Researches On Cryptology And HTTP Communication Agent

With the development of modern technology and the society, information security has been emphasized by people. Now computer has been introduced to all kinds of areas. The computer has brought great economical benefits to society, and at the same time, has also provided chances to those who use computer to commit crimes. The security of network communication, e-commerce are urgent. All countries are trying their best to do researches on information security, especially the cryptology.This dissertation mainly analysizes the encryption, decryption technology. Based on these technologies, the dissertation has encrypted and decrypted data and documents successfully. The article also successfully applied AES into HTTP agent. The main work are outlined as the following:1) The information security knowledge both in China and foreign countries and the situation of this project are been introduced firstly. And the contents, technology of the article are also been introduced.2) The dissertation analyzes the general situation of the cryptology, the classification and the way to encrypt of cryptology. The article also compares two different kinds of encryption. Finally the dissertation introduces two modes to encrypt and the way to crack cryptology.3) The dissertation analyzes DES, AES and RSA, and applies these technologies into encrypting and decrypting information.4) The article introduces the security of the WEB and the way to deal with these problems, and by using AES, the dissertation has designed a simple HTTP communication agent. The communication agent can protect the information even the information is accepted by those illegal people.