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Data transmission method and device and electronic equipment

A data transmission method and data technology, applied in the computer field, can solve problems such as large amount of calculation, transmission failure, and poor robustness, and achieve the effects of improving robustness, avoiding transmission failure, and improving efficiency

Active Publication Date: 2020-01-07
ADVANCED NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, on the one hand, due to the need to perform multiple encryptions on the data held by the sender, the amount of calculation is large; on the other hand, due to the need for the participation of a third party, if the third party has a communication failure, the transmission will fail, making the robustness poor

Method used

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  • Data transmission method and device and electronic equipment
  • Data transmission method and device and electronic equipment
  • Data transmission method and device and electronic equipment

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present specification in combination with the drawings in the embodiments of the present specification. Obviously, the described embodiments are only some of the embodiments of the present specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.

[0028] Oblivious transfer (Oblivious Transfer, OT), also known as oblivious transfer, is a two-party communication protocol that can protect privacy. The sender can have multiple data. One or more of the plurality of data can be obtained by the recipient via oblivious transmission. During this process, the sender does not know what data the receiver has received; and the receiver cannot obtain any data other than the data it has received.

[0029] ...

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PUM

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Abstract

The embodiment of the invention provides a data transmission method and device and electronic equipment. The method comprises the following steps: a sender generates a plurality of first random numbers according to a first random seed; a third party generates a second random number according to the first random seed and the initial position, and sends the second random number to a receiver; the receiver receives the second random number; the receiver calculates the offset according to the target position and the initial position and sends the offset to the sender; the sender receives the offset, encrypts the plurality of pieces of service data according to the plurality of first random numbers and the offset, and sends the plurality of pieces of encrypted ciphertext data to a receiver; andthe receiver receives the plurality of ciphertext data and decrypts the ciphertext data located at the target position in the plurality of ciphertext data according to the second random number to obtain final service data to be selected. According to the data transmission method and device and the electronic equipment, the efficiency and robustness can be improved.

Description

technical field [0001] The embodiments of this specification relate to the field of computer technologies, and in particular, to a data transmission method, device, and electronic equipment. Background technique [0002] In business practice, it is particularly urgent to enable all parties to carry out safe and effective multi-party cooperation without disclosing their own data. Oblivious Transfer (OT) is a technique in secure multi-party computation. This technology enables communicating parties to pass data in a way that obfuscates their options. Specifically, the sender may have multiple data. One or more of the plurality of data can be obtained by the recipient via oblivious transmission. During this process, the sender does not know what data the receiver has received; and the receiver cannot obtain any data other than the data it has received. Inadvertent transmission has great value and prospects in social, military, commercial, financial, government and other fie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
CPCH04L9/0869
Inventor 李漓春赵原周亚顺
Owner ADVANCED NEW TECH CO LTD
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