Secure logging for irrefutable administration
US7770032B2 · kind B2 · utility
106Cited by
4References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2004 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Feb 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2101
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for protecting sensitive data in an entry of a log file for later audit, which includes encrypting the sensitive data in the log entry by using a random cryptographic key for each auditor authorized to access the log entry, encrypting the random cryptographic key by using an auditor's personal cryptographic key, and for each auditor not authorized to access the log entry, encrypting a fake cryptographic key having the same properties as the random cryptographic key by using an auditor's personal cryptographic key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.