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Data Encryption Algorithm Key Distribution Via Public Key Algorithm Disclosure Number: IPCOM000065819D
Original Publication Date: 1985-Aug-01
Included in the Prior Art Database: 2005-Feb-19

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Matyas, S [+details]


This article discloses a method of Data Encryption Algorithm (DEA) key distribution in a satellite network using a public key algorithm. Ordinarily in a satellite network with an encryption capability, data keys are distributed from a central node to the other nodes in the network via encryption under relatively permanent key-encrypting keys. These key-encrypting keys themselves are typically generated at a central site and distributed by using a courier. In contrast, the scheme of this article allows these key-encrypting keys to be securely distributed via the satellite network by employing a public key algorithm. The diagram shows a satellite network composed of a satellite and several earth station nodes.