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Method and device for acquiring block chain data, electronic equipment and storage medium

A blockchain and block technology, applied in the blockchain field, can solve the problem that trusted applications cannot securely access and obtain relevant data.

Pending Publication Date: 2021-08-06
ALIPAY (HANGZHOU) INFORMATION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In related technologies, in order to ensure the security of trusted applications running in TEE (Trusted Execution Environment, Trusted Execution Environment) at the operating system leve

Method used

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  • Method and device for acquiring block chain data, electronic equipment and storage medium
  • Method and device for acquiring block chain data, electronic equipment and storage medium
  • Method and device for acquiring block chain data, electronic equipment and storage medium

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Embodiment Construction

[0024] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. Implementations described in the following exemplary embodiments do not represent all implementations consistent with one or more embodiments of this specification. Rather, they are merely examples of apparatuses and methods consistent with aspects of one or more embodiments of the present specification as recited in the appended claims.

[0025] It should be noted that in other embodiments, the steps of the corresponding methods are not necessarily performed in the order shown and described in this specification. In some other embodiments, the method may include more or less steps than those described in this specification. In addition, a single step described in this...

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Abstract

One or more embodiments of the present specification provide a method and device for obtaining block chain data, electronic equipment and a storage medium, the method is applied to a first trusted computing node, and a trusted application runs in a first trusted execution environment deployed by the first trusted computing node. The method comprises the following steps: acquiring a remote authentication report for an oracle machine service program, wherein the oracle machine service program runs in a second trusted execution environment; under the condition that it is determined that the oracle machine service program is credible according to the remote authentication report, sending a block chain data query request obtained from a credible application to the oracle machine service program, so that the oracle machine service program obtains block data on a target block chain in response to the block chain data query request; and receiving block data returned by the oracle service program and a digital signature corresponding to the block data, and returning the block data to the trusted application under the condition that the digital signature is verified successfully through a public key corresponding to the oracle service program.

Description

technical field [0001] One or more embodiments of this specification relate to the field of blockchain technology, and in particular to a method, device, electronic device, and storage medium for acquiring blockchain data. Background technique [0002] In related technologies, in order to ensure the security of trusted applications running in TEE (Trusted Execution Environment, Trusted Execution Environment) at the operating system level, system call interfaces such as network call interfaces are generally not provided, which leads to Trusted applications in TEE cannot securely access and obtain relevant data on the blockchain. Contents of the invention [0003] In view of this, one or more embodiments of this specification provide a method, device, electronic device, and storage medium for acquiring blockchain data. [0004] In order to achieve the above purpose, one or more embodiments of this specification provide technical solutions as follows: [0005] According to ...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F21/64G06F21/60G06F21/44G06F21/53
CPCG06F21/6218G06F21/64G06F21/604G06F21/44G06F21/53
Inventor 吴行行余逸荣邱鸿霖陈辰
Owner ALIPAY (HANGZHOU) INFORMATION TECH CO LTD
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