Homomorphic encryption system for supporting approximate arithmetic operation and method of operating the same
US12231531B2 · kind B2 · utility
0Cited by
9References
20Claims
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Key dates
| Filing date | May 9, 2022 |
| Grant date | Feb 18, 2025 |
| Priority date | — |
| Expiry date | Aug 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3073
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A homomorphic encryption system includes a homomorphic encryption device encrypting original data into a first ciphertext using a homomorphic encryption algorithm, and a homomorphic encryption operation device receiving the first ciphertext from the homomorphic encryption device and performing an approximate arithmetic operation of a transcendental function with respect to the first ciphertext and a second ciphertext by performing a homomorphic multiplication operation in a binary tree structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.