Abstract
The crux of safety communication of computer network lies in the accuracy of data transmission and the security of confidential data. Information security is the premise and foundation of all communication based on computer network. Business online becomes much more risky. Security technologies, such as authentication, encryption, must be implemented to ensure the security of the transactions. Digital signature technology plays an irreplaceable role in the fields of identification and authentication, data integrity, anti-repudiation and so on, which has a very wide range of application in e-commerce and e-government. The radical methods and traits of digital signature are introduced. The approach of digital signature based on Java is presented, and its rationality, effectively and feasibility are reasoned, the test results achieved the expected goals and ensured the confidentiality, integrity, and non-repudiation of the information. This solution can be widely used in digital campus, enterprise nets, etc, and has a good application prospect.
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