Hybrid key derivation to secure data
US11632246B2 · kind B2 · utility
0Cited by
8References
20Claims
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Key dates
| Filing date | Dec 30, 2020 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | Jun 7, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3268
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an approach for securing data, a processor publishes a traditional public key in a traditional certificate and a PQC public key in a PQC certificate. A processor encrypts data with a hybrid shared secret, the hybrid shared secret generated with a key derivation function by using a traditional shared secret based on the traditional public key and a PQC shared secret based on the PQC public key. A processor decrypts the data with the hybrid shared secret based on a traditional private key and a PQC private key. A processor signs the data with a traditional signature followed by a PQC signature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.