Session key recovery system and method
US6246771A · kind A · utility
85Cited by
19References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0894
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for providing access to an encrypted communication involves recording the session during which the communication is encrypted, replaying the session to recover data used to recover a session key, accessing a server to retrieve secret information also used to generate the session key, and recreating the session key using the recovered data and secret information. The system and method includes provision for authenticating parties to the key recovery, protecting communications required to retrieve the secret key, and establishing a record of the key recovery to serve as an audit trail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.