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IP.com Disclosure Number: IPCOM000008231D
Original Publication Date: 1997-Sep-01
Included in the Prior Art Database: 2002-May-29
Document File: 2 page(s) / 85K

Publishing Venue


Related People

Bhavesh S. Shah Donald Beyer Brett Szudy Ferdinand Brillantes Ronald L. Shaffer II


Many systems use encryption techniques to protect sensitive voice/data information heing transmitted over the air. Both the transmitting and the receiving end need to have the same encryption key to encrypt and decrypt the voice/data success- fully. An example of an OTAR (Over The Air Rekeying) system is shown in Figure 1. At the center of the system is the Key Management Facility (KMF). It is the master key generator that distributes the encryption keys to the different secure unns over the air using the fixed infrastruc- ture equipmenr. A Key Variable Loader(KVL) is used to load the encryption keys into the Encryption Module Controller(EMC) of the KMF and the secure units.