Patent ID: 8837729
Filing Date: 2014-09-16
Classification: H04L,H04W

Abstract:
1. A method of ensuring privacy in communications between a first party and one or more second parties over a communications network, the method comprising: making same pseudo-random sequence of values available to each of the first and second parties, and maintaining a mapping between the pseudo-random sequence of values and values which is used by a party receiving a message sent by the first party to handle the message or its contents; in messages to be sent between the first party and the second party, using a value from the pseudo-random sequence in place of the value to which the value from the pseudo-random sequence is mapped; at the receiving party, identifying the replaced value on the basis of the substituted value, and handling the message accordingly; and changing the value used from the pseudo-random sequence from message to message or periodically, wherein the first and second parties are end parties of the messages, and wherein the value is used as an identifier of the first party or is further processed to generate the identifier.