Title:
秘匿情報処理システムおよび秘匿情報処理方法
Document Type and Number:
Japanese Patent JP7205016
Kind Code:
B2
Abstract:
A homomorphic inference device (500) divides a model ciphertext into a ciphertext for inference and a ciphertext for computation, generates a preliminary result ciphertext by a homomorphic operation algorithm without decrypting the ciphertext for computation and a data ciphertext, and generates an inference result ciphertext by a homomorphic operation algorithm, using the preliminary result ciphertext and the ciphertext for inference that have not been decrypted. A partial decryption device (600) generates a partial decryption result by performing partial decryption on the inference result ciphertext, using a model secret key. A final decryption device (700) decrypts an inference result from the partial decryption result, using a data secret key.
Inventors:
Yoshihiro Hiromasa
Application Number:
JP2022568484A
Publication Date:
January 16, 2023
Filing Date:
December 24, 2020
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G09C1/00
Domestic Patent References:
| JP2019113665A | ||||
| JP2019046460A |
Foreign References:
| WO2019102624A1 | ||||
| US20160350648 |
Attorney, Agent or Firm:
Patent Attorney Corporation Cross Border Patent Office
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