The computer is designed with two chambers: open and secure. The user switches between chambers depending on the task and only one can be active at once.
The open chamber of the computer runs a conventional operating system and works like today’s computers. It has access to all permanent storage, networking, and I/O ports and it gives the user the freedom to explore the internet and install applications without jeopardizing the security of their critical data.
The secure chamber has its own CPU and memory protected by a hardware security wall. The secure chamber has its own independent operating system and this chamber can only access other networks secured by the same key set. There is no permanent memory or direct access to I/O or unsecured networks.
The key provides the hardware firewall between the open and secure chambers. Inserting the key enables the secure chamber, removing it disables the chamber, and inserting a different key will activate a different chamber (allowing multiple security zones). The key is designed so that it cannot be copied.
The secure chamber does not have any non-volatile storage, meaning it can store data in the open chamber, but only after the key encrypts it. Removing or disabling the key protects the data.
The secure network may extend from local workspaces to remote users where all the secure chambers are linked into a network that is isolated from the internet.
A secure data centre forms the core of the network.
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