Federal protocol encryption method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a federal protocol encryption method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining an original plaintext sent by a participant, and splitting the original plaintext into at least one to-be-encrypted numerical value; under the condition that the first atomic ciphertext table meets a preset condition, atomic ciphertexts corresponding to the at least one to-be-encrypted numerical value are determined in the first atomic ciphertext table; and adding the atomic ciphertexts corresponding to the at least one to-be-encrypted numerical value to obtain a target ciphertext. Therefore, in the embodiment of the invention, the atomic ciphertext corresponding to the to-be-encrypted numerical value after the original plaintext is split is obtained by looking up the table, and the target ciphertext is obtained by adding based on the atomic ciphertext, so that the encryption of the original plaintext is realized without directly carrying out encryption calculation on the whole original plaintext, the calculation amount of encryption calculation can be reduced, and the encryption efficiency is improved. The overhead of encryption calculation is reduced, the time of encryption calculation is shortened, and the encryption efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of machine learning, in particular to a federation protocol encryption method, device, electronic equipment and storage medium. Background technique [0002] With the continuous development of artificial intelligence technology, more and more enterprises have begun to carry out machine learning and joint modeling based on federation protocols. [0003] In order to ensure the privacy of data, the homomorphic encryption algorithm (paillier) is generally used in federated learning algorithms to encrypt data during transmission. The homomorphic encryption algorithm directly encrypts a single plaintext to avoid the situation that different plaintexts correspond to the same ciphertext. Homomorphic encryption algorithms mainly use operations such as encryption, decryption, addition, and multiplication. Based on the existing statistical data, in the running time of a single operation process of the homomorphic enc...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a federal protocol encryption method, device, electronic equipment, and storage medium to solve the problems in the prior art that the encryption process takes a long time, the encryption calculation overhead is large, and the encryption efficiency is low.

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