APPARATUS AND METHOD WITH HOMOMORPHIC ENCRYPTION OPERATION

An apparatus with a homomorphic encryption operation includes: one or more processors configured to: generate a modified vector by preprocessing vector components of an operand ciphertext of a blind rotation operation based on an order of a polynomial of an output ciphertext of the blind rotation op...

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Bibliographic Details
Main Authors Choi, Rakyong, Eom, Jieun, Deriabin, Maksim, Kim, Andrey, Lee, Yongwoo
Format Patent
LanguageEnglish
French
German
Published 10.04.2024
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:An apparatus with a homomorphic encryption operation includes: one or more processors configured to: generate a modified vector by preprocessing vector components of an operand ciphertext of a blind rotation operation based on an order of a polynomial of an output ciphertext of the blind rotation operation and a modulus of the operand ciphertext; and generate a homomorphic encryption operation result by performing the blind rotation operation based on a public key for performing the blind rotation operation and the modified vector.
Bibliography:Application Number: EP20230192922