| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for protecting SIP (session initiation protocol)-based application which can achieve specially high-level security by using a means that is easily mounted. <P>SOLUTION: In a method for protecting SIP-based applications, SIP messages are analyzed and malicious SIP messages that potentially constitute a security risk for the SIP-based application are identified. According to the method, the prescribed number N of pre-configurable parameters, that is identities are extracted from the SIP messages, the identities are compared with identities extracted from the past SIP messages about each SIP message, a malicious level ML is assessed for each SIP message on the basis of the comparison. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
