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Method to automatically lock/encrypt files or directories on a mobile computing system based on domain references

IP.com Disclosure Number: IPCOM000015160D
Original Publication Date: 2002-Mar-29
Included in the Prior Art Database: 2003-Jun-20
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Abstract

One of the advantages of a portable computing system (laptop computers are the easiest example) is the ability to take your work with you. One of the concerns about this, however, is the security of the system. Since it is typical of users to keep private, personal information as well as company confidential information in various directories on the laptop, there are concerns about security for each type of file when the laptop is at different physical locations. In other words, when the laptop is open and active on your desk at work, people should not be able to access your personal financial spreadsheets. And when your laptop is at home, you are under obligations to prevent non-company members in the household from viewing your company's confidential information.

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  Method to automatically lock/encrypt files or directories on a mobile computing system based on domain references

One of the advantages of a portable computing system (laptop computers are the easiest example) is the ability to take your work with you. One of the concerns about this, however, is the security of the system. Since it is typical of users to keep private, personal information as well as company confidential information in various directories on the laptop, there are concerns about security for each type of file when the laptop is at different physical locations. In other words, when the laptop is open and active on your desk at work, people should not be able to access your personal financial spreadsheets. And when your laptop is at home, you are under obligations to prevent non-company members in the household from viewing your company's confidential information.

Our proposed disclosure is a method by which files or directories are automatically locked or encrypted based on your domain name. One of the common features of laptops and ethernet-based LANs is that they allow dynamic ethernet network configuration. When you hook your computer up to the network, you will have configured your computer to actively ask for the next free, TEMPORARY ethernet address. Thus, you can connect on any LAN as long as there are free addresses to use and you don't mind connecting each time as a temporary network entity. However, each time you connect, the machine's temporary IP address has a firm domain name associated with that address (although the actual IP name will most likely vary). The key to this...