Okay, so, instead the blackhats break into the factory that is manufacturing the chips and modify the firmware that is being written to them. Now, every USB keyboard that the company manufactures looks to the computer as both a USB keyboard, and a USB network device.
I'm sure you remember those instances where malware was being pre-installed onto pre-formatted external drives, right?
Sure, there's a lot more to be done to turn that "Fake network device" into something that can trick the OS into treating it as a default gateway, as well as acting as a forwarding device so that modified packets can make it out the _real_ gateway, but... it only needs one weird combination of behaviours... somewhere... to be effective.
I just helped a friend out with a ton of javascript animation for his webcomic (blatant plug: http://www.prequeladventure.com/ ), creating a 3d, semi-interactive environment, all in JS/CSS, and I ended up using a ton of math for it. Simple offset calculations, trig, parabolic arcs, exponential decay, and so on. Ended up giving up some things that would have required finding cubic roots of bezier curves because my math wasn't good enough.
But apart from that, I haven't used any serious math in a long time.
So, it depends... I think the more you rely on interacting or emulating "the real world", the more important math is.
You dont HAVE to wire the pairs up as EIA-568... you can wire them up any way you want to, as long as the differential signals go down the twisted pairs.
Of course, then you're not following a ratified standard. Maybe Denon did that... maybe they didn't, and the exploded diagram is just inaccurate.
Nothing wrong with sending digital audio signals over ethernet. Not really that much difference than optical. After all, both copper ethernet and fibre work just fine.
if they were sending analogue audio signals over twisted pair, well, that's a different kettle of fish, but I bet you it wouldn't be a deal killer either: differential signals work pretty well. That twisted pair junk is designed to handle 125MHz clock rates, and it seems to to just fine:)
Not sure what it would do to the low end, though, and since I'm not a audio tech, I wouldn't be able to tell you. Throw some dolbys at it, and I'm sure it would be fine.
If you go to "other pictures" and then the "inside" view, see how they're connecting the cable pairs to the connector: rather than the green pair going to pins 3 and 6 (as per normal EIA-568), they're going to pins 5 and 6.
That will actually reduce crosstalk the tiniest of smidgins (that's a technical term!).
Now, of course, it's MORE likely just a non-impeccable representation, and they ARE wiring it up using normal EIA-568... but wouldn't it be funny if that's the difference they're claiming is "all worth it". Geez... for $500, they could have just commissioned AMP or Foxconn to make a custom connector for them, no?
Okay... however, if you have a PHASE CHANGE printer, you can lay down a pixel in any of 16 million colours, because it doesn't use half-tone screens to get colour variations. These printers tend to have a low stated resolution - 300lpi for example - but they're much better because again they can use all of that reslution for image detail, and not halftones.
So, on the (unbelievable) assumption that a scanner could pick up ALL the 16 million colour variations. We have:
or 17647534080000 bytes. That's 1.7 trillion bytes!
Now, I don't believe for a second that the printer nor scanner are accurate enough to pick up all the variations. So... lets take something more realistic. Lets assume 75dpi, and 512 (8*8*8) colour variations:
8.5*75*8.5*75*512 = 208080000 bits or 26010000 bytes, or 26 Megabytes. That seems a bit more "believable" but also demonstrates how quickly the storage degrades by taking off a couple binary factors from the X, Y and C dimensions.
I wrote a computer program back in 1988 that does exactly this kind of thing. Uses a forward-X and forward-Y links for the purposes of spatial ordering.
The program was a "mapping program" for a oldold mainframe computer game called "Space Empires". It was a turn-based exploration and combat system that generated it's output in a textual listing. Each "world" had a number, and listed the "worlds" that had appeared in the Up, Down, Left and Right directions. Very hard to get an idea of how things related unless you fed the data through a mapping program.
A previous version of the program used a big-ass 2D array. Which was fine, until we started playing with universes that had thousands of worlds. There wasn't enough memory for our processes, so I concocted a way to use 2D linked lists to minimise memory usage.
I've JUST spent the past three weeks emptying out my Inbox. I had over 1000 messages, going back to 2002, and all messages I felt deserved some kind of answer. (I run a rather busy website, and folk are mailing me for help or complaints all the time).
Unfortuantely, if I let an email sit for a while - like, its a difficult problem to deal with - it'll get buried in other mail, and before I know it, I have a hundred messages, then 200, then 500, and you can guess the rest.
Well, I have ZERO now. They're all handled. Okay, I cheated on some and turned a handful of messages into a "todo" item, but in every case the people sending me mail know what I've done... now.
Zero messages! Woo! I wonder how long this will last:)
Well, perhaps with a little moderation, but I for one am getting fairly tired of the hyped-up, FUDish titles and briefs. I would have thought Slashdot was above it... at least a LITTLE bit above it... maybe just its nose above water.
Ratios are usually used for like units, or non-united figures. You should have used "/" like EVERYONE ELSE elses, rather than trying to be clever (and failing).:)
PHP is not totally blameless in this. It is VERY easy to write PHP code that is subject to injection-style attacks, mostly because it's SO easy to insert one string into another string without doing the appropriate quoting and character escaping. Ie, PHP makes it easy to do the wrong thing.
Whether or not this is PHP's fault, or the fault of a programming community that doesn't think enough about security, is left as an excercise for the reader:)
Slashdot Mirror
> NY Mayor Commits To Reduce Emissions 40% By 2030
Mayor promises to eat better: less beans, more fibre.
http://www.homestarrunner.com/...
Okay, so, instead the blackhats break into the factory that is manufacturing the chips and modify the firmware that is being written to them. Now, every USB keyboard that the company manufactures looks to the computer as both a USB keyboard, and a USB network device.
I'm sure you remember those instances where malware was being pre-installed onto pre-formatted external drives, right?
Sure, there's a lot more to be done to turn that "Fake network device" into something that can trick the OS into treating it as a default gateway, as well as acting as a forwarding device so that modified packets can make it out the _real_ gateway, but... it only needs one weird combination of behaviours... somewhere... to be effective.
78a7ecf065324604540ad3c41c3bb8fe1d084c50 ? Really ? Crap... that's the combination to my luggage.
I just helped a friend out with a ton of javascript animation for his webcomic (blatant plug: http://www.prequeladventure.com/ ), creating a 3d, semi-interactive environment, all in JS/CSS, and I ended up using a ton of math for it. Simple offset calculations, trig, parabolic arcs, exponential decay, and so on. Ended up giving up some things that would have required finding cubic roots of bezier curves because my math wasn't good enough.
But apart from that, I haven't used any serious math in a long time.
So, it depends... I think the more you rely on interacting or emulating "the real world", the more important math is.
> Couldn't you describe any star in such a fashion?
No.
For any range X there is a "youngest star" within that range. The reverse is not true.
Hunt down an oldish game called Colobot. Windows only game. Its a typical "world exploration" game but with one very interesting addition.
You can either control the myriad of robots manually, OR... program in a very C++-like language and let them "have at it".
The game encourages code re-use, so once you've coded a particular operation, you're encouraged to re-use it for subsequent levels.
One of the most fun coding experiences I've ever had.
You missed the point.
You dont HAVE to wire the pairs up as EIA-568... you can wire them up any way you want to, as long as the differential signals go down the twisted pairs.
Of course, then you're not following a ratified standard. Maybe Denon did that... maybe they didn't, and the exploded diagram is just inaccurate.
Nothing wrong with sending digital audio signals over ethernet. Not really that much difference than optical. After all, both copper ethernet and fibre work just fine.
:)
if they were sending analogue audio signals over twisted pair, well, that's a different kettle of fish, but I bet you it wouldn't be a deal killer either: differential signals work pretty well. That twisted pair junk is designed to handle 125MHz clock rates, and it seems to to just fine
Not sure what it would do to the low end, though, and since I'm not a audio tech, I wouldn't be able to tell you. Throw some dolbys at it, and I'm sure it would be fine.
They're not wiring the cable using EIA-568...
If you go to "other pictures" and then the "inside" view, see how they're connecting the cable pairs to the connector: rather than the green pair going to pins 3 and 6 (as per normal EIA-568), they're going to pins 5 and 6.
That will actually reduce crosstalk the tiniest of smidgins (that's a technical term!).
Now, of course, it's MORE likely just a non-impeccable representation, and they ARE wiring it up using normal EIA-568... but wouldn't it be funny if that's the difference they're claiming is "all worth it". Geez... for $500, they could have just commissioned AMP or Foxconn to make a custom connector for them, no?
"Superconducting" means "you can't get any more conductive than this". So, there's no problem.
Exactly. Pumpkins are totally dangerous.
"copyright" comes from "having rights to the copy", where copy here means the noun "written material" rather than the verb "to copy".
makes perfect sense to me. Most "successful" attacks against company networks come from within.
Umm... what?
Oh, I missed up, I used another 8.5 instead of 11 :)
Okay... however, if you have a PHASE CHANGE printer, you can lay down a pixel in any of 16 million colours, because it doesn't use half-tone screens to get colour variations. These printers tend to have a low stated resolution - 300lpi for example - but they're much better because again they can use all of that reslution for image detail, and not halftones.
So, on the (unbelievable) assumption that a scanner could pick up ALL the 16 million colour variations. We have:
8.5*300*8.5*300*256*256*256 = 141180272640000 bits
or 17647534080000 bytes. That's 1.7 trillion bytes!
Now, I don't believe for a second that the printer nor scanner are accurate enough to pick up all the variations. So... lets take something more realistic. Lets assume 75dpi, and 512 (8*8*8) colour variations:
8.5*75*8.5*75*512 = 208080000 bits or 26010000 bytes, or 26 Megabytes. That seems a bit more "believable" but also demonstrates how quickly the storage degrades by taking off a couple binary factors from the X, Y and C dimensions.
I wrote a computer program back in 1988 that does exactly this kind of thing. Uses a forward-X and forward-Y links for the purposes of spatial ordering.
The program was a "mapping program" for a oldold mainframe computer game called "Space Empires". It was a turn-based exploration and combat system that generated it's output in a textual listing. Each "world" had a number, and listed the "worlds" that had appeared in the Up, Down, Left and Right directions. Very hard to get an idea of how things related unless you fed the data through a mapping program.
A previous version of the program used a big-ass 2D array. Which was fine, until we started playing with universes that had thousands of worlds. There wasn't enough memory for our processes, so I concocted a way to use 2D linked lists to minimise memory usage.
Clearly you missed the "all messages I felt deserved some kind of answer." part.
I can't believe this topic just came up.
:)
I've JUST spent the past three weeks emptying out my Inbox. I had over 1000 messages, going back to 2002, and all messages I felt deserved some kind of answer. (I run a rather busy website, and folk are mailing me for help or complaints all the time).
Unfortuantely, if I let an email sit for a while - like, its a difficult problem to deal with - it'll get buried in other mail, and before I know it, I have a hundred messages, then 200, then 500, and you can guess the rest.
Well, I have ZERO now. They're all handled. Okay, I cheated on some and turned a handful of messages into a "todo" item, but in every case the people sending me mail know what I've done... now.
Zero messages! Woo! I wonder how long this will last
Here here.
Well, perhaps with a little moderation, but I for one am getting fairly tired of the hyped-up, FUDish titles and briefs. I would have thought Slashdot was above it... at least a LITTLE bit above it... maybe just its nose above water.
I'm sure you meant "two phenomes" rather than "two syllables"
Ratios are usually used for like units, or non-united figures. You should have used "/" like EVERYONE ELSE elses, rather than trying to be clever (and failing). :)
PHP is not totally blameless in this. It is VERY easy to write PHP code that is subject to injection-style attacks, mostly because it's SO easy to insert one string into another string without doing the appropriate quoting and character escaping. Ie, PHP makes it easy to do the wrong thing.
:)
Whether or not this is PHP's fault, or the fault of a programming community that doesn't think enough about security, is left as an excercise for the reader
But do Plymouth own "Scamp" across ALL categories? I doubt it :)
:)
Oh... you were being facetious... pardon me