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SECURING COMMUNICATIONS IN AN ENTERPRISE NETWORK OF LAN AND OR WAN BY UTILIZING AN ENHANCED ENCRYPTING NETWORK INTERFACE CARD

IP.com Disclosure Number: IPCOM000009830D
Original Publication Date: 2000-May-01
Included in the Prior Art Database: 2002-Sep-20

Publishing Venue

Motorola

Related People

Authors:
Robert Neal Smith Sourav Bhattacharya Ron Feigen

Abstract

This paper describes a unique way to encrypt communications utilizing a multi-phase process that minimizes the complexity of key exchange. This solution also takes advantage of a co-processor within the encrypting Network Interface Card (eNIC) to perform the encryption, freeing the main processor for other tasks. It also utilizes a protocol between eNIC to eNIC which steers the message flow in a hierarchical fashion, such that a sender node only needs to know a narrow subset of gateway nodes public keys. In the current version of a three layer hierarchical implementation, we propose an intra-LAN, intra-WAN and inter-WAN gateway structure.