Blockchain data processing method, apparatus, and device

Patent metadata

Field	Value
Publication number	US-11349658-B2
Application number	US-202117361982-A
Country	US
Kind code	B2
Filing date	Jun 29, 2021
Priority date	Jul 31, 2020
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

A blockchain data processing method includes: receiving a read request for target data stored in a blockchain; acquiring read permission index information of the target data from the blockchain, and acquiring a data read rule corresponding to the target data based on the read permission index information, the data read rule being configured to determine readable content in the target data; determining, in a predetermined trusted environment, the readable content in the target data based on the data read rule; and providing the readable content in the target data for a sender of the read request.

First claim

The invention claimed is:

1. A blockchain data processing method, comprising:
receiving an upload request of target data;
generating, in a predetermined trusted environment, a data read rule corresponding to the target data and read permission index information of the target data according to a preset compliance rule for data reading and the target data;
uploading the target data and the read permission index information of the target data to a blockchain;
receiving a read request for the target data stored in the blockchain;
acquiring the read permission index information of the target data from the blockchain, and acquiring the data read rule corresponding to the target data based on the read permission index information, the data read rule being configured to determine readable content in the target data;
determining, in the predetermined trusted environment, the readable content in the target data based on the data read rule; and
providing the readable content in the target data for a sender of the read request.

2. The method according to claim 1 , wherein the providing the readable content in the target data for the sender of the read request comprises:
keeping the readable content in the target data unchanged, and processing remaining content in the target data to obtain processed target data; and
displaying the processed target data to the sender of the read request.

3. The method according to claim 1 , further comprising:
acquiring a changed compliance rule when it is detected that the compliance rule for data reading is changed;
modifying the data read rule based on the changed compliance rule to obtain a modified data read rule; and
the determining, in the predetermined trusted environment, the readable content in the target data based on the data read rule comprising:
determining, in the predetermined trusted environment, the readable content in the target data based on the modified data read rule.

4. The method according to claim 1 , wherein the generating, in the predetermined trusted environment, the data read rule corresponding to the target data and the read permission index information of the target data according to the preset compliance rule for data reading and the target data comprises:
verifying, in the predetermined trusted environment, content of the target data according to a preset data verification rule to obtain a verification result; and
generating, in the predetermined trusted environment, the data read rule corresponding to the target data and the read permission index information of the target data according to the preset compliance rule for data reading and the target data if the verification result is the verification being passed.

5. The method according to claim 1 , further comprising:
receiving a modify request for the data read rule corresponding to the target data;
modifying, based on the modify request, the data read rule corresponding to the target data to obtain a modified data read rule; and
the determining, in the predetermined trusted environment, the readable content in the target data based on the data read rule comprising:
determining, in the predetermined trusted environment, the readable content in the target data based on the modified data read rule.

6. The method according to claim 1 , wherein the target data is encrypted data, and before the determining, in the predetermined trusted environment, the readable content in the target data based on the data read rule, the method further comprises:
decrypting, in a predetermined trusted execution environment, the encrypted target data to obtain the target data.

7. A blockchain data processing device, comprising:
a processor; and
a memory storing instructions executable by the processor,
wherein the processor is configured to:
receive an upload request of target data;
generate, in a predetermined trusted environment, a data read rule corresponding to the target data and read permission index information of the target data according to a preset compliance rule for data reading and the target data;
upload the target data and the read permission index information of the target data to a blockchain;
receive a read request for the target data stored in the blockchain;
acquire the read permission index information of the target data from the blockchain, and acquire the data read rule corresponding to the target data based on the read permission index information, the data read rule being configured to determine readable content in the target data;
determine, in the predetermined trusted environment, the readable content in the target data based on the data read rule; and
provide the readable content in the target data for a sender of the read request.

8. The device according to claim 7 , wherein the processor is further configured to:
keep the readable content in the target data unchanged, and process remaining content in the target data to obtain processed target data; and
display the processed target data to the sender of the read request.

9. The device according to claim 7 , wherein the processor is further configured to:
acquire a changed compliance rule when it is detected that the compliance rule for data reading is changed;
modify the data read rule based on the changed compliance rule to obtain a modified data read rule; and
determine, in the predetermined trusted environment, the readable content in the target data based on the modified data read rule.

10. The device according to claim 7 , wherein the processor is further configured to:
verify, in the predetermined trusted environment, content of the target data according to a preset data verification rule to obtain a verification result; and
generate, in the predetermined trusted environment, the data read rule corresponding to the target data and the read permission index information of the target data according to the preset compliance rule for data reading and the target data if the verification result is the verification being passed.

11. The device according to claim 7 , wherein the processor is further configured to:
receive a modify request for the data read rule corresponding to the target data;
modify, based on the modify request, the data read rule corresponding to the target data to obtain a modified data read rule; and
determine, in the predetermined trusted environment, the readable content in the target data based on the modified data read rule.

12. The device according to claim 7 , wherein the target data is encrypted data, and before determining, in the predetermined trusted environment, the readable content in the target data based on the data read rule, the processor is further configured to:
decrypt, in a predetermined trusted execution environment, the encrypted target data to obtain the target data.

13. A non-transitory computer-readable storage medium having stored therein instructions that, when executed by a processor of a device, cause the device to perform a blockchain data processing method, the method comprising:
receiving an upload request of target data;
generating, in a predetermined trusted environment, a data read rule corresponding to the target data and read permission index information of the target data according to a preset compliance rule for data reading and the target data;
uploading the target data and the read permission index information of the target data to a blockchain;
receiving a read request for the target data stored in the blockchain;
acquiring the read permission index information of the target data from the blockchain, and acquiring the data read rule corresponding to the target data ba

Assignees

• Alipay Hangzhou Inf Tech Co Ltd

Inventors

• Yang Wenyu
• Qiu Honglin
• Yan Ying
• Li Shubo
• Chen Yuan
• Wu Hanghang
• Yang Renhui
• Liu Qin

Classifications

• H04L9/3239 Primary

  involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD · CPC title

• G06F16/24564 Primary

  Applying rules; Deductive queries · CPC title

• G06F16/2228

  Indexing structures · CPC title

• G06F21/64

  Protecting data integrity, e.g. using checksums, certificates or signatures · CPC title

• H04L9/50

  using hash chains, e.g. blockchains or hash trees · CPC title