Management of cryptographic keys
US4912762A · kind A · utility
121Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1988 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Apr 18, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F7/1016
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for simplifying key management in situations where unique cryptographic keying relationships are required end-to-end between pairs of parties and a symmetric encryption algorithm is to be used. It is useful in cases where the parties come from disjoint subsets of the total population of parties. The method provides some of the characteristics of a public key crypto system (PKS) utilizing the public identities of the parties as part of the key, but lacks the property of PKS which allows a party to independently generate a secret key which is known only to that party.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.