Security protocol is a message exchange protocol based on cryptography, and its purpose is to provide various security services in the network environment. Cryptography is the foundation of network security, but network security can not only rely on secure cryptographic algorithms. Security protocol is an important part of network security. We need to authenticate entities, securely distribute keys or other secrets between entities, and confirm the non-repudiation of messages sent and received. Security protocol is an interactive communication protocol based on cryptographic system, which uses cryptographic algorithm and protocol logic to realize authentication and key distribution.
Network security protocol is the foundation of creating a network security environment and the key technology of building a secure network. Designing and ensuring the security and correctness of network security protocols can ensure network security on this basis and avoid information leakage problems such as network data loss or file damage caused by insufficient network security level. In the application of computer network, people have done a lot of research on the security protocol of computer communication to improve the security of network information transmission.
The contents of network security include: computer network equipment security, computer network system security, database security and so on. Characterized in that, aiming at the possible security problems of the computer network itself, a network security enhancement scheme is implemented to ensure the security of the computer network itself.