Cross-link pass exchange method based on permission and computer readable medium

Abstract

The invention provides a cross-link pass exchange method based on permission, which comprises the following steps: a first chain updates the state mark of a first pass; the first chain submits an exchange application to a second chain; the second chain actively locks the second pass; the first chain sends the information allowed to be exchanged by the first pass to the second chain in packets; thesecond chain verifies the packet information and generates the information of the first pass on the second chain to generate a third pass; when the third pass is generated and the state thereof is set to the cross-chain exchange state, the second chain packs the information of the second pass and sends the packed information to the first chain, and the first chain generates a fourth pass; the first chain and the second chain update the state of the fourth pass and the third pass, respectively, to normal. The cross-link pass exchange of the invention does not need to rely on a third party, a side chain or other means. Under the circumstance of guaranteeing the privacy of authorized data, the cross-link data pass transfer is completed perfectly.

Description

technical field [0001] The present invention relates to the field of information technology, and in particular, to a permission-based cross-chain token exchange method and a computer-readable medium. Background technique [0002] With the continuous development of blockchain technology, the current blockchain ecology has long separated from the single-chain information island model, forming an ecological environment with multiple economies and multiple chains. There are constantly new chains being born, and the exchange between chains has become the primary problem to be solved urgently. [0003] At present, the practice of cross-chain exchange can be roughly divided into three categories, but there are various defects, which are briefly described as follows: [0004] 1. Notary Schemes: In Notary Schemes, a trusted party or group is used to declare to Chain X that an event has occurred on Chain Y, or to determine that the statement is correct. These groups can either liste...

AI Technical Summary

Problems solved by technology

Although hash locking realizes the exchange of cross-chain assets, it does not realize the transfer of cross-chain assets, let alone realize such cross-chain contracts, so its application scenarios are relatively limited

[0007] To sum up, there is no clear and unified exchange standard for cross-chain exchange

Moreover, it can be seen that the above cross-chain methods are all for tokens without collection attributes, and there is no cross-chain exchange method for collection attribute tokens

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