SIP Security Architecture Based on Source Address Validation

Security is one of the key issues on Session Initial Protocol (SIP) based Internet multimedia communication system, and there are various SIP attacks which have employed forged source addresses. Combining the SIP architecture and source address validation, we propose a new SIP security architecture, including a new security framework, a two-way authentication algorithm and an IBS based identity security algorithm in the source address validation environment. These schemes would make the SIP application more security and trust for multimedia communication in the public Internet.