Multi-party computing, data auditing and data processing method, system and equipment
A technology of multi-party computing and computing equipment, applied in the computer field, can solve problems such as difficult automatic operation, and achieve the effect of reducing the difficulty of promotion and the cost of participation
Active Publication Date: 2020-03-31
ALIBABA GRP HLDG LTD
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[0003]
However, there are still some practical defects in mpc at present, such as: 1. Each participant needs to write complex mpc code; 2. Each participant needs to execute the mpc code according to a certain protocol sequence; therefore, more expert manpower is required in use Participation, difficult to automate
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[0065] Secure Multi-Party Computation: It is a computing protocol in which multiple participants provide input and jointly calculate output. The characteristic of this protocol is that each participant only understands its own input and calculated output, but cannot understand the input of any other participant. For example, the "Millionaire Problem": Two participants each input their own wealth, and finally calculate who has more wealth, and do not know any information about the wealth of the other party.
[0066] Secure multiparty computation (secure multiparty computation, hereinafter referred to as mpc) technology is an advanced cryptography technology that allows multiple data holders to use their own data as input to calculate data output together without obtaining the plaintext of the other party's data. However, there are still some practical defects in mpc, such as: 1. Each participant needs to write complex mpc code; 2. Each participant needs to execute the mpc code ac...
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The embodiment of the invention provides a multi-party computing, data auditing and data processing method, a system and equipment. The multi-party computing method comprises the steps of obtaining afirst computing program prepared for computing nodes participating in multi-party computing; sending the first calculation program to the calculation node; and when the calculation is started, runninga second calculation program required for participating in the multi-party calculation, and triggering the calculation node to run the first calculation program. According to the method provided by the embodiment of the invention, one computing node prepares a computing program, namely an mpc program, for other computing nodes participating in multi-party computing, and other computing nodes do not need to compile the computing program; the participation cost of safe multi-party calculation is greatly reduced, and the difficulty of mpc popularization is reduced.
Description
technical field [0001] The present application relates to the field of computer technology, in particular to a method, system and equipment for multi-party computing, data auditing and data processing. Background technique [0002] Secure Multiparty Computation (Secure Multiparty Computation, hereinafter referred to as mpc) refers to multiple parties who have secret inputs and hope to use their secret inputs to jointly calculate a function. After the calculation, each party can receive the output, and each party can only understand its own input and output, but not the input and output of other parties. Secure multi-party computing is actually a distributed protocol among network users, which enables users to complete cooperative computing tasks without leaking their respective inputs. [0003] However, there are still some practical defects in mpc at present, such as: 1. Each participant needs to write complex mpc code; 2. Each participant needs to execute mpc code accordi...
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IPC IPC(8): G06F21/60G06Q10/10
CPCG06F21/602G06Q10/101
Inventor 洪澄
Owner ALIBABA GRP HLDG LTD