Peer to peer (P2P) network secure communication method based on random handshake

Abstract

The invention discloses a peer to peer (P2P) network secure communication method based on random handshake, which relates to the technical field of network communication. The method comprises the following steps: when a communication node gets connection and every time the communication node communicates, the communication initiating node randomly selects an encryption algorithm to randomly generate a key for the encryption and a random test text, encrypts the random test text by using the key to obtain a test ciphertext P1, and sends a test message, which comprises the keys and the random test text, to a communication response node; the communication response node encrypts the random test text according to the received key, generates a new test ciphertext P2 and returns the test ciphertext P2 to the communication initiating node; and the communication initiating node matches the test ciphertexts P1 and P2, detects the network security according to the matching result and takes the corresponding measures. Compared with the prior art, the method can effectively prevent a third party from destroying and tampering data in the communication process, and does not need to increase the expenses on server resources.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a random handshake-based P2P network security communication method. Background technique [0002] P2P network (Peer to Peer, peer-to-peer Internet network) is a distributed network, network participants share a part of their hardware resources, these shared resources need to be provided by the network services and content, can be used by other peer nodes ( Peer) direct access without going through an intermediate entity. While the distributed structure adopted by the P2P communication network provides scalability and flexibility, it also faces huge security challenges. It needs to provide authentication, authorization, secure transmission of data information, Mechanisms such as digital signature and encryption. At present, the research on P2P communication security issues mainly focuses on the trust degree of nodes and the trust degree of shared files. The trust ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the risk that the existing technology cannot effectively prevent the third party from maliciously destroying or tampering with the communication data during the communication process, and to provide a P2P network security communication method, which can improve the communication data security (especially Whether the data has been tampered with by a third party) is detected, and measures are taken automatically after discovering danger (that is, malicious damage by a third party in the communication process), and at the same time, it is more difficult for a third party to eavesdrop on the data, so as to improve the existing P2P communication security mechanism Replenish

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