Terminal device performing homomorphic encryption, server device processing ciphertext and methods thereof
US11115183B2 · kind B2 · utility
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4References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 22, 2020 |
| Grant date | Sep 7, 2021 |
| Priority date | — |
| Expiry date | Apr 22, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3093
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A decryption method includes: receiving a homomorphic ciphertext; and obtaining a result value added an error value at a message from the received homomorphic ciphertext. The error is disposed on the least significant bit (LSB) side in the homogeneous ciphertext, and the message is disposed at a position adjacent to the error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.