IOT identity authentication method based on non-interactive zero knowledge proof

Abstract

The invention belongs to the technical field of Internet of Things, and particularly relates to an identity authentication method based on non-interactive zero knowledge proof, which comprises the following steps: a prover provides a material capable of proving own identity to an authoritative third party to obtain an identity signature with an authoritative third party private key signature; the prover generates a zero-knowledge verification message by combining the identity signature with an algorithm of the protocol, and can prove the identity of the prover without interacting zero knowledge with any verifier, namely, the prover owns the identity signature from the authoritative third party and does not expose the content of the identity signature of the prover; and when the zero knowledge proves that the verification is successful, the IOT equipment connected with the verifier end can perform further action. The non-interactive zero-knowledge verification adopted by the scheme does not need to store the information of any prover in advance at the prover end, so that on one hand, the security of the prover information is ensured, and on the other hand, the characteristics of low power consumption and small size of the authentication hardware are realized, and the IOT equipment is satisfied.

Description

technical field [0001] The present invention relates to the field of the Internet of Things, in particular to a method for identity authentication based on non-interactive zero-knowledge proof. Background technique [0002] Zero-Knowledge Proof (Zero-Knowledge Proof) was proposed by S.Goldwasser, S.Micali and C.Rackoff in the early 1980s. It refers to the ability of the prover to convince the verifier that a certain assertion is correct without providing any useful information to the verifier. A zero-knowledge proof is essentially an agreement involving two or more parties, that is, a series of steps that two or more parties need to take to complete a task. The prover proves to the verifier and makes him believe that he knows or has a certain message, but the proof process cannot leak any information about the proven message to the verifier. [0003] Zero-knowledge proof systems are indispensable when it is necessary to prove whether a proposition is correct without prompt...

AI Technical Summary

Problems solved by technology

[0006] However, the traditional interactive zero-knowledge proof in the existing technology needs to respond to each challenge correctly before it can pass, and the verification result of one verifier cannot get the consensus of other verifiers, and other verifiers want to verify the proof The identity of the user needs to repeat the same process, which makes it difficult for existing IOT devices to complete secure identity authentication due to the large-scale and lightweight features, and the efficiency and stability need to be improved.

Images