Patent ID: 9294447
Filing Date: 2016-03-22
CPC Classification: H04L,H04W

Claim Text:
1. A communication access control system, comprising: a computing entity comprising a processor and memory; at least one access control cell, implemented on the computing entity, for computing random input addresses and random output addresses upon a request of a system user; wherein said input and output addresses are based on a cryptographic key held by a service facility associated with said at least one access control cell, wherein the at least one access control cell generates each random output address using a cryptographically secure pseudo-random number generator, and computes each random input address as a symmetrical encryption function of a corresponding random output address and an encryption key, and wherein the access control cell receives a message from a first user containing an input address and routes that message to a second users after converting the input address into the corresponding output address using the cryptography key.