Key confirmed authenticated key exchange with derived ephemeral keys
US7908482B2 · kind B2 · utility
13Cited by
8References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 18, 2005 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Jan 28, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Key confirmed (KC) authenticated key exchange (AKE) with derived ephemeral keys protocol using a mathematical group is described. In one aspect, a first party, using the mathematical group, determines whether a second party has received information to compute an agreed session key value for exchanging information securely with the first party. At least a subset of the received information is computed using derived ephemeral keys of the first and second parties. The first party generates the agreed session key value only when the second party has demonstrated receipt of the information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.