Calculation device for encryption using public key and encryption method thereof
US11563577B2 · kind B2 · utility
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3References
13Claims
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Key dates
| Filing date | Nov 17, 2017 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Jul 2, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are a calculation device for encryption using a public key and an encryption method thereof. The present method comprises: a step for setting a secret key, and generating a public key using the secret key and an error extracted from a discrete Gaussian distribution or a distribution that is within a short statistical distance thereto; and a step for applying the public key to a message, and then performing a rounding process to encrypt the message. Accordingly, encryption efficiency can be enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.