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Comment Re:Information Security Puffery (Score 1) 353

In fact, during the same time period a guy named Craig Gentry solved a major open crypto problem --- namely, how to compute on encrypted data --- and it got a fraction of the press coverage.

This was nothing fundamentally new; google "secure multiparty computation." Or, FTFA, Gentry's technique requires a "trillion times" more computational power than existing techniques.

Not that I think his work wasn't awesome-- I've already queued the paper in my reading list. All I'm claiming is that he didn't "solve a major open problem".

Math

Which Math For Programmers? 466

An anonymous reader writes "It is no news that the greatest computer scientists and programmers are/were mathematicians. As a kid 'hacking' if-else programs, I was not aware of the importance of math in programming, but few years later, when I read Engines of Logic by Martin Davis I started becoming increasingly more convinced of this. Unfortunately, math doesn't return my love, and prefers me to struggle with it. Now, as the end of the semester approaches, I am faced with a dilemma: What math subject to choose next? I have two choices: 'Discreet structures with graph theory' (discrete math; proofs, sets, algorithms and graphs) on one side, and 'Selected math chapters' (math analysis; vectors, euclidean space, differentials) on the other. I'm scared of the second one because it's said to be harder. But contrary to my own opinion, one assistant told me that it would be more useful for a programmer compared to the first subject. Then again, he's not a programmer. That's why I turn to you for help, fellow slashdotters — any advice?"

Comment Why has nobody suggested UDF? (Score 1) 484

FAT32: no POSIX metadata, 4GB file size limit is deadly. It's inefficient, and generally outdated and nasty.

NTFS: proprietary, sometimes complicated to get on Linux, hard to get on OSX.

ext*: bad-to-none support on non-Linux. IIRC, neither the Windows nor OSX drivers support journaling, for example.

HFS+: about the same boat as ext*, if you swap "Linux" and "OSX".

UDF: reasonably efficient, support for basic metadata (POSIX, though no EAs or forks), full support on Linux 2.6, OSX 10.5, Windows Vista/7, or (with third-party utils)

Comment Re:Another reason not to go Verizon! (Score 2, Interesting) 510

argue my way up the manager food chain

What you fail to understand is that the customer-accessible part of the manager food chain in the vast majority of companies is approximately two people tall: CSR and supervisor. (Depending on the company and nature of question, you may be able to get to tier2 support; hence the "approximately".)

You will have better luck...

  • Just calling back. Virgin Mobile's policies used to differ depending on which call center your call got routed to, but even in less extreme cases, some reps are nicer than others.
  • Turboing. In particular, some companies have started to have "Executive Support" hotlines (Sprint comes to mind.) Save these for a last resort. GetHuman is also useful.
  • Moving horizontally. Try web order support, activations, billing, customer service, terminations, etc.
  • Being nice instead of nasty.
  • Writing. Yes, seriously. I've resolved many issues just by sending the entity in question a nastygram. People still take snail-mail seriously.

Comment Re:Do you hear me now?? (Score 1) 510

Let me elaborate a bit on a previous comment.

T-Mobile's ETF is $200. They can't offer you a subsidy of significantly more than $200, because then it would be to your advantage to buy a phone, cancel your contract, and sell the phone for a profit. Contract lengths are two years. Amortized over 2 years, by taking the subsidy, you save $8._33. Meanwhile, T-Mobile's has two tiers of plans. One gives you the subsidy, has a contract, and is $10 more a month. Thus: if you have the money up-front, buy your phone, save $240 in the cost of a plan over two years, and save yourself from a contract.

Consider the Motorola Cliq. As a user, it's a good phone.

Comment Re:Remember Martin Niemoller (Score 1) 630

> Lol. Yeah, I know, those poor pedophiles and terrorists
> (both of which by definition imply a law being broken)
> are so tormented.

"Pedophile" does not imply that a law has been broken. It is not illegal to be a pedophile, it is illegal to engage in a sexual encounter with a minor. You can fantasise about it all you want.

As far as "terrorist" goes, that is one of the most vague and poorly-defined terms in America. People _are_ getting oppressed by having those terms placed on them and then not having any politician dare take a stand for fear of being ostracised.

> They should be "exterminated".

What, so, you should be killed for your own private thoughts? That's a little harsh, isn't it?

Comment Re:Constitutionality (Score 2, Interesting) 630

Right, then.

> That's that other part of the Constitution, you remember the
> one about double jeopardy. If someone got convicted and sentenced
> for lewd behavior, they can't increase the sentence afterward even
> if they discover that the person may have committed several
> rapes 15 years prior.

Are you bloody serious? Do us all a favour and look up terms before using them. Double jeapordy refers to being tried on the _same charge_ more than once. If you rape someone fifteen years ago and then get charged on some unrelated crime, you can still be charged on the original rape. They were never part of the sentence.

> So then the person goes free with little more than a slap on the wrist
> and the public feels they were let down by the Constitution and
> the system in general.

This is a much more nebulous statement, but I will dignify it by pointing out that if "the public feels let down by the constitution", that's no reason to break it, that's, at best, a reason to change it.

> This is why we have vigilante justice and people thinking like the GP,
> and for good reason. Sorry, I know the founding fathers meant well but
> the Constitution doesn't protect us from the real world as it is today.

That's not a reason to ignore it, that's a reason to fix it.

> Currently it serves to protect a criminally insane President and tons of
> his cronies but does nothing to protect us from the government itself
> so long as we continue to think that little piece of paper in D.C. is our
> savior.

Actually, the constitution doesn't protect this "criminally insane President". If anything, it limits his power. Tons of laws passed while he was in office do serve to protect him, but they are unrelated to the constitution and, in some cases, arguably directly infringing on it. And yes, I would like to think of "that little piece of paper in D.C" as my saviour. Or, more accurately, honest judges intelligently interpreting it.

Comment Re:Constitutionality (Score 4, Insightful) 630

I have to say, you missed the grandfather's point completely. I personally agree that comparing rapists and Jews is stretching it more than somewhat (I am ethnically Jewish, for the record, not that that's especially relevant) but that's all it is -- a bit stretching it. His point was that this is still unconstitutional and a slippery slope. Just because something is democratically decided doesn't make it constitutional. This is, IMHO (and IANAL, etc.) a clear violation of fourth amendment privacy rights, and a dangerous one at that.

What's really quite disturbing about all this is that it hardly stops the problem. Think about it -- what are some of the most "questionable" places on the Internet? IRC and 4chan come to mind as the top examples, and neither require passwords (for the most part). Besides, how are you supposed to know _which_ passwords to hand over? The court won't know about that password you set on your handle on Freenode and they're likely not going to know what to do with it if they had it ("There's no form! Oh noes!"). If these people still pose danger to society, then you should imprison them. All this will accomplish is give the government an easier way of oppressing people.

In a truly free country, all have to be protected, even child molesters (note, by the way, that the main discussion concerns "sex offenders" which is hardly the same thing). The problem is that we have a representative democracy and so the senator that's going to stand up for them is going to get his carreer ruined. With something as delicate as this, it might just be some guy who looked a girl the wrong way.

Comment Re:Rouge students and some more insight (Score 1) 300

but they haven't even bothered to make sure that only leaf certificates can be issued.

Nope; the CA only signed a what you call a leaf certificate, but the constraint which determines whether a key can is a branch ("CA = true") or leaf ("CA = false") was part of the cert that they were able to change. See the last paragraph of section 5.1

Wireless Networking

Submission + - Has city-wide Wi-Fi already been achieved?

hahafaha writes: "There have been many announcements about plans to institute city-wide, free Wi-Fi. Most of these planned endeavours have failed. However, it seems to me that with the increasing amount of Wi-Fi offered in businesses, as well as the multitudes of unsecured networks in private residences, city-wide Wi-Fi has inadvertently already been achieved. In most densely populated cities, it is possible to find Wi-Fi almost anywhere. If you move into an apartment building, getting your own Internet access is rarely necessary, because there are dozens unsecured ones all around you. Is it possible that city-wide Wi-Fi is here already?"

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