Secure data exchange using format-preserving encryption
US12021847B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 3, 2022 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Dec 31, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems disclosed herein describe tokenizing data to generate a secure token that is limited in scope (e.g., directed to a specific recipient) and limited in time (e.g., valid for only a specified period of time). A detokenization process may be employed to recover encrypted data of the secure token without the need for any relational database lookup processes, thereby reducing cost while maintaining robust protection against unintended recipients that attempt to recover the encrypted data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.