System and method for secure transmission of RTP packets
US7464267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2004 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Feb 20, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3236
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method for establishing a shared secret media key between each of a caller endpoint and a callee endpoint for securing a real time media channel comprises: i) establishing a caller authenticated signaling session with the caller endpoint using a caller shared secret authentication key and a symmetric encryption algorithm; and ii) establishing a callee authenticated signaling session with the callee endpoint using a callee shared secret authentication key and the symmetric encryption algorithm. A caller public value is received from the caller endpoint through the caller authenticated signaling session and sent to the callee endpoint through the callee authenticated signaling session. The caller public value is a public value of a pair of values generated by the caller endpoint and useful for calculating a shared secret media key. A callee public value is received from the callee endpoint through the callee authenticated signaling session and sent to the caller endpoint through the caller authenticated signaling session. The callee public value is a public value of a pair of values generated by the callee endpoint and useful for calculating a shared secret media key. Bo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.