The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2011
Filed:
Jan. 26, 2007
Saverio Niccolini, Heidelberg, DE;
Sandra Tartarelli, Heidelberg, DE;
Roman Schlegel, Heidelberg, DE;
Marcus Brunner, Heidelberg, DE;
Saverio Niccolini, Heidelberg, DE;
Sandra Tartarelli, Heidelberg, DE;
Roman Schlegel, Heidelberg, DE;
Marcus Brunner, Heidelberg, DE;
NEC Corporation, Tokyo, JP;
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.