Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 | 3 | 4 
2423 posts

Uber Geek
+1 received by user: 142


  Reply # 836095 12-Jun-2013 23:05
Send private message

Now's a good time to start using PGP/OTR and any other encrypted communications as well as getting other people to use them.. (Skype doesn't count!)



1332 posts

Uber Geek
+1 received by user: 152
Inactive user


  Reply # 836330 13-Jun-2013 14:08
Send private message

Ha! Skype is not secure at all.

Any communication I need to care about is already adequately secured and any logs are stored on encrypted drives at both ends.

 
 
 
 


Try Wrike: fast, easy, and efficient project collaboration software
2423 posts

Uber Geek
+1 received by user: 142


  Reply # 836603 13-Jun-2013 23:11
Send private message

1080p: Ha! Skype is not secure at all.

Any communication I need to care about is already adequately secured and any logs are stored on encrypted drives at both ends.


For proof skype isn't secure, see http://lists.randombit.net/pipermail/cryptography/2013-May/004224.html

4329 posts

Uber Geek
+1 received by user: 1856

Trusted
Subscriber

  Reply # 836641 14-Jun-2013 07:03
Send private message

kyhwana2:
1080p: Ha! Skype is not secure at all.

Any communication I need to care about is already adequately secured and any logs are stored on encrypted drives at both ends.


For proof skype isn't secure, see http://lists.randombit.net/pipermail/cryptography/2013-May/004224.html


Even if it were there are a lot of things you can do with analysis of the encrypted stream. VoIP systems conserve bandwidth by only transmitting packet data when there is audio to be sent, and by using variable bit rates to encode the audio that must be transmitted. At a high level, this means you can tell who's talking on either end of the conversation by watching who is transmitting.

But even better than that, speech has an audio fingerprint. Each word, or phrase, has a unique pattern of amplitude that translates directly into a variable bitrate. That bitrate variation is preserved by encryption.

These guys, even in 2010, were able to identify the speech in an encrypted VoIP stream with at least 50% and in some cases 90% accuracy. If they were publicly announcing that result in 2010, imagine what the NSA with could do in 2013 with a couple of football fields worth of supercomputer.

So... if you are using VoIP, you may be able to be spied upon by a sufficiently tooled up eavesdropper even with perfect ciphering. 

Having said that you can counteract this technique by using a fixed-rate codec like G.711 which transmits constant 64kbps audio even during silence. Or perhaps you can go ahead and create a new codec which adds random padding to variable bitrate speech compression to smear it out whilst still saving some bandwidth compared to fixed rate.




iPad Air + iPhone SE + 2degrees 4tw!

These comments are my own and do not represent the opinions of 2degrees.


4329 posts

Uber Geek
+1 received by user: 1856

Trusted
Subscriber

  Reply # 844064 25-Jun-2013 15:21
Send private message

Anyone else written to their MP and/or other parliamentarian about their objections? I emailed my local MP (National Party) about the interception bill, pointing him to Tech Liberty's submission. He emailed back to say that the changes were 'technical ones as all the powers contained in the legislation are currently available'. I pointed out several that were not, but have not had a reply.

I also emailed Winston Peters this morning after reading he's not quite convinced to vote for it yet, urging him not to, until there are better safeguards.




iPad Air + iPhone SE + 2degrees 4tw!

These comments are my own and do not represent the opinions of 2degrees.


2423 posts

Uber Geek
+1 received by user: 142


  Reply # 845211 25-Jun-2013 19:43
Send private message

My MP is a National MP that ended up voting against a few more liberal things, so I havn't wasted my time writing him.

1 | 2 | 3 | 4 
View this topic in a long page with up to 500 replies per page Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Lightbox updates platform with new streaming options
Posted 17-May-2018 13:09


Norton Core router launches with high-performance, IoT security in New Zealand
Posted 16-May-2018 02:00


D-Link ANZ launches new 4G LTE Dual SIM M2M VPN Router
Posted 15-May-2018 19:30


New Panasonic LUMIX FT7 ideal for outdoor: waterproof, dustproof
Posted 15-May-2018 19:17


Ryanair Goes All-In on AWS
Posted 15-May-2018 19:14


Te Papa and EQC Minecraft Mod shakes up earthquake education
Posted 15-May-2018 19:12


Framing Facebook: It’s not about technology
Posted 14-May-2018 16:02


Vocus works with NZ Police and telcos to stop scam calls
Posted 12-May-2018 11:12


Vista Group signs Aeon Entertainment, largest cinema chain in Japan
Posted 11-May-2018 21:41


New Privacy Trust Mark certifies privacy and customer control
Posted 10-May-2018 14:16


New app FIXR connects vehicle owners to top Mechanics at best prices
Posted 10-May-2018 14:13


Nutanix Beam gives enterprises control of the cloud
Posted 10-May-2018 14:09


D-Link ANZ launches Covr Seamless Wi-Fi System
Posted 10-May-2018 14:06


Telstra, Intel and Ericsson demonstrate a 5G future for esports
Posted 10-May-2018 13:59


Spark introduces Android One with Nokia 7 plus and Nokia 6.1
Posted 8-May-2018 05:00



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.