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Anti-quantum calculation blockchain transaction method and system based on secret sharing and routing devices

A technology of secret sharing and quantum computing, applied in the field of anti-quantum computing blockchain transactions, it can solve the problems of user account rights damage, rights theft, key card loss, etc., to achieve the effect of protecting all rights and interests

Active Publication Date: 2020-06-26
南京如般量子科技有限公司 +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0009] 3. After the key card is lost or stolen, it may be used directly and cause damage to the rights and interests corresponding to the user account
For example, transfer all the rights and interests of the user account, resulting in the theft of rights and interests

Method used

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  • Anti-quantum calculation blockchain transaction method and system based on secret sharing and routing devices
  • Anti-quantum calculation blockchain transaction method and system based on secret sharing and routing devices
  • Anti-quantum calculation blockchain transaction method and system based on secret sharing and routing devices

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Embodiment Construction

[0068] instructions

[0069] The system structure diagram of the embodiment of the present invention is as figure 1 As shown, the encryption system for communication between the client and the routing device uses the ECC system.

[0070] When the routing device issues the key card for the user, first select the domain parameters of the elliptic curve to include q, a, b, P and n. q represents the size of the finite field Fq; the variables a and b are the elliptic curve y 2 =x 3 Coefficient of +ax+b, satisfying 4a 3 +27b 2 ≠0; P is the base point generator. After generating the elliptic curve, select the base point generator P, satisfying that its order is an integer n. The generated private key sk and public key pk satisfy pk=sk*P. The relevant parameters {q, a, b, P, n} of the algorithm are written into the designated area of ​​the key card.

[0071] Perform (2,2) secret sharing on the private key SK of each client. When performing (t, n) secret sharing on information...

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Abstract

The invention provides an anti-quantum calculation block chain transaction method and system based on a secret sharing and routing device. The system comprises a blockchain network formed by communication connection of more than one intranet, each intranet is provided with a plurality of users and routing devices, the users are in communication connection with the routing devices in the intranet,and each routing device is provided with a blockchain client for providing registration and authentication services; wherein each user and the routing device are respectively provided with a secret key card, the routing device issues the secret key cards and the secret keys to the users in the intranet, and the private keys of the users are grouped in a secret sharing mode and are respectively stored in the secret key cards of the routing device and the corresponding user secret key cards. According to the invention, complete transaction signature can be completed only when the user and the routing device sign respectively during user transaction, the transaction information is recorded by the routing device of the intranet where the user is located and does not appear in the blockchain record, and the rights and interests of the blockchain account corresponding to the key fob are greatly protected.

Description

technical field [0001] The present invention relates to the technical field of block chain information security, in particular to a method and system for anti-quantum computing block chain transactions based on secret sharing and routing devices. Background technique [0002] Blockchain is a brand-new distributed infrastructure and computing paradigm. It uses an ordered chained data structure to store data, uses consensus algorithms to update data, and uses cryptography to ensure data security. In blockchain-based transactions, ensuring the data security of transactions and the privacy of customers is a necessary condition for the further development of blockchain. For this reason, cryptography technology, especially public key cryptography, has been widely used in blockchain. [0003] As most people understand, quantum computers have great potential for code-breaking. Today's mainstream asymmetric (public key) encryption algorithms, such as the RSA encryption algorithm, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08H04L9/32H04L9/08G06Q40/04G06N10/00G06Q20/38
CPCH04L63/083H04L9/085H04L9/0869H04L9/3247H04L9/3268H04L67/1097G06Q40/04G06Q20/3825G06Q20/3829G06N10/00H04L9/50
Inventor 富尧钟一民杨羽成
Owner 南京如般量子科技有限公司
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