Entity identification method and system of energy-constrained network

Abstract

The invention relates to an entity identification method and system of an energy-constrained network. The method comprises the following steps: 1) an entity A sends an identification request message to an entity B; 2) after receiving the identification request message from the entity A, the entity B sends an identification response message to the entity A; and 3) the entity A judges the legality of the entity B according to the identification response message received in the step 2), thus the entity A completes the identification of the entity B; if the entity B is judged to be legal, an identification request confirming message is sent to the entity B, the session key of the entity B is calculated; and if the entity B is judged to be illegal, the identification response message is discarded. The system of the invention is suitable for the energy-constrained network and has the advantages of low cost, high computational efficiency, safe and reliable operation and the like.

Description

technical field [0001] The invention belongs to the application field of network security in information security technology, and in particular relates to an entity authentication method and system of a resource-limited network. Background technique [0002] Resource-constrained wireless networks, including sensor networks, magnetic domain networks, and RFID networks, have broad application prospects in military, environmental monitoring, forest fire prevention, health care, logistics, and other fields, and are playing an increasingly important role in these fields. effect. Due to the wireless and broadcast characteristics of this type of network during communication, it is vulnerable to attacks such as eavesdropping, tampering, forgery, and entity capture and duplication. It is necessary to introduce low-overhead authentication and message confidentiality mechanisms to ensure Entity legality and confidentiality and integrity of communication messages. The current authenti...

AI Technical Summary

Problems solved by technology

The current authentication methods are generally based on cryptographic calculations, requiring entities in the network to preset corresponding cryptographic algorithms, otherwise the authentication protocol cannot be executed; moreover, even if the entities preset cryptographic algorithms, such authentication protocols will also give Entities in the network cause computational overhead, such as authentication methods based on symmetric and asymmetric cryptographic algorithms, which require entities to perform encryption and decryption operations, thus increasing the resource burden on network entities

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