Patent · US Active

Method for protecting SIP-based applications

US8085763B2 · kind B2 · utility

2Cited by

4References

24Claims

0Family size

Assignee

NEC CORPORATION · JP

Inventors

Saverio Niccolini · Heidelberg, DE
Sandra Tartarelli · Heidelberg, DE
Roman Schlegel · Wettingen, CH
Marcus Brunner · Wuppertal, DE

Key dates

Filing date	Jan 26, 2007
Grant date	Dec 27, 2011
Priority date	—
Expiry date	Apr 23, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04L63/1433
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for protecting SIP (Session Initiation Protocol)-based applications wherein SIP messages are analyzed and malicious SIP messages that potentially constitute a security risk for the SIP-based application are identified is discloses. Regarding a realization of a particularly high security [level] with means that are easy to implement—a pre-definable number N of pre-configurable parameters—identities—is extracted from the SIP messages and that for each SIP message a comparison of the identities with the identities extracted from previous SIP message is performed, on the base of which a maliciousness level ML is assessed for every SIP message.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.