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SECURE COMMUNICATION SYSTEM ON INTERNET

IP.com Disclosure Number: IPCOM000007578D
Original Publication Date: 1995-Nov-01
Included in the Prior Art Database: 2002-Apr-08

Publishing Venue

Motorola

Related People

Authors:
Jingsheng Fu

Abstract

The present invention provides a method and apparatus for secure communications over Internet. The invention dynamically divides data in a packet into multiple variable length sub-packets, applies difi ferent keys to encrypt the sub-packets. Furthermore, the keys are dynamically changing. Aher a packet is sent, the keys are swapped, and/or some keys are replaced by other keys. The changed keys will be applied to the next packet. Because the total num- ber of combinations of sub-packets is almost unlim- ited, and the total number of combinations of keys is very big, it is very difftcult to intercept the encryption data. The system in the invention is very secure. On the other hand, the invention does not depend upon routers, gateways, repeater, bridges. So that the system in the invention is also flexible. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram of secure communi- cation system on Internet;