Detection of unauthorized entities in communication systems
US9712323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2014 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Jan 7, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/162
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and systems are provided for detection of unauthorized entities in communication systems. The method includes obtaining a secret string by a first network element and generating a random number by the first network element. The method also includes computing a first cryptographic result by the first network element. The first cryptographic result is based on a cryptographic function, the secret string, and the random number. The method further includes attempting to transmit, by the first network element, a first packet that includes the random number to a second network element using a layer 2 packet terminating protocol. The method includes receiving, within a configured time, a second packet including a second cryptographic result at the first network element, and terminating transmission to the second network element when a second cryptographic result is different from the first cryptographic result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.