Skype: A Way to Avoid Eavesdroppers

The Bush administration's domestic spying program has caused concern for many about the privacy of their telephone and online conversations. However, the growing use of Skype may potentially render current eavesdropping methods outdated. Skype is an Internet calling service that provides free voice calls as well as instant messaging between users. While other online voice services are available, there is one major difference with Skype. Calls made with this program are encrypted, which makes it difficult or even impossible for access and/or snooping.

While Skype is not the first communication program to use encryption, it is by far, the easiest to use, without the extra effort required by email encryption programs such as PGP (Pretty Good Privacy). There is some question as to whether Skype's encryption is as secure as they claim, but according to security specialist Bruce Schneier, even a weakly encrypted call would deter an eavesdropper because it would force him to spend hours trying to crack it. However, Schneier also comments that eavesdropping on the calls' contents may not be as important to the NSA as tracking the calls themselves and identifying the conversation partners, which is possible with Skype.

While there are limits to the protection, Skype can at least keep the content of your conversations secure better than other available services. However, they can still keep track of who you are talking to. Overall though, I consider a step in the right direction for privacy with the increasing surveillance in our society.

Posted in Musings of a Wordsmith | delicious | digg | reddit | 402 reads

Submitted by gom jabbar on February 18, 2006 - 9:27am.

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wolfgang | February 18, 2006 - 11:26am

Your first sentence about the administration's "domestic" spying program is (at this time) false and sets the tone for the rest of your post. Unless you are making phone calls to your terrorist buddies in Pakistan, you are at no more risk for getting spied upon than you were in the Clinton and Carter administrations.

Now, about Skype. Skype is a peer-to-peer style protocol with some wrinkles. First, the wrinkle: Every Skype call first relies upon a connection to the Skype Mother Ship in the Netherlands, where various things about you are recorded. Then, your phone packets are bounced around the world in peer-to-peer fashion; your conversation may at any instant be routed through Romania, Korea, Taiwan, etc. Further, you agree to provide bandwidth to other Skype users/calls as needed by the network (this is in the EULA, I think). Skype is also tricky about violating local network policy, worming its way through firewalls and even working through natted routers. It behaves as does malware.

These, and other, reasons are why many companies and government agencies ban Skype usage. Use at your own risk. Skype can expose your computer and network to various security-related risks. So use it because it makes economic sense, but don't recommend its usage on security/privacy grounds.

Regards,
Wolfgang

gom jabbar | February 18, 2006 - 12:23pm

Well, if my first line sets the stage for the rest of my post, then your headline raises questions in regards to your ability to type/spell.

Anyway, while your information regarding Skype acting as malware may be worth looking into (which would most likely be a security issue if you are running it on a security-lax windoze box, which is not the personal case), this line "Unless you are making phone calls to your terrorist buddies in Pakistan, you are at no more risk for getting spied upon than you were in the Clinton and Carter administrations" is complete bull. FYI, there was a specific reason why the FISA court was set up in wake of the Watergate / Operation SHAMROCK scandal, and it was clearly to curb the whole violation of 4th Amendment rights that were inherent in Operation SHAMROCK. Schneier talk about the finer details here: http://www.schneier.com/blog/archives/2005/12/the_security_th_1.html

But leaving aside these issues for one moment, can you name or list a single incident where this domestic spying has resulted in a single "terrorist" arrest? How about a single "terrorist" act stopped before it happend? Can you even tell us, gentle blogger, what the specific legal definition of "terrorism" is? (Hint: Check out section 802 of the Patriot Act: It labels "terrorism" as anything that might potentially violate a law or cause life to be lost, which is inexplicably broad for any reasonable application of the law.)

9/11 wasn't stopped by all kinds of surveilence that was in place after the 1995 Oklahoma City bombing brought about anti-terror legislation, and there seems to be little reason to believe that the next terror attack will be thwarted in the future. I could also point out the fact that 95% of all Patriot Act investigations have had precisely zero to do with national security, but that would be superflueous, wouldn't it?
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Those who dream by day are cognizant of many things which escape those who dream only by night. - Edgar Allan Poe


wolfgang | February 18, 2006 - 9:24pm

Har! You're right. I'm neither a good tryper and/or a gook spellger.

Actually, I'm new to this medium and am used to running my drivel through a spelling checker before posting on USENET or a mailing list. It would be nice if the "preview comment" button also performed a quick spelling check. Mr Admin, are you listening?

The FISA Court works fine for domestic surveilance, but we're not talking about "domestic". NSA's recent program was about "foreign" surveilance, where one end of the communications happen to be within the US. FISA also can't limit the president's national security authority, granted by the Constitution. Remember "separation of powers"? Congress can't limit executive authority granted by the constitution.

I didn't realize we were talking about the Patriot Act. I'd probably agree with you that it's overly broad.

Regards,
Wolfgang

Maverick | February 18, 2006 - 1:05pm

It's great. 95% of all Patriot Act investigations have had precisely zero to do with national security, huh? Brilliant! Just BRILLIANT!


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