Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment Re:Bubbles in Bloodstream is Dangerous (Score 4, Interesting) 15

You get the bends from high levels of nitrogen dissolved in blood plasma under pressure. If you move to low pressure regions near the water's surface too fast, the nitrogen is able to separate out into bubbles that get stuck in tissues and blood vessels.

These things are "round" like gas bubbles, but they're more like some sort of fake dummy cells, with a fluid interior surrounded by something that looks like a lipid bilayer made of soap-like molecules that bind together by van der Waals forces and have charged tips that interface with the surrounding water. There is no gas.

It's a badly written article- "oooh bubbles!" People should try not to write stupid shit like this, especially about vaccines. I'm already blue in the face screaming at thick skulled idiots on #CDCwhistleblowers who post crap about how vaccines cause autism because Big Pharma stuffs them with disgusting crap like dihydrogen monoxide.

Comment Re:Government Intervention (Score 2) 495

We had plenty of choices for dial-up too, what we lacked particularly in the UK was free local calls, that made modem calls expensive compared to the US. Since then everything has been going our way.

However, the issue of free vs metered local calls hasn't been relevant for a long time. I don't think government intervention is a great explanation either, given that the UK telecoms network was privatised.

For large parts of Europe I think there's a simpler explanation - a combination of population density and more regional competition with ISPs. Whereas in the USA you have a handful of nationwide ISPs. There's no equivalent of Verizon or Comcast in Europe that serves the entire continent.

Comment Re:Still not good enough. (Score 5, Funny) 430

If you vote for people who promise to fight for your "freedom" by blocking "burdensome government regulations" that might someday prevent you from throttling off your customers once you form that telecommunications monopoly you've been dreaming of ever since your mom sent you to school wearing bread bags on your feet, then yeah, it is your fault.

Comment Re:Security is a process ... (Score 3) 46

There will -always- be flaws. However, part of a company selling security is how they respond to issues, and here, BlackPhone has performed quite well. There was a problem, they fixed it, and that is what matters.

I agree that how a company handles incident response is important and the BlackPhone guys have apparently handled this well.

However, there are several things that are troubling about this story which lead me to not trust BlackPhone and question the security experience of the people designing it.

The first thing we notice about this exploit is that the library in question appears to be written in C, even though it's newly written code that is parsing complex data structures straight off the wire from people who might be attackers. What is this, 1976? These guys aren't programming smartcard chips without an OS, they're writing a text messaging app that runs on phones in which the OS is written in Java. Why the hell is the core of their secure messaging protocol written in C?

The second thing we notice is that the bug occurs due to a type confusion attack whilst parsing JSON. JSON?! Yup, SCIMP messages apparently contain binary signatures which are base 64 encoded, wrapped in JSON, and then base64 encoded again. A more bizarre or error-prone format is difficult to imagine. They manage to combine the efficiency of double-base64 encoding binary data with the tightness and simplicity of a text based format inspired by a scripting language which has, for example, only one kind of number (floating point). They get the joy of handling many different kinds of whitespace, escaping bugs, etc. And to repeat, they are parsing this mess of unneeded complexity .... in C.

Compare this to TextSecure, an app that does the same thing as the BlackPhone SMS app. TextSecure is written by Moxie Marlinspike, a man who Knows What He Is Doing(tm). TextSecure uses protocol buffers, a very simple and efficient binary format with a schema language and compiler. There is minimal scope for type confusion. Moreover, the entire app is written in Java, so there is no possibility of memory management errors whilst trying to read messages crafted by an attacker. By doing things this way they eliminate entire categories of bugs in one fell swoop.

So yes, whilst the BlackPhone team should be commended for getting a patch out to their users, this whole incident just raises deep questions about their design decisions and development processes. The fact that such a bug could occur should have been mind-blowingly obvious from the moment they wrote their first line of code.

Comment Re:Good Luck! You'll Need It! (Score 2) 282

This is very true. However, WhatsApp appears to be a counter-example. They are deploying full end to end encryption and instead of ads, they just ..... charge people money, $1 per year. WhatsApp is not very big in the USA but it's huge everywhere else in the world.

The big problem is not people sharing with Facebook or Google or whoever (as you note: who cares?) but rather the last part - sharing with a foreign corporation is currently equivalent to sharing with its government, and people tend to care about the latter much more than the former. But that's a political problem. It's very hard to solve with cryptography. All the fancy science in the world won't stop a local government just passing a law that makes it illegal to use, and they all will because they all crave the power that comes with total knowledge of what citizens are doing and thinking.

Ultimately the solution must be two-pronged. Political effort to make it socially unacceptable for politicians to try and ban strong crypto. And the deployment of that crypto to create technical resistance against bending or breaking those rules.

Comment Re:Everyone back up a step... (Score 4, Insightful) 468

That's not what the second link says is happening though.

My reading of the second article is that there is the following problem. Website G2A.com allows private re-sale of game keys, whether that's to undercut the retail prices or avoid region locking or whatever is irrelevant. Carders are constantly on the lookout for ways to cash out stolen credit card numbers. Because fraudulent card purchases can be rolled back and because you have to go through ID verification to accept cards, spending them at their own shops doesn't work - craftier schemes are needed.

So what they do is go online and buy game activation keys in bulk with stolen cards. They know it will take time for the legit owners of the cards to notice and charge back the purchase. Then they go to G2A.com and sell the keys at cut-down prices to people who know they are obtaining keys from a dodgy backstreet source, either they sell for hard-to-reverse payment methods like Western Union or they just bet that nobody wants to file a complaint with PayPal saying they got ripped off trying to buy a $60 game for $5 on a forum known for piracy and unauthorised distribution.

Then what happens? Well, the game reseller gets delivered a list of card chargebacks by their banks and are told they have a limited amount of time to get the chargeback problem under control. Otherwise they will get cut off and not be able to accept credit card payments any more. The only available route to Ubisoft or whoever at this point is to revoke the stolen keys to try and kill the demand for the carded keys.

If that reading is correct then Ubisoft aren't to blame here. They can't just let this trade continue or it threatens their ability to accept legitimate card payments.

Comment Re:Why you shouldnt buy anything with revocable DR (Score 0) 468

In this case UBISOFT has a dispute with gray marketeers and decides to take it out on the customers instead of taking it to the courts

Ubisoft might not be able to take them to the courts. For example if these resellers are in China or developing countries where the local authorities don't care about foreign IP cases. Technically speaking, it's actually the customers who have a dispute with the resellers, because those resellers knowingly sold them dud keys. It's not much different than if you buy a fake branded Mac, take it to an Apple repair centre and they tell you to go away. Your dispute is not with Apple. Your dispute is with the entity that sold you the fake goods.

Look at it another way. What if these "resellers" were actually selling you random numbers instead of game activation keys. When you try them out and discover they don't work .... your dispute is not with Ubisoft. They would be totally correct to deny activation of the game. Your dispute is with the fraudster who sold you the invalid keys.

Slashdot Top Deals

What is research but a blind date with knowledge? -- Will Harvey

Working...