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Comment: Utility (Score 1) 365

by daveschroeder (#43684789) Attached to: Biometric Database Plans Hidden In Immigration Bill

It turns out that having a universal unique idenitifier is really handy. There are reasons you WANT to be able to be affirmatively and uniquely identified as "you", but you want that capability under your own control. Even with PKI (a system that could be trusted, anyway), someone has to hold a central database. Guess who that would likely be? And if it shouldn't be "the government", then who?

Comment: Re:That's not at all the point (Score 2, Informative) 496

by daveschroeder (#43680097) Attached to: DoD Descends On DEFCAD

Yes, it is about "controlling firearm dissemination"...for EXPORT. That's why the State Department Office of Defense Trade Controls Compliance is involved. If you've already made up your mind that the true motive relates somehow to American citizens in a country with as many privately owned firearms as people, no amount of logic or reason will change your mind.

Comment: That's not at all the point (Score 4, Informative) 496

by daveschroeder (#43679337) Attached to: DoD Descends On DEFCAD

The point isn't that DOD thinks the files are going to disappear, and it doesn't matter anyway since the purpose isn't to "disarm Americans" or "keep the files out of the hands of Americans" or some other utter garbage.

There are treaties and various arms control export restrictions (ITAR) at stake, and US-based corporations or entities cannot provide arms in violation of these constructs. If this sort of thing is on the Pirate Bay or elsewhere, DOD trade control doesn't care.

Comment: Re:Sounds impractical (Score 3, Interesting) 130

by SLi (#43612741) Attached to: IBM Researchers Open Source Homomorphic Crypto Library

The summary doesn't really explain this that well... the benefits here (if I'm reading this correctly) are that someone with a HUGE block of ciphertext and the encryption key can modify slices in situ without having to decrypt the large block and re-encrypt. They can just swap out the old data for the new, based on the index.

This begins to have significant benefits when applied to hosted computing (called Cloud Computing this decade), where, say, all your email is stored encrypted, as is the email index, and you just want to add/remove something without decrypting the entire blob. It also means that cloud hashing becomes significantly easier, as does filesystem-level encryption (since we no longer need to depend on block ciphers, but can use a homomorphic stream cipher and then chop it up after the fact).

Err, no, you are actually reading it completely wrong.

The point is actually that you can give encrypted data, say, some of your company's vital statistics, to an outsider (for example, a consulting agency); that agency can do a computation on that encrypted data (say, their super-secret algorithm that analyzes your company and tells you how to get rich fast) and get an encrypted result, which it then gives back to you. Only you can then decrypt the result.

You get to keep your data secret, and the company doing the computation gets to keep the function they compute secret; the only thing revealed to you is the function applied to your data, and nothing is revealed to the consulting agency.

The big stumbling block to this point has been that the speed gains achieved by homomorphism have been offset by the overhead in implementing the homomorphic algorithms in the first place -- meaning that it's faster to decrypt, modify, re-encrypt.

Homomorphic encryption most certainly is not about speed gains.

Comment: Re:Last Sentence (Score 1) 322

by SLi (#43545949) Attached to: Federal Magistrate Rules That Fifth Amendment Applies To Encryption Keys

I suspect that it work just like a warrant. When the cops get a warrant for searching a property, it's scoped to specific evidence. If they find something which is out of scope, they can't collect it as evidence.

No. If they stumble on something which is out of scope without specifically looking for it, it can be used. Google for "plain view doctrine".

Comment: Re:Some other relevant stories (Score 2) 270

by daveschroeder (#43525253) Attached to: Crowdsourcing Failed In Boston Bombing Aftermath

Yes, and just like eyewitnesses to an accident, it's shown that such "points of view" are often wrong or misinterpreted.

Just one example of many: the statements by people near the Pentagon on 9/11 that it "sounded like a missile". How many of those people have actually ever even *heard* what a commercial jetliner sounds like traveling at nearly cruising speed just hundreds to dozens of feet off the ground "sounds like", much less a missile? This is then used as "proof" that it couldn't have been a plane, and probably was a "missile", despite all evidence to the contrary (including numerous statements from people saying they clearly saw the plane, sometimes in the same sentence as the cherry-picked quotes where they say it "sounded like a missile").

This is why we have professionally trained (usually) journalists and experts, because they do the filtering and analysis for us. I'm sorry, but NO individual is capable, his or her self, of becoming an authority on everything related to every major event that occurs with the end result being better analysis than what has already been done by investigators and task forces of experts. Sure, have a questioning mind and all that, but don't assume everyone in the "media" or the "government" is always lying to you, and random, out-of-context, and/or misinterpreted (or outright wrong) assertions by "citizen journalists" (or anyone else) are gospel.

Comment: Re:crowsourcing did NOT fail - here's why (Score 1) 270

by daveschroeder (#43524499) Attached to: Crowdsourcing Failed In Boston Bombing Aftermath

You're acting as if information was "withheld"...it wasn't. There is no mechanism to release every single piece of evidence collected by every agency to the internet and "crowdsource" it.

What was "crowdsourced" was information that was already on the internet. Furthermore, the FBI did, in fact, release the relevant snippets of video and pictures from the private security cameras and other sources.

Sorry, but "crowdsourcing" is not always the answer, and this was not a success, much less a rousing one.

Comment: Some other relevant stories (Score 5, Informative) 270

by daveschroeder (#43524413) Attached to: Crowdsourcing Failed In Boston Bombing Aftermath

This has been a fascinating phenomenon, and it's only going to evolve more as time goes on.

Crowdsourcing or witch hunt? Reddit, 4chan users try to ID Boston bomb suspects

Boston bombing: How internet detectives got it very wrong

'I didn't do anything!' High school track runner forced to deny involvement in Boston Marathon bombings after a picture of him and his coach is widely circulated

Social media as breaking-news feed: Worse information, faster

Worse information, faster -- this neatly sums it up, and I'm a huge proponent of social media and its benefits, including to government.

And for the record, no, the FBI wasn't seeking to "censor" anyone, and the "next logical step" (as I have seen asserted elsewhere) won't be to "shut down" internet or social media resources during major public emergencies; however, law enforcement agencies absolutely can request, once they have identified suspects via investigative and legal processes, that people focus on those instead of playing CSI: Internet.

Sadly, the echo chamber of the internet enables some people, in seemingly increasing numbers, to go a step further and choose to believe everything is automatically a "false flag" conspiracy with the stated perpetrators "framed"â¦..

The "wisdom of crowds" can be a misnomer.

"See - the thing is - I'm an absolutist. I mean, kind of ... in a way ..."

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