A method for security authentication of Internet of things node group identity

Abstract

The invention discloses a security authentication method for an Internet of Things node group identity, comprising: a server generates various parameters required for authentication and its own key according to a selected security level; group members register with the server to obtain the key And the relevant information of the group they belong to; all members of the group use the Schnorr aggregation signature to sign the current timestamp, and the group leader aggregates and sends the request to the server; after the server verifies the validity of the group authentication request, according to the Chinese remainder theorem Encrypted distribution is used to generate random numbers for subsequent session keys and sign them; after group members authenticate the server signature, they use their private keys to decrypt the encrypted random numbers and generate session keys. The invention can reduce the data traffic when a large-scale group applies for identity authentication, and the size of group aggregation authentication application and server reply information is constant and does not change with the number of group members.

Description

Technical field [0001] The present invention relates to the field of safety certification techniques, and in particular, an identity safety authentication method of an Internet of-connected node group is mainly used to solve the problem of low efficiency and occupancy of large-scale bandwidth resources. Background technique [0002] With the rapid development of the Internet of Things technology, the Internet of Things equipment has been widely used in various fields in various fields, and the number of Internet of Things is also explosive growth. At the same time, the security issues of the Internet of Things equipment are also highlighted, especially those used to collect and transmit user-sensitive data. Internet of Things equipment usually calculates limited capacity, and cannot use highly complexity safety technology, which is easy to attack. Once these devices have been attacked, the user-sensitive data will be leaked, which will cause irreparable losses. Therefore, in the ...

AI Technical Summary

Problems solved by technology

Therefore, the aforementioned invention can only alleviate the problem of signaling overhead to a certain extent, but in fact, when there are too many devices involved, the amount of calculation for group aggregation authentication application and server reply information is still very large, and the amount of data communication is still huge. The operating efficiency of the system puts forward higher requirements

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