Sanctum Ltd.

Perfecto Technologies Ltd.

Eilon Solan

Gil Raanan

Eran Reshef

Eran Rechef

The present invention is a security gateway system positioned between an external, untrusted computing environment and an internal, trusted computing environment that converts messages received from the external environment into simplified messages and converts the simplified messages into messages suitable for use on the internal environment. The conversion involves the removal of external environment transfer protocols and the reduction of the content of the messages left after removing the protocols into a simplified representation of the content to create a simplified message. The simplified representation is then converted to an internal message by converting the simplified representation to a representation appropriate to the internal environment, including to applications operating on the internal environment, and adding internal environment protocols, including transfer protocols, to the converted message. Simplified representations exist for some but not necessarily all types of content which may be received from the external environment, thus limiting the content which may be passed from the external to the internal environment.

Method and system for protecting operations of trusted internal networks

A method for protecting an operating environment on a processor from a rogue program operating on the processor comprising isolating simultaneously executing programs or operating systems is disclosed. Memory space for use only by the first program while the first program is executing is allocated. Communication between the first program and the computer's operating environment is accomplished through a single link employing one of several methods including using shared memory space, a dedicated interrupt or a dedicated I/O port. The monitor manages a restricted operating environment for the first program on the processor, the restricted operating environment preventing the first program from accessing resources on the processor except for the allocated memory space the single communication link.

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Herzelia, Israel

Eilon Solan