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Submission + - Details of iOS and Android Device Encryption

swillden writes: There's been a lot of discussion of what, exactly, is meant by the Apple announcement about iOS8 device encryption, and the subsequent announcement by Google that Android L will enable encryption by default. Two security researchers tackled these questions in blog posts:

Matthew Green tackled iOS encryption, concluding that at bottom the change really boils down to applying the existing iOS encryption methods to more data. He also reviews the iOS approach, which uses Apple's "Secure Enclave" chip as the basis for the encryption and guesses at how it is that Apple can say it's unable to decrypt the devices. He concludes, with some clarification from a commenter, that Apple really can't (unless you use a weak password which can be brute-forced, and even then it's hard).

Nikolay Elenkov looks into the preview release of Android "L". He finds that not only has Google turned encryption on by default, but appears to have incorporated hardware-based security as well, to make it impossible (or at least much more difficult) to perform brute force password searches off-device.

Comment Why not? (Score 1) 137

The answer, of course, is "money". People will go see this. Or if they don't, it's because they did a bad job of following the formulas. The summer blockbuster formula has worked out pretty well. People like watching stuff blow up, even if they could have predicted what would blow up and what it would look like before they paid $13 for a ticket.

Battleship took in $300,000,000. It cost $200,000,000 to make. That's "why". People recognized the name, and hoped to combine their love of stuff blowing up with their fond memories of a game they used to play. They get a little charge out of the connections. It's worth $13 and two hours of their time.

I could see this doing equally well. I can't say if it's the best use of the studio's quarter-billion-dollar investment, though it should be a reasonable one. It's more likely than some unknown script, which even if people really like it stands a very small chance of making more than $300 million without the extra name recognition.

I probably won't be seeing it. Maybe I will; I saw the Lego movie, and it was pretty good (though I paid no more than my Netflix monthly subscription fee for it). I'd rather see them spend their money on something with a bit more merit, but that's just me.

Comment Re:Chromecast (Score 1) 106

I'm not sure you can save anything with a dumb TV any more. These features are so cheap that they're being replicated by a $25 stick. Adding at least basic "smart" features is kind of a no-brainer for the manufacturer.

Too bad they suck at it. At least, in my experience: the built-in version of Netflix on my TV is so bad that I bought a Roku. It's a few years old, and maybe they've improved it since then, but on mine it's slow and awkward. Perhaps in the future they'll just spend $25 and wire in one of these things.

Comment Re:No he didn't (Score 1) 217

Now they've gone back to trying to just blow the plane up. It's not impossible to get explosives past security, but they've resorted to complex ways to hide them, and they seem to suck at it. They get derogatory names like the Shoe Bomber and the Underwear Bomber because they failed.

Their incompetence suggests that they were individuals rather than concerted efforts, as the 9/11 hijackers were. Those were coordinated attacks on multiple targets, and a fair bit of effort was put into training them. It's certainly clear that they won't be able to get control of the cockpit any more, even if they threaten to kill the passengers.

That change alone probably accounts for the lack of hijackings, though having to risk passing through even theater security also means the chance of capture, and thus potentially turning into an intelligence bonanza. So the core of al Qaeda seems to have given up, and instead of unaffiliated nuts going to Cuba we get unaffiliated nuts trying to blow things up.

Comment Re:Fox News? (Score 1) 460

There is a lot of abysmal news reporting, and I encourage people to stop getting their science news from any source that wants to use it to entice you to come every single day. If the lack something exciting (which is most days), they'll exaggerate something that they hope will keep you coming back.

Fox News adds a layer of ideology onto that which makes it even worse. They go past exaggeration and attention-whoring to outright lies and distortions, on a regular and consistent basis. Most of the hyerbole in regular science reporting has little effect one way or the other, except to skew people's perception of science as either more exciting than it really is or disillusionment when supposed breakthroughs never turn into products. But Fox News lies in a way designed to produce a specific political end, in a way that has made serious consideration of certain topics nearly impossible.

I don't like any of their competitors, either, and recommend everybody shut all of them off in favor of more thoughtful (and less frequent) news sources, especially for science. They're not the only ones with a political agenda, for that matter. But I've got an extra vituperation for the network most obviously distorting science news in a form that goes past breathless exaggeration into outright lies.

Comment Re:Use the bug to patch the bug (Score 1) 236

A) It should only update bash

B) Also run yum -y update bash

C) This has been discussed for years, and the general consensous has always been it's better to not patch their systems (allthough I disagree with that. If you left your system open, you're just asking for somebody else to patch it for you, IMHO)

Comment Re:Oh good (Score 2) 907

I applaud your approach, but I did want to point out that a good $300 car is difficult to find (not to mention that $300 in the 1990s is about $600 today, after inflation, and minimum wage hasn't risen to match). A car in that price range is often going to be unreliable, and a single repair on something significant (transmission, engine, etc) is going to cost as much as the car. Even a new set of tires can be a significant cost burden.

If you're capable of doing your own maintenance, that can bring costs down a lot. Maintenance costs have fallen as cars have gotten more reliable, but significant repairs are getting harder. Worse, most consumers aren't in a position to evaluate which sub-$1k cars are actually worth the price, and which need thousands of dollars in repairs to be driveable. If you don't have that expertise, you need to hire somebody, at still more cost.

Which is to say: being poor is expensive. There are definitely ways to economize, and some people are bad at that. But even those who do live economically require a certain amount of luck to scrape by at the lowest income levels. Reversals, including a $300 car that turned out to be a poor bargain, can easily tip the balance for even the wise consumers.

Comment Re:Not intended, result of market crash in 2008. (Score 1) 261

With the economy overall recovering since then, one would expect CO2 levels to go back to rising. It's interesting that they haven't.

I can take a guess at factors: continued outsourcing of manufacturing to China, increasing prevalence of low-energy home appliances, more fuel-efficient cars, a shift to natural gas, the misleading nature of many economic figures, reduce consumerism in the middle class. There are certainly more factors. I'd be curious to know which is responsible, and how much.

Comment It proves the conspiracy theorists right (sort of) (Score 4, Insightful) 275

To me, the real lede is buried pretty deeply in the article. The light on that particular photo IS anomalous. It sounds as if the conspiracy theorists were right about that, and that's kind of astute.

What's interesting is the resolution of the anomaly: it's light reflected off Neil Armstrong himself. Or rather, his large, bright-white suit. The NVidia guys showed that it reflects enough light to account for the lighting in the picture. If you don't include it, the lighting is off. I think that's pretty cool.

This doesn't, of course, settle anything for the conspiracy nuts, and I fully expect this to prove only that the NASA guys were wily bastards. And that sucks, because it sounds as if the brain power they're applying might well have turned up something more interesting if it weren't fixated on achieving a delusional result.

Comment Re:I went (Score 1) 200

Thank you for caring. Seriously.

I've made my peace with future generations about my apathy. In part that's because I have no children, and don't want them; in fact, a (tiny) part of the reason I have none is that I don't want the burden of the fact that I don't believe I can contribute to a fix to this problem.

I am sorry, future generations, but the enemy was too big to move. Most of the world understood, but crucial people in crucial positions were happy to leave you a worse world, and let you deal with it. They found an awful lot of common cause with a large group of self-centered, gullible people who were easily led to believe anything that meant that they could live any way they wanted with no repercussions. No reasoning could dislodge them from that, and emotional appeals were met with contempt. It was clear that I couldn't win, and that by the time it became obvious that something had to be done, it would be much too late. It is, I suspect, already too late.

I really appreciate that you're not taking the coward's way out, as I am. Maybe you can do something I should be doing. But I simply can't justify anything but apathy. I've tried.

Comment Re:The review ecosystem is good and truly broken.. (Score 1) 249

I completely agree... and yet there is one prominent counterexample: Wikipedia. When Wikipedia came out I was absolutely certain it would not work. And yet, somehow, it does. There are trolls, and controversial pages have to be locked down, but overall the site does astonishingly well. It's the go-to source for general information on the Internet, at least as good (and in many ways better) than expensive curated sources.

I don't completely understand what it is that makes Wikipedia work. I'm sure it's a lot of things, and at least some of the things also contribute to dysfunction (like deletionist moderators). I don't know if that can be adapted to review sites, which are at core about opinion, while Wikipedia's guiding principle of objectivity gives it a touchstone that all non-trolls more or less agree on.

The trolls don't, of course, but somehow the fact that the non-trolls outnumber the trolls makes them relatively easy to spot and manage, though there are still problems. Especially in out-of-the-way places, which is the other difficulty with review: most places will get relatively few reviews and won't have millions of eyeballs on the lookout for trolling.

Still... the reason I brought this up is that somehow, Wikipedia works, and I would have sworn it wouldn't. So maybe, just maybe, there's some hope for review sites as collaborations. It won't be as simple as reverting the many different kinds of bad reviews (from outright trolling to "I hate spicy food so you shouldn't go to this Mexican restaurant"), but I'm uncharacteristically optimistic that there might be a route forward. (I'm certain, though, that Yelp hasn't found it.)

Comment Re:When doing anything involving the ocean (Score 1) 198

Yep. Still sufficient reason to reduce the amount of plastic that gets into the oceans, but unfortunately, it seems really hard to get people to take any positive environmental steps unless you exaggerate it into ugly, apocalyptic terms. And even then, for every person you convince by it, there will be one who heard that it was exaggerated and concluded that therefore nothing needs to be done at all.

Comment Re:And the speculation was completely off (Score 1) 188

I didn't follow the speculation, but perhaps you'd know: did they realize that splitting was an option? Did Boeing and SpaceX each get half a loaf, or did NASA somehow manage to "grow the pie"?

If so, where will they dig up additional billions in funding? If not, will either SpaceX or Boeing be able to accomplish a large fraction of the work for a fraction of the funding they'd hoped to get?

I'm ecstatic to see them say "Why not both?", since if the government is going to be spending tax dollars, I'd rather see it go to a good scientific cause than... well, to a lot of other things that the government is prone to spending money on. But It's a fair bit of money, even in government terms, and I hope it's being spent wisely rather than having a Solomonic decision that gives us two halves of a baby.

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