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A task allocation method for crowd sensing system with privacy protection

A crowd-sensing system and task allocation technology, applied in transmission systems, data processing applications, buying and selling/lease transactions, etc., to protect price privacy

Active Publication Date: 2021-06-11
SUZHOU INST FOR ADVANCED STUDY USTC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned patented technologies are still unable to achieve the optimal matching between users and tasks without revealing the privacy of users and data consumers

Method used

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  • A task allocation method for crowd sensing system with privacy protection
  • A task allocation method for crowd sensing system with privacy protection
  • A task allocation method for crowd sensing system with privacy protection

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0065] The task allocation method of the group intelligence sensing system with privacy protection proposed by the present invention, such as figure 1 As shown, the specific implementation of the task release and combination module includes the following steps:

[0066] S11: A semi-trusted third party uses the Paillier encryption system to generate an encrypted public key Pk a and the decryption private key Sk a . where the public key Pk a It can be used for data encryption and is disclosed to the entire system; the decryption private key is not disclosed to others and is only used to decrypt encrypted data by a semi-trusted third party. Since the Paillier encryption system can achieve homomorphic operations, the required mathematical operations can be completed on the basis of privacy protection. The specific supported homomorphic operations include homomorphic addition and homomorphic multiplication, as follows:

[0067] E(key+N i )=E(key)E(N i ) Formula 6

[0068] E...

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Abstract

The invention discloses a task assignment method of a group intelligence sensing system with privacy protection, comprising: a semi-trusted third party generates an encryption public key and a decryption private key, and releases the encryption public key to other parties in the group intelligence sensing system People; the task publisher submits the crowd sensing task to the platform of the crowd sensing system, including task requirements, the budget and weight of each task encrypted with the public key, and then the platform releases the task demand information to the smart mobile terminal users ; After reading the task description, the smart mobile terminal user submits the interested task set and the task quotation encrypted with the public key to the platform. The advantage of the present invention is that: the user uses dynamic IP to interact with the platform, combined with digital authentication technology, realizes anonymization, which can ensure that the platform cannot establish the association between the user's real IP and the provided data, thereby protecting the authenticity of the submitted sensory data. The included potential privacy data will not be leaked; using homomorphic encryption and permutation technology, the price privacy of users and task publishers is protected.

Description

technical field [0001] The invention belongs to the field of resource allocation, and in particular relates to a method for task allocation of a group intelligence sensing system with privacy protection. Background technique [0002] As one of the key technologies of the Internet of Things application, crowd sensing aims to obtain information of interest to users in real time in a wider sensing area through various mobile devices attached to people such as smartphones and PDAs. Compared with traditional data collection methods, crowd sensing can effectively reduce the time and cost required for data collection. The problem of task allocation, that is, how to assign sensing tasks to the most suitable users, and how to achieve the optimal matching between tasks and users is the core issue in crowd sensing, and it is also the most important problem facing the realization of crowd sensing systems. One of the challenges. [0003] A crowd-sensing system includes several intellig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q30/06H04L29/06
CPCG06Q30/0601G06Q30/0611H04L63/0442
Inventor 黄河曹振孙玉娥吴晓灿杜扬黄丹镭
Owner SUZHOU INST FOR ADVANCED STUDY USTC
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