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Identity authentication method for heterogeneous blockchain in cross-chain scene

A technology of identity authentication and blockchain, which is applied to the usage of multiple keys/algorithms, public keys for secure communication, and key distribution to achieve the effect of improving efficiency

Active Publication Date: 2019-11-26
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to address the shortcomings of the above-mentioned prior art, and propose an identity authentication method for heterogeneous blockchains in cross-chain scenarios, which solves the problem of public key infrastructure PKI and certificateless public key cryptosystems in cross-chain scenarios Identity authentication issues between users of CLC's blockchain system

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  • Identity authentication method for heterogeneous blockchain in cross-chain scene
  • Identity authentication method for heterogeneous blockchain in cross-chain scene
  • Identity authentication method for heterogeneous blockchain in cross-chain scene

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Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings.

[0044] Refer to attached figure 1 , to further describe the specific steps of the present invention.

[0045] Step 1. User node A in the PKI blockchain system registers with the cross-chain platform.

[0046] Refer to attached figure 2 , to further describe step 1 of the present invention.

[0047] Cross-chain platform from Randomly select the master key s, and calculate the cross-chain platform public key P p =sP, where P represents the additive cyclic group G 1 A generator in , Denotes a finite field Z q = {0,1,...,q-1} The set after removing element zero.

[0048] The PKI blockchain system selects user node A, and uses the public key cryptography infrastructure key generation algorithm to obtain the private key x of user node A p and public key PK p ;

[0049] The steps of the public key cryptography infrastructure key generation algorithm are as follo...

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Abstract

The invention discloses an identity authentication method for a heterogeneous blockchain in a cross-chain scene. The method comprises the following steps: 1) registering a user node A of a PKI blockchain system with a cross-chain platform; 2) registering a user node B of the CLC block chain system with a cross-chain platform; 3) enabling the user node A of the PKI block chain system to perform system authentication and key negotiation; 4) enabling the CLC block chain system user node B to perform system authentication and key agreement; and 5) enabling the user node A of the PKI block chain system to verify the key. Identity authentication between the block chain systems adopting different public key cryptography systems in the architecture in a cross-chain scene is realized, then the twoheterogeneous block chain systems can communicate safely, and the method has the advantages of high process efficiency, low computation complexity and low communication overhead.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to an identity authentication method of heterogeneous blockchains in a cross-chain scenario in the technical field of network communication and network security. The present invention can be used for both users of the public key cryptography infrastructure PKI (Public Key Infrastructure) block chain system and the certificateless public key cryptography system CLC (Certificateless Public Key Cryptography) block chain system to identify each other during cross-chain communication certified. Background technique [0002] The architecture of the blockchain system can be divided into a data layer, a network layer, a consensus layer, an incentive layer, and an application layer. Related services of public key encryption system and signature technology can be provided by public key cryptographic infrastructure PKI or certificateless public key cryptographic system CLC, that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/14H04L9/30H04L29/06
CPCH04L9/0838H04L9/14H04L9/3073H04L63/06H04L63/083H04L63/0876
Inventor 刘景伟梁天宇任爱莲孙蓉葛建华
Owner XIDIAN UNIV
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