Abstract: A method and an apparatus to perform dynamic secure re-routing of data flows for public services are disclosed. In one embodiment, the method includes receiving at a first security appliance a public service message from a second security appliance via a public network. The public service message being associated with a session between the first and the second security appliances, being destined to a first network device coupled to the first security appliance, and including one of a public service request and a public service response. In response to the public service message, the method may further include determining whether a secure communication path exists between the first and the second security appliances.

Abstract: A method and an apparatus to perform Secure Real-time Transport Protocol-on-the-fly (SRTPoF) are disclosed. In one embodiment, the method includes monitoring negotiation between a first Voice-over-Internet-Protocol (VoIP) device and a second VoIP device after a call has been initiated between the first and the second VoIP devices, determining whether the first VoIP device is Secure Real-time Transport Protocol (SRTP)-capable and whether the second VoIP device is SRTP-capable, and performing SRTP-on-the-fly on a Real-time Transport Protocol (RTP) stream transmitted between the first and the second VoIP devices to make the call secure if the first VoIP device is not SRTP-capable and the second VoIP device is SRTP-capable. Other embodiments have been claimed and described.