| 摘要 |
<p>The present invention is concerned with a method of message authentication in communication networks with multicast-enabled routers or switches. The latter are tasked to support the packet source authentication: On reception of a multicast packet, the router attests the authenticity of the sender of the packet, and adds corresponding authentication information to the packet, before forwarding it in the normal multicast manner. Any receiver of the multicast packet then uses the authentication information collected by the packet while traversing the network to verify the original packet source.</p> |
