Authentication Based on Signaling Token Piggybacking

In order to solve the question of identify of H.323 video conferencing system, this paper presents an authentication mechanism based on signaling token piggybacking. The mechanism is an authentication scheme based on public key, and can divide into two parts: public key registration and check of the identity which happens in the establishment of conference. This paper expatiates the authentication mechanism based on signaling token piggybacking, analyzes in theory and in experimental comparison, and verifies the conclusion that the authentication based on signaling token piggybacking performs rapidly and costs little time to achieve authentication and ensure the system safe.