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Communications

+ - Robust Surface Navigation could replace GPS

Submitted by
GadgetMike
GadgetMike writes "The Global Positioning System is the only navigation system operational at the time speaking and the world depends on it. The event of something happening to the system could really cause chaos. That's why the United States are trying to develop some alternative technologies which should be unable to fulfill the GPS's tasks in case the last one is unusable. One of them is called the RSN (Robust Surface Navigation) project, developed by the joint forces of some major companies under the lead of the giant Boeing. Link: http://www.gadgetroad.com/design/robust-surface-na vigation-could-be-an-alternative-to-gps/2007/04/20 /"
Privacy

+ - Clean slate Internet projects mean end to privacy?

Submitted by srijon
srijon (1091345) writes "this article by Steve Watson observes that recently discussed clean slate Internet projects pay scant regard to privacy. From the article:

In tandem with broad data retention legislation currently being introduced worldwide, such "clean slate" projects may represent a considerable threat to the freedom of the internet as we know it. EU directives and US proposals for data retention may mean that any normal website or blog would have to fall into line with such new rules and suddenly total web regulation would become a reality.
Though the article lacks any "smoking gun", it provides a good summary of existing efforts to clamp down on the net. Certainly Standford's clean slate white paper is alarming because it pays scant regard to privacy, stating only that the new internet should "support anonymity where prudent, and accountability where necessary.""

Comment: Re:First question: (Score 2, Insightful) 458

by DrAegoon (#15557334) Attached to: A New Technique to Quickly Erase Hard Drives
The one time pad idea has merit, but there are a number of problems with it. First, there is the logistical nightmare any one time pad system causes. Since each pad can only be used once a new key must be produced for every hard drive on every mission. Securely distributing all these keys brings up the same problems as protecting the data itself.

These problems can be addressed, but a one time pad cannot prevent the problem in the article since it only works for data produced while in flight. It is far more likely that highly classified data is being carried on a plane like this because it is neccessary to complete the mission. In order to access the data you would need to take the key with you and then you're back to square one because the drive containing the key still has to be destroyed in an emergency.

Finally, since the data is so important to the mission, it needs to be stored on media that is resistant to accidental modification. The device described in the article is meant to address the conflict between the robustness needed to survive a mission and the volatility needed to destroy the data in an emergency. This problem also applies to any in-flight encryption technique where a key is needed to read the data. Even if the key is not stored on a hard drive it has to be stored on something that is resistant to accidental loss.

The product sounds ridiculous because no one outside of government is trying to protect their data from an adversary with effectively unlimited resources. The military doesn't have the luxury of assuming their adversary won't take an electron microscope to the drive to recover overwritten data or determine which bits have been switched from their previous state. That's the kind of threat the technique in the article is meant to address.

Competence, like truth, beauty, and contact lenses, is in the eye of the beholder. -- Dr. Laurence J. Peter

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