Dot product protocol-based protocol security quantizing method and system

A technology of protocol security and quantification method, which is applied in the field of protocol security quantification method and system based on the dot product protocol, can solve the problems that the absolute security of zero leakage cannot be realized, and the calculation method cannot be applied, so as to improve the use efficiency Effect
CN101895530AInactive Publication Date: 2010-11-24ANHUI NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI NORMAL UNIV
Publication Date
2010-11-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a dot method product protocol-based protocol security quantizing method and a dot product protocol-based protocol security quantizing system. The method comprises the following steps of: acquiring the variable value ranges before and after protocol execution of all parties respectively; computing the differences between the maximal values and the minimal values of the variable value ranges before and after the protocol execution of all the parties respectively; multiplexing the differences before the protocol execution of all the parties to obtain security parameters before the protocol execution; multiplexing the differences after the protocol execution of all the parties to obtain the security parameters after the protocol execution; and acquiring a protocol security value according the security parameters before and after the protocol execution. The method of the invention realizes the aim of quantizing the protocol security by processing the variable value ranges of all the parties before and after the protocol execution and using the processing results as representative values of the protocol security. The method and the system can quantify the security of different protocols, are favorable for selecting the protocol of which the security meets actual demands according to actual application conditions and improve the service efficiency of secure multi-party computation.
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Description

technical field

[0001] The invention relates to the field of information security, in particular to a protocol security quantification method and system based on a dot product protocol. Background technique

[0002] Secure multi-party computation (SMC) is mainly used to study cooperative computing problems between a group of mutually distrusting parties under the premise of protecting private information, and its basic requirement is to ensure the independence of input , the correctness of the calculation, while not disclosing the input information of each participant participating in the agreement to other members participating in the calculation. In simple terms, Secure Multi-Party Computation is a protocol in which parties employ a special method to compute any parameter of many variables. The types of secure multi-party computing protocols include: OT-based secure multi-party computing protocols, dot product protocols, and the like.

[0003] The existing performance an...

Claims

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