Computer-implemented system and method for protecting sensitive data via data re-encryption
US10277563B2 · kind B2 · utility
3Cited by
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18Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 17, 2016 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Apr 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method for protecting sensitive data via data re-encryption is provided. Encrypted data is maintained. A data query is received from a user associated with a public key and a secret key. Results of the query are computed by identifying at least a portion of the encrypted data and by adding plaintext for the identified portion of the encrypted data as the results. A re-encryption key is generated for the results using the public key of the user and the results are re-encrypted using the re-encryption key. The re-encrypted results are then transmitted to the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.