Research On Data Encryption Technology In The Application Of Military Meteorological Net

Development advancing by leaps and bounds with the information technology and wide application of computer technology, the computer network has got swift and violent development. And the development of the military meteorological net makes the weather information of our troops must use prompt transmission among every unit, a large number of effective meteorological materials to valid weather forecast, improve military meteorological supportability offer enormous technical support in time.This article key point is based on the military meteorology information security question, in has analyzed the meteorological information characteristic, the security technology after the meteorological data transmission application system application situation as well as the existence security problem, with emphasis discussed in the network transmission the commonly used two kind of information security technology data encryption technology, the digital signature technology.In terms of the difference between encryption key and decryption key, it can divide intosymmetry cryptogram and public key cryptogram. This article studied and has realized in the symmetrical password system DES algorithm, the male key password system RSA algorithm with emphasis and uses in the digital signature MD5. algorithm, has made the secure analysis. Because of the unsuitable of using onlysymmetry cryptogram or public key cryptogram, it could hardly fulfill the informationsecurity requirement.Therefore, after this article fully was discussing the symmetrical key and the male key password thought, the method and the characteristic, proposed the mix password thought, including mathematical model, algorithm design and realization. In order to realize in the true significance digital signature, has produced the signature abstract realization way. Based on mix password this new method, constructs suits the comprehensive password management system management system which in aspect and so on data encryption, key transmission, key management, digital signature, status authentication applies.Finally, the union military network system pattern characteristic, the operation way, the system system structure, through the analysis comparison, proposed above the meteorological data transmission application system information encryption technology implementation plan, by achieves the protection meteorology information security transmission the goal.