Two-party storage of encrypted sensitive information
US8335933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2009 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Mar 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A secure storage system secures information of a client by first encrypting the information with a first key to generate first-key encrypted data. The secure storage system then encrypts with a second key the first-key encrypted data and the first key to generate second-key encrypted data. The system provides the client with a first portion of the second-key encrypted data. The system stores a second portion of the second-key encrypted data and the second key. When the confidential information is needed, the client provides the first portion. The system retrieves the second portion. The system then decrypts with the second key the first portion and the second portion to generate the first-key encrypted data and the first key. The system then decrypts with the first key the first-key encrypted data to generate the unsecure confidential information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.