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Title: Why Bush's NSA Wire tapping is defeated by VoIP Networks
Source: [None]
URL Source: http://video.google.com/videoplay?d ... 8493098426180726284&pr=goog-sl
Published: Oct 23, 2006
Author: ???
Post Date: 2006-10-23 00:09:06 by Neil McIver
Keywords: None
Views: 332
Comments: 17

http://video.google.com/videoplay?docid=-8493098426180726284&pr=goog-sl

Good listen. About 13 minutes long.

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Begin Trace Mode for Comment # 7.

#2. To: Neil McIver, Tauzero, Jethro Tull, lodwick, christine, Esso, angle, bluegrass, Eoghan, Mekons4, BTP Holdings, SKYDRIFTER, Dakmar, Horse, Max, ladybug, mirage, randge, bluedogtxn, Red Jones, RickyJ, loner (#0)

Great explanation of VoIP.

robin  posted on  2006-10-23   1:20:12 ET  Reply   Untrace   Trace   Private Reply  


#3. To: robin (#2)

The Titanic was supposed to be unsinkable too. IMHO there is no level of encryption that can't be cracked given enough time and desire. Right now I would say this type of communication would be very secure, but to think it will always stay secure would be foolish.

RickyJ  posted on  2006-10-23   1:51:01 ET  Reply   Untrace   Trace   Private Reply  


#5. To: RickyJ (#3)

True, but... the more people who routinely encrypt their communications, the more likely they won't bother trying to decrypt any particular one.

There's always the possibility that the gov procured some mega power computer that they would be willing to have run for days/weeks/months just to crack one particular encryption. It's also possible they got hold of some mathematician was able to invent/discover a way of cracking codes with a simple algorythm, which would be an "I found the holy grail" achievement. If you can easily find the only 2 very, very large prime numbers, which when multiplied together get a much bigger number, without doing lots of trial and error divisions, then that would be you.

Probably the biggest potential vunerability though is a computer or phone that's been hacked with some kind of spyware. Encryption wouldn't mean squat then.

Neil McIver  posted on  2006-10-23   2:58:59 ET  Reply   Untrace   Trace   Private Reply  


#7. To: Neil McIver, RickyJ, mirage, bluedogtxn (#5) (Edited)

http://www.schneier.com/blog/archives/2006/04/voip_encryption.html

The article from Wired at this link says the endpoints are still at risk, but they could also be made more secure with firewalls.

http://arstechnica.com/news.ars/post/20060407-6552.html

This link refers to Schneir's article.

The temporal encryption schemes are the best. That's what we used in a video conferencing project. The infrequent 'I' frames are a total refresh, but the intermediate frames are not. As the video progresses, the encryption key changes over time; what you may lose in efficiency you gain in security. Always tradeoffs.

Here's a handy glossary of wifi terms:

http://www.webopedia.com/DidYouKnow/Computer_Science/2005/Wireless_Acronyms.asp

robin  posted on  2006-10-23   10:04:31 ET  Reply   Untrace   Trace   Private Reply  


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