US 2002/0059516 A1 · Securing Voice over IP traffic

Abstract

A method of sending streamed data over an IP network from a first node 1 to a second node 4, the method comprising using Internet Key Exchange (IKE) to establish an IKE security association (SA) between the first and second nodes 1,4. A shared secret is established between the first and second nodes using the IKE SA, and the streamed data encrypted at the first node 1 with a cipher using the shared secret or a key derived using the shared secret. IP datagrams are constructed containing in their payload, segments of the encrypted streamed data, the datagrams not including an IPSec header or headers. The IP datagrams are then sent from the first node 1 to the second node 4.

Claims7

Dependent claims

A method of sending streamed data over an IP network from a first node to a second node, the method comprising:

using Internet Key Exchange (IKE) to establish an IKE security association (SA) between the first and second nodes;
using the IKE SA to establish an IPSec SA between the first and second nodes;
encrypting the streamed data at the first node with a cipher using a shared secret forming part of said IPSec SA;
constructing IP datagrams containing in their payload segments of the encrypted streamed data, the datagrams not including an IPSec header or headers;
and
sending the IP datagrams from the first node to the second node.

3 more elements

Dependencies are inferred from the claim text.

Securing Voice over IP traffic

Life of this patent

Securing Voice over IP traffic

Life of this patent

Abstract

Claims7