Wireless sensor network broadcast identity authentication method based on chaos

Abstract

The invention discloses a wireless sensor network broadcast identity authentication method based on chaos, which is characterized by comprising the following steps: 1) system initialization, 2) secretkey generation, 3) message broadcasting, 4) identity authentication, 5) sender revocation. According to the method, the security of identity authentication of the wireless sensor network can be ensured; furthermore, the resource consumption of the wireless sensor network can be reduced, and various attacks can be resisted.

Description

technical field [0001] The invention is a wireless sensor network broadcast identity authentication scheme, in particular a chaos-based wireless sensor network broadcast identity authentication method. Background technique [0002] Identity authentication is the process by which one party in the network determines the identity of the other party according to a certain network protocol and algorithm, and it is also a security access mechanism for the network. Due to the small storage capacity, poor computing power and limited network bandwidth of sensor nodes in wireless sensor networks, the current traditional Internet authentication technology is not suitable for wireless sensor networks. In recent years, through continuous research by domestic and foreign scholars, the broadcast authentication technology of wireless sensor network is mainly divided into symmetric key encryption (SKC) and public key encryption (PKC). [0003] The first is symmetric key encryption, and a we...

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Problems solved by technology

After that, many further improvements of the μTESLA-based schemes were proposed by many researchers, but due to the propagation delay of the public key and the delayed authentication of broadcast messages, these schemes suffered from several active attacks

The broadcast authentication scheme based on symmetric key secrecy has indeed obtained the advantages of low communication overhead and energy consumption, but there are still some defects in these schemes, such as: the maintenance of time synchronization in wireless sensor networks is a very complicated task, the initial parameter Distribution also brings serious overhead, and certification delays are unavoidable;

[0004] The second is public key encryption, which can be used to achieve identity authentication in traditional computer networks, but due to the limited hardware resources of wireless sensor networks, it has received many restrictions when it is applied to wireless sensor networks. , researchers proposed to authenticate the broadcast messages of wireless sensor networks by adopting the public key based on elliptic curve cryptography (ECC), which significantly reduces the overhead of wireless sensor networks. However, due to the intensive use of elliptic curve digital signature algorithm This makes this public key-based broadcast authentication scheme not widely used

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