04-007: Voice Privacy and Secure Telecommunications Over Public Switched Telephone Networks

This Mason technology can provide voice privacy and secure communications on public switched telephone networks.

This infrastructure houses two types of networks: a transport network and a signaling network.
Entry points can be a service switching point, a mobile switching center or a base station.
The telephone may encrypt and decrypt speech using at least one encryption key.

- Implemented at the ASE Layer of the SS7 Protocol Model
- Privacy to both Wireless and Wireline networks
- Certificate Authorities and Authentication Centers
- Cryptographic telephone sets
- Maintains Certificate Revocation Lists

Market Significance:
More and more American citizens are relying on electronic communications for a range of purposes, from communicating with their workplace to researching competitive analysis reports. In the process they are exposing more details of their lives (and businesses) to potential law enforcement surveillance, and are leaving increasingly revealing and easily captured "electronic footprints" or "packets" wherever they go.
An eavesdropper can easily monitor conversations.

Currently, existing security architectures in wireline and wireless telephone infrastructures fall short of providing end-to-end voice privacy, as well as authentication and/or access control for subscribers. This invention solves this problem by providing end-to-end voice privacy and eliminating the ability to "listen in" to private conversations.
Implementation occurs on top of existing architectures without major modifications.