A security outsourcing method for two paired pairs based on two cloud servers

A bilinear pairing, cloud server technology, applied in the field of cloud computing, can solve the problems of high computing cost, high computing cost, high expected complexity, and achieve the effect of high computing efficiency and fewer operations.

Active Publication Date: 2021-06-04
SHANGHAI UNIV
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  • Claims
  • Application Information

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Problems solved by technology

Subsequently, Jiang Tiejin and others released a cloud outsourcing computing method based on a single server, but the estimated complexity is too high and the computing cost is too high
Chen Xiaofeng et al. and Tian Haibo et al. released a cloud outsourcing computing method based on two servers, which improves computing efficiency. However, in actual outsourcing scenarios, many cases involve multiple bilinear pairing operations. However, the above The methods mentioned are all for the safe outsourcing operation of a single bilinear pair, the calculation efficiency is not ideal, and the calculation cost is high

Method used

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  • A security outsourcing method for two paired pairs based on two cloud servers
  • A security outsourcing method for two paired pairs based on two cloud servers
  • A security outsourcing method for two paired pairs based on two cloud servers

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Embodiment Construction

[0049] Preferred embodiments of the present invention are described in detail as follows:

[0050] In this example, see figure 1 , a security outsourcing method for two bilinear pairings based on two servers, comprising the following steps:

[0051] Step 1: The outsourced user T calls the program Rand to generate a six-tuple, where Rand is a subroutine used to improve the calculation speed, and is used to pass the server U 1 with U 2 To realize the outsourced method M-Pair of bilinear pairing, specifically: the outsourced user T first needs to call the program Rand, input G 1 , G 2 , a bilinear pairing and other random numbers, generate and output a six-tuple {V 1 , V 2 , v 1 V 1 , v 2 V 2 , e(v 1 V 1 , v 2 V 2 )}, {V 1 , V 2 , v 1 V 1 , v 2 V 2 , e(v 1 V 1 , v 2 V 2 )} results can be pre-calculated, where v 1 , V 1 ∈RG 1 , V 2 ∈RG 2 , is a random number in the remainder class modulo q with zero elements removed, RG 1 is G 1 A random point in ...

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Abstract

The invention discloses a secure outsourcing calculation method for two bilinear pairings based on two cloud servers. Firstly, a user T who performs outsourcing calculation calls a subroutine Rand that improves the calculation speed to generate a six-tuple, and uses the six-tuple Some elements in the logic split e(A,B)*e(C,D) into four parts; then call Rand to generate two new six-tuples, and then make 4 inquiries to the computing server, and the server calculates The results of bilinear alignment are output, four of which are used as intermediate calculation results, and the other four are used as test data; whether the output result of the final detection is correct or not, the result is calculated according to the server's response. The method of the present invention is suitable for equipment with limited resources, and its calculation efficiency is higher, and the number of calculations is less, and the outsourcer does not need to perform expensive calculation SM and Exp operations, and the method of the present invention is suitable for multiple bilinear outsourcing Computing scenarios have more practical application value.

Description

technical field [0001] The invention relates to an outsourcing computing method, in particular to a method for using a cloud server to safely outsource bilinear pairings, which is applied in the technical field of cloud computing. Background technique [0002] Cloud computing has attracted more and more attention in academia and industry, and how to outsource the costly computing security to untrusted servers has attracted more and more attention from the scientific community. In the outsourced computing model, a customer with limited computing power outsources tasks to one or more servers in the cloud, which is outsourced computing. For resource-constrained client devices, it can enjoy unlimited computing resources on a pay-per-use basis, which can greatly save capital expenditures on hardware / software deployment and maintenance. [0003] While outsourcing computing brings enormous benefits, it inevitably introduces some new security issues and challenges. First, computin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L9/30H04L29/08
CPCH04L9/3066H04L63/20H04L67/10
Inventor 毛震任艳丽张新鹏
Owner SHANGHAI UNIV
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