Data transmission method, device and electronic device
A data transmission method and data technology, which is applied in the computer field, can solve problems such as a large amount of calculation, and achieve the effects of improving efficiency, reducing the amount of calculation, and realizing inadvertent transmission
Active Publication Date: 2022-01-21
ADVANCED NEW TECH CO LTD
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Problems solved by technology
Due to the need to perform multiple encryptions on the data held by the sender, the amount of calculation is large
Method used
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[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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The embodiments of this specification provide a data transmission method, device, and electronic equipment. The method includes: the sender generates a plurality of first random numbers according to a first random seed, encrypts a plurality of business data held by itself according to the plurality of first random numbers and an offset, and sends the encrypted multiple ciphertext data; the receiver receives the multiple ciphertext data, uses the offset to cover up the target position, obtains the obfuscated position, and sends the obfuscated position to a third party; the third party receives the obfuscated position , generate a second random number according to the first random seed and the obfuscation position, and send the second random number to the receiver; the receiver receives the second random number, and uses the second random number to The ciphertext data located at the target position among the plurality of ciphertext data is decrypted to obtain the service data to be selected. The data transmission method, device and electronic equipment in the embodiments of this specification can reduce the amount of computation.
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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IPC IPC(8): H04L9/40H04L9/08
CPCH04L63/0428H04L9/0869
Inventor 李漓春赵原周亚顺
Owner ADVANCED NEW TECH CO LTD