Secure communication port redirector

Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output expansion

Reexamination Certificate

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Details

C710S024000, C710S062000, C710S240000

Reexamination Certificate

active

07660910

ABSTRACT:
A method and system that allows a host system application to securely communicate with a legacy device is provided. A redirector software module receives data that is destined for a host system serial COM port. Data is secured and re-directed to a legacy device via a network port instead of the serial COM port. Conversely, data destined for the host system is provided to a device server via a server COM port by the legacy serial device. The data can be encrypted and sent to the host system via the network. The redirector software module decrypts the encrypted data and presents it to the consumer application as if the data had arrived via the local COM port.

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Winfried Hofacker, Microcomputer Hardware Handbook, Ing. W. Hofacker GmbH, 1st edition, pp. 487-494.
Tactical Software, LLC, COM/IP Redirector User Guide, Jun. 20, 2004, Chapter 1, 3, Appendix A.

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