Practical sorting on large-scale encrypted data
US12149604B2 · kind B2 · utility
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6References
13Claims
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Key dates
| Filing date | Jun 5, 2020 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Jun 24, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/125
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed is a calculation device. The present calculation device includes: a memory for storing a plurality of homomorphic ciphertexts for an approximate message including an error; and a processor for sorting the plurality of homomorphic ciphertexts by using a 5-way sorter which can sort five homomorphic ciphertexts in a single stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.