Offline shared security key calculation
US8615651B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2010 |
| Grant date | Dec 24, 2013 |
| Priority date | — |
| Expiry date | Aug 16, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0869
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for offline shared security key calculation. In one aspect, a method includes entering a first secure communication session with a remote device. A plurality of nonces are provided to the remote device during the first secure communication session. The first secure communication session is exited. A communication is received from the remote device after exiting the first communication session. The communication includes an indication of one of the plurality of nonces. A session key is generated using the indicated one of the plurality of nonces. A second secure communication session is entered with the remote device using the generated session key. Other embodiments of this aspect include corresponding systems, apparatus, and computer programs, configured to perform the actions of the methods, encoded on computer storage devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.