot the output mentally dense sequence in the troops supplies purchase system the application of the Digital Signature.③The method of APPET by convenient JAVA2 that is realizated with the Digital Signature in the troops supplies purchase system.④The method of the realization and the application that is by the other Digital Signatures in the troops supplies purchase system.This paper choses the CA attestation conduct and actions of the frame of PKI the signature as the carring body, choosing to be reflect by the mentally dense password and Logistic to shoot the output mentally dense sequence to be the Digital signature, to the troops supplies purchase system which supplies in the research enunciation that the...