Auditing secret key cryptographic operations
US7418728B2 · kind B2 · utility
13Cited by
1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2004 |
| Grant date | Aug 26, 2008 |
| Priority date | — |
| Expiry date | Jul 18, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a cryptographic system, the unlocking of secret keys on a user system is audited and correlated with other events that typically occur after the secret key is used to perform a cryptographic operation. Audit evidence of secret key cryptographic operations is recorded for later review and/or analysis, for use as stored evidence of unauthorized activity and/or for use in refuting false claims of repudiation of authorized activity. Some systems might also provide users with user activity reports that can alert a user to suspicious or unauthorized activity using that user's access.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.