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Comment: Re: yep. I provide security to some ofthe listed s (Score 4, Interesting) 139

by thogard (#48682095) Attached to: 13,000 Passwords, Usernames Leaked For Major Commerce, Porn Sites

If you are going to do your own round counts, there are better ways to make it so you can't use hardware to attack your system. One trivial way with hashes is to xor the 1st byte with 0xaa on the 12th round. That alone means anyone building hardware or a GPU approach needs to take that odd step into account and that should about double the work needed by a GPU using today's techniques for optimisation. Another thing that works is to use a different table. For example MD5 uses an internal table that is something like 256*sine((0..255)/256.0). A simple swap of two bytes somewhere in the table means it is incompatible with off the shelf solutions and should be the same strength. There is a risk that doing this will cryptographically weaken the hash. For example if you use the XOR trick too early or too often in the rounds, you end up forcing bits to a known state and that makes it much weaker much like messing with S-boxes in DES does and for the same reasons. Moving around values in large tables tends to be safe as does some conditional byte manipulation in later rounds assuming you are doing more than the standard count. A great way to find out what doesn't work is write a md5 like function with 32 bits and just a few rounds. That can show lots of tweaks are very bad ideas.

Comment: Re:Probably malware (Score 1) 139

by thogard (#48682001) Attached to: 13,000 Passwords, Usernames Leaked For Major Commerce, Porn Sites

It could have been a small subset of a larger leak. Perhaps 13,000 out of millions that just happen to have the same seed values so they could be cracked easier. Of course then someone would have had to try those 13,000 against some of the top 100 web sites in the world but that should have left their fingerprints in logs all over the world.

Comment: Re:*sips pabst* (Score 1) 348

by Catbeller (#48668733) Attached to: Ars: Final Hobbit Movie Is 'Soulless End' To 'Flawed' Trilogy

Tom Bombadil served as a projection of absolute mystery in a fantasy world where much wonder was already well documented. Even the Valar didn't know who he was. Probably. Tolkien believed you should never tell all the secrets, and frankly HE didn't know what Tom was, and was happy that way. Even mysteries should have mysteries.

And TB was his young son Christopher's favorite doll, in the real world. He put it in to make his son happy, I think.

Comment: Re:print fans (Score 1) 348

by Catbeller (#48668655) Attached to: Ars: Final Hobbit Movie Is 'Soulless End' To 'Flawed' Trilogy

As a cloaked and rather spiritually amnesiac Maia, Gandalf has, along with all the other Ainur now locked into Arda who listened to the Eru Illuvatar Lecture about how the new worlds would work, has sort of a feeling, based on impressive but never quite remembered foreknowledge, of how the rabbit is gonna jump. He's got prophetic mojo, in small amounts, and he's on a Really Real Mission from God, or at least God's lieutenant, Manwe.

(Ever wonder who foretold all those prophecies everyone keeps talking about? Foreknowledge is part of ME. Some have it).

Comment: Re:miscreation (Score 1) 348

by Catbeller (#48668597) Attached to: Ars: Final Hobbit Movie Is 'Soulless End' To 'Flawed' Trilogy

The crap was in the LOTR appendices. Tolkien just never had time enough to fill in the blanks. Christopher won't let Jackson have the other books, but the story Jackson told IS what happened off-screen, as it were, in the Hobbit book. Galdalf went off mysteriously, met with the White Council, got imprisoned, went after Sauron with the others and drove him out of his body (again). He interacted with a lot of people off-book, and Tolkien wrote a history documenting it. There are other creatures under the ground than Tolkien listed - practically an infinite number left over from when Ea was a void- inumerable other sentient species and far-off lands and continents. I was happy to see a little fill - there's so much room to grow the world. Doesn't make the movie bad, unless you think the Hobbit was bad, which it kinda was, as a novel, being a child's story. The Battle of Five Armies *was* that vicious - Tolkien simply Knocked Out the Protaganist and moved the story past the hero, keeping the violence down. ME wasn't a bonnie bucholic place, not at all.

Comment: Tolkien would have changed the story if he could (Score 1) 348

by Catbeller (#48668521) Attached to: Ars: Final Hobbit Movie Is 'Soulless End' To 'Flawed' Trilogy

Tolkien wrote the Hobbit for small children. Twee in tone - the dwarves had green, and yellow, and blue beards, for instance. In his short piece, A Meeting in Erebor (adapted into the movie!), he had Gandalf and Aragorn meet at the Pony, I think, and they discussed dark and grave matters in an adult tone, setting the Hobbit events up for the LOTR. Had Tolkien not had a day job, he'd probably had rewritten the Hobbit to bring in in line with the LOTR and the older stories.

Jackson had the appendices of the LOTR to work with, but nothing else from the Simarillion or Untold Tales, because the Tolkien estate doesn't like what he did. Perhaps that was shooting themselves in their own feet, as he had little story material and so had to make up filler.

Do recall that the Hobbit, as a story, is rather thin.

Comment: Re:Won't work the way you think (Score 1) 361

by Catbeller (#48668179) Attached to: Study: Police Body-Cams Reduce Unacceptable Use of Force

Hm. what I am trying to say, I think, is never to accept tech as a panacea, or even a amelliorative to a problem that is human and structural. The buggers will squirm and put a new hold on the suspect, as it were. The beatings may go down - that would be good. The cameras will help, undoubtably, and already have. We techites tend to believe in our equipment and ingenuity. But, recall that Apple has a patent on a geofenced override command for multimedia recording (on a phone at least). At some point, police and the like may, probably will, get the capability to shut off our recorders at will. Then they could shut off theirs, and then the DA and a jury has to decide who's lying. Usually cops and the DA win that battle.

Problem is, as I noodle it, is that the cops have become non-civilians, in their minds. If the people are civilians, then they must be soldiers, and they are no longer employees but an occupying army beset by the enemy. They'd never even say that in their minds, but it is, you must admit at this point, obvious that they have dettached themselves from the civilians. Turning your back on your boss, for instance, smacks of the ol' Army has Turned Against El Presidente. I dunno. Time to tear it down and start over? Reduce the number of stupid crimes so that the police don't have to view EVERYone as the possible enemy (trim it down to assault, murder, theft, and dump the moral and chemical crimes).

Comment: Re:Won't work the way you think (Score 1) 361

by Catbeller (#48668123) Attached to: Study: Police Body-Cams Reduce Unacceptable Use of Force

Relative impunity. Those were the cases where they were detected and punished. There will be thousands, tens of thousands of cases when they will not be caught, or if nailed, not punished much. Or simply plead technical issues - they have done so. You will of course hear about those fired; there certainly will be a small enough number so that they will be covered. The cops will adapt and adjust, and turn off the cams for the very nastiest acts. I've posted a number of links downthread where cops shut off their cams and killed someone, claiming tech issues.

And NO cop is ever presumed guilty. Infraction at most, fired at rare intervals. We won't count the number of times they get away with it, as apparently even Slashdotters aren't aware they are already disabling surveillance - what people don't know about, they don't notice. What will almost never happen, at the end of the diminishing curve of punishment, is a charge of murder.

Tens of thousands of men and women who have all the power and relative immunity and tight solidarity will wiggle this about until they have a new advantage.

Comment: Re:Won't work the way you think (Score 1) 361

by Catbeller (#48668039) Attached to: Study: Police Body-Cams Reduce Unacceptable Use of Force

Apple got the patent. So, if implemented, a command could shut off all phone cams (airplane mode, at least, refuse to record at most) in response to legal authority in a geofenced area - movie theaters, areas around celebrities, or non-"1st Amendment" zones established by cops.

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