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[0055] The solutions provided in this specification will be described below in conjunction with the accompanying drawings.
[0056] figure 1 It is a schematic diagram of an implementation scenario of an embodiment disclosed in this specification. This implementation scenario involves multiple parties jointly performing security statistics. It can be understood that the above multiple parties may be two or more parties, for example, three parties, four parties and so on. In this embodiment of the specification, two parties jointly perform security statistics as an example for illustration. refer to figure 1 , the first party 11 has the first private data 10 of sample 1, the first private data 20 of sample 2, the first private data 30 of sample 3, the first private data 40 of sample 4, and the first private data 50 of sample 5 ; The second party 12 has the second privacy data 11 of sample 1, the second privacy data 21 of sample 2, the second privacy data 31 of sample 3, the ...
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PUM
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Abstract
The embodiment of the invention provides a multi-party joint security statistics method and device. The method comprises steps that a first party determines a corresponding first multiplication item according to a first data item of a target sample and / or a first logic value of a first filtering result of a first filtering condition; wherein the target sample is any sample in a sample set; a firstfragment of a first product result in a safe multiplication mode is obtained according to a first multiplication item of the party and a second multiplication item provided by a second party; the second party obtains a second fragment of the first product result; wherein the second multiplication item is determined by the second party according to a second data item of the target sample and / or asecond logic value of a second filtering result of a second filtering condition; according to the first fragment of the first product result of each sample in the sample set possessed by the party andthe second fragment of the first product result possessed by the second party, sample statistics operation is carried out through a multi-party security calculation mode; and safety and practicability can be simultaneously met.
Description
technical field [0001] One or more embodiments of this specification relate to the computer field, and in particular, to a method and device for multi-party joint security statistics. Background technique [0002] At present, there is a general need for multiple parties to jointly make statistics on the data of all parties, such as the joint statistics of several commercial insurance institutions to obtain the overall situation of the industry, or the joint statistics of several medical institutions to obtain the overall situation of certain diseases. Since the data of all parties is confidential, when doing joint statistics, all parties need to protect their own data and not leak it to other parties. This has brought great difficulties to the joint statistics of multiple parties. [0003] In a typical statistical problem, the sample data is vertically distributed in multiple parties, and each party has different types of information of the sample. It is necessary to combin...
Claims
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