A selective leak-based intelligent terminal access authentication method

Abstract

The invention discloses an intelligent terminal access authentication method based on selective leakage. The invention uses lightweight operators such as single-item HMAC function and XOR operation, combined with a Huffman tree, to realize the intelligent terminal V and the access unit R mutual authentication. Before formal authentication, the smart terminal V pre-shares the certificate containing the hash value root to the access unit R through a trusted third party. The authentication process is divided into two stages: in the first stage, the intelligent terminal V uses random number and secret value mapping to complete the authentication of the identity legitimacy of the access unit R; The information of the terminal V realizes the authentication of the legality of the identity of the intelligent terminal V by the access unit R. The invention significantly improves the security and flexibility of the authentication process. In addition to defending against attacks such as message replay, it can also effectively avoid the direct exposure of sensitive data of intelligent networked vehicles to roadbed units, and is suitable for secure interactions with data sharing requirements. Application scenarios.

Description

technical field [0001] The invention relates to the field of intelligent terminal security, in particular to an intelligent terminal access authentication method based on selective leakage. Background technique [0002] With the rise of the Internet of Things, the application prospects of smart terminals have become broader. Today, smart terminals have been widely deployed in various systems and used in safety-critical industries such as Internet of Vehicles and industrial control, which makes the role of smart terminals more important and the network environment they are in is more complex. How to securely and efficiently connect smart terminals to increasingly complex networks needs to be solved urgently. Traditional communication protocols based on end-to-end encryption face various threats, and replay attacks can be easily implemented by intercepting data packets transmitted on the channel, resulting in unpredictable results. Therefore, a secure authentication protocol...

AI Technical Summary

Problems solved by technology

Taking the Internet of Vehicles as an example, on the one hand, the performance and storage space of the network access unit itself is limited, and it may have to process a large number of access requests from smart terminals at the same time; The accepted service may not need to authenticate all attribute information stored on the smart terminal

Many traditional authentication methods based on encryption algorithms are no longer suitable for this scenario

Images