CN-121998654-A - Satellite data right determination and data tracing method and related equipment

CN121998654ACN 121998654 ACN121998654 ACN 121998654ACN-121998654-A

Abstract

The invention discloses a satellite data right-determining and data tracing method and related equipment, and relates to the technical field of satellite remote sensing, wherein the method comprises the steps of generating a multi-dimensional right tag of satellite data, embedding the multi-dimensional right tag into the satellite data, generating a tracing record in the process of operating the satellite data embedded with the multi-dimensional right tag, storing light tracing information in the tracing record into a alliance chain, and storing detail tracing information in the tracing record into a private chain; the method and the system overcome the defects of inaccurate rights, tracing delay, high safety risk, poor cooperativity and the like in the prior art, and provide reliable support for the market circulation and safety management of satellite data by inquiring the lightweight tracing information stored in the alliance chain and the detail tracing information stored in the private chain in response to a tracing inquiry request.

Inventors

Fang Zengbo
GUO WEI
LIU KEJIA
SONG LIUJUN
WEI WENYI
HONG TAO
NIU MIN

Assignees

陕西丝路天图卫星科技有限公司

Dates

Publication Date: 20260508
Application Date: 20251208

Claims (10)

1. The satellite data right determining and data tracing method is characterized by comprising the following steps: Generating a multi-dimension ownership tag of satellite data, wherein the multi-dimension ownership tag at least comprises ownership layer information, and the multi-dimension ownership tag is embedded into the satellite data, and the ownership layer information comprises information of an ownership body; in the process of operating satellite data embedded with a multidimensional right tag, generating a tracing record, storing light tracing information in the tracing record into a alliance chain, and storing detail tracing information in the tracing record into a private chain, wherein key information corresponding to the detail tracing information is synchronized to the alliance chain through a cross-chain protocol; Updating the rights layer information in the multidimensional rights label based on the tracing record; And responding to the tracing inquiry request, and generating and outputting a full-flow tracing map of the satellite data by inquiring the lightweight tracing information stored in the alliance chain and the detail tracing information stored in the private chain.
2. The method for determining the right and tracing the data from the satellite according to claim 1, further comprising: Calculating a hash value of the multidimensional rights label, digitally signing the hash value by using a private key of an ownership subject, and uploading the hash value and the digital signature to a alliance chain; Before operating the satellite data embedded with the multi-dimension weight tag, extracting the multi-dimension weight tag from the satellite data embedded with the multi-dimension weight tag, calculating the hash value of the extracted multi-dimension weight tag, comparing the hash value with the hash value obtained from the alliance chain, and verifying the digital signature of the satellite data embedded with the multi-dimension weight tag by utilizing the public key corresponding to the private key of the ownership main body so as to verify the integrity and authenticity of the extracted multi-dimension weight tag.
3. The method for determining the right and tracing the data of the satellite data according to claim 2, wherein the coalition chain uses a dynamic PBFT consensus mechanism to perform consensus on the lightweight tracing information and the uplink operation of the key information synchronized by the private chain.
4. A satellite data authorization and data tracing method according to any one of claims 1 to 3 further comprising desensitizing and encrypting sensitive information in the multidimensional rights label.
5. The satellite data right-determining and data source-tracing system is characterized by comprising a label generation embedding module, a storage module, an updating module and a source-tracing module; The tag generation embedding module is used for generating a multi-dimension ownership tag of satellite data, wherein the multi-dimension ownership tag at least comprises ownership layer information, and embedding the multi-dimension ownership tag into the satellite data, and the ownership layer information comprises information of an ownership body; The storage module is used for generating a tracing record in the process of operating satellite data embedded with a multi-dimensional weight tag, storing light tracing information in the tracing record into a alliance chain, and storing detail tracing information in the tracing record into a private chain, wherein key information corresponding to the detail tracing information is synchronized to the alliance chain through a cross-chain protocol; the updating module is used for updating the rights layer information in the multidimensional rights label based on the tracing record; The tracing module is used for responding to a tracing inquiry request, and generating and outputting a full-flow tracing map of the satellite data by inquiring light tracing information stored in the alliance chain and detail tracing information stored in the private chain.
6. The satellite data authorization and data tracing system according to claim 5, further comprising a verification module, wherein the verification module is configured to: Calculating a hash value of the multidimensional rights label, digitally signing the hash value by using a private key of an ownership subject, and uploading the hash value and the digital signature to a alliance chain; Before operating the satellite data embedded with the multi-dimension weight tag, extracting the multi-dimension weight tag from the satellite data embedded with the multi-dimension weight tag, calculating the hash value of the extracted multi-dimension weight tag, comparing the hash value with the hash value obtained from the alliance chain, and verifying the digital signature of the satellite data embedded with the multi-dimension weight tag by utilizing the public key corresponding to the private key of the ownership main body so as to verify the integrity and authenticity of the extracted multi-dimension weight tag.
7. The system of claim 6, wherein the federated chain uses a dynamic PBFT consensus mechanism to consensus the uplink operations of the lightweight trace-source information and the critical information synchronized by the private chain.
8. The system for determining the right and tracing the data of satellite data according to any one of claims 5 to 7, further comprising a desensitizing encryption processing module, wherein the desensitizing encryption processing module is used for carrying out desensitizing and encryption processing on sensitive information in the multidimensional rights label.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing a satellite data entitlement and data tracing method according to any one of claims 1 to 4 when the computer program is executed by the processor.
10. A computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processor, the method for satellite data right determination and data tracing is implemented according to any one of claims 1 to 4.

Description

Satellite data right determination and data tracing method and related equipment Technical Field The invention relates to the technical field of satellite remote sensing, in particular to a satellite data right-determining and data source tracing method and related equipment. Background Satellite data is widely used. With the development of high-resolution satellite technology, the daily data volume of a single remote sensing satellite can reach 10TB, the data circulation frequency and range are continuously expanded, but the existing satellite data right-determining and source-tracing technology system is still immature, and the market circulation and safety management requirements are difficult to meet. Current satellite data validation is primarily dependent on a combination pattern of legal contracts and simple technical identification. Legal contract leading patterns define data rights by signing electronic or written agreements, but rely entirely on external legal regulations to technically prevent data from being copied or reselled without authorization. The data watermarking technology adopts discrete wavelet transformation or discrete cosine transformation to embed the rights identification, but has the problem of unbalanced robustness and concealment. Metadata labeling technology adds a property field in a metadata file attached to data, but metadata and a data body are mutually independent and are easy to tamper. In terms of data tracing, single point failure risk and data credibility problems exist. The blockchain tracing technology stores tracing information based on the Ethernet alliance chain, but has low processing efficiency and privacy disclosure risk. These prior art techniques have significant drawbacks, particularly, the legal contract model for rights maintenance requires high evidence costs, such as the failure of rights maintenance due to the loss of data flow trace in a mapping institute in 2023. The data watermarking technology can lead to image pixel deviation exceeding 0.5% when the embedding strength is too high, influence the precision sensitive application, and has a watermark extraction success rate lower than 70% when the data compression rate exceeds 20% or suffers noise interference after the strength is reduced. The metadata labeling technology has no effective verification mechanism, and a satellite data transaction platform in 2022 has a case that multiple metadata rights are tampered maliciously. When the data volume exceeds 100TB, the response time of the traceable query is prolonged from 0.5 seconds to 8 seconds, and 72 hours of traceable data are lost due to hardware faults of a certain ground station in 2021. When the block chain tracing technology adopts a traditional PBFT consensus mechanism, each tracing record takes 5-8 seconds to be uplinked, the high-frequency data operation of a single satellite exceeding 10 ten thousand times a day cannot be processed, and sensitive information can be leaked from the data stored in the chain. In summary, the prior art has systematic defects in the dimensions of right accuracy, traceability reliability, cooperativity, safety efficiency balance and the like, severely restricts the compliance and value release of satellite data, and a new technical scheme is needed to solve the problems. Disclosure of Invention The invention aims to solve the technical problems of the prior art, and particularly provides a satellite data right determining and data tracing method and related equipment, wherein the method comprises the following steps of: 1) In a first aspect, the present invention provides a satellite data right determining and data tracing method, which specifically adopts the technical scheme that: The method comprises the steps of generating a multi-dimension ownership tag of satellite data, wherein the multi-dimension ownership tag at least comprises ownership layer information, embedding the multi-dimension ownership tag into the satellite data, generating a tracing record in the process of operating the satellite data embedded with the multi-dimension ownership tag, storing lightweight tracing information in the tracing record into a alliance chain, and storing detail tracing information in the tracing record into a private chain, synchronizing key information corresponding to the detail tracing information into the alliance chain through a cross-chain protocol, updating the ownership layer information in the multi-dimension ownership tag based on the tracing record, and responding to a tracing inquiry request, and generating and outputting a full-flow tracing map of the satellite data by inquiring the lightweight tracing information stored in the alliance chain and the detail tracing information stored in the private chain. The satellite data right-confirming and data source-tracing method has the beneficial effects that the right-confirming accuracy and reliability are effectively improved by generating the multidimensi