Method and apparatus for securely forgetting secrets
US7770213B2 · kind B2 · utility
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1References
21Claims
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Assignee
Inventors
Key dates
| Filing date | Apr 17, 2006 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Jan 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0894
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention provides a system that facilitates securely forgetting a secret. During operation, the system obtains a set of secrets which are encrypted with a secret key Si, wherein the set of secrets includes a secret to be forgotten and other secrets which are to be remembered. Next, the system decrypts the secrets to be remembered using Si, and also removes the secret to be forgotten from the set of secrets. The system then obtains a new secret key Si+1, and encrypts the secrets to be remembered using Si+1. Finally, the system forgets Si.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.