That won't work, because Javascript interpreters use some processing power of their own. Say there's a 9x slowdown from native code. Then the spammer can just write a C implementation of the hashcash mechanism, and then have the effective power of nine computers. Even if, by some miracle, Javascript interpreters become as fast as compilers (but without the compilation stage), the hashcash solution has two drawbacks. First, it'll hurt ordinary users that don't upgrade their computer every Moore's law cycle (and if there was a way to signal that "I have an old computer, give me an easier problem", spammers would spoof that). Second, it wouldn't actually help, since the spammers would just use their zombie network to calculate the hashcash. See Proof of Work Proves Not To Work.
There's a way around the zombie problem: you can have a reputation network and then make known "bad apples" pay more, but that would be hard to set up for websites. For the application to mail, see Proof of Work Can Work. The Moore problem can be somewhat mitigated by using a function bound by memory access time (since that improves more slowly), but the problem will still be there.
That sounds like a variant of Paketto Keiretsu's SCANRAND, which puts an encrypted token in the IP sequence number field so as to scan without having to remember "I sent a packet to X". If that's really what it is (just with TCP connections instead of port scanning), then this attack is old indeed.
JC Denton: "Rule the world? Why? Who gave you the directive, there must be a human being behind your ambition"
Helios : "I should regulate human affairs precisely because I lack all ambition, whereas human beings are prey to it. Their history is a succession of inane squabbles each one coming closer to total destruction"
JC Denton: "In a society with democratic institutions the struggle for power can be peaceful and constructive, a competition of ideologies. We just need to put our institutions back in order."
Helios : "The checks and balances of democratic governments were invented because human beings themselves realized how unfit they were to govern themselves. They needed a system, yes, an industrial-age machine."
So pick 4500 at random and have these elect 450 among their numbers, using a reasonable PR algorithm. That should remove the most crazy while preserving general proportionality.
What you want is a time system that's synchronized to sunrise rather than to noon.
The bad news is that with such a system, you don't get just time zones, you get time "quadrants", and there's also a degenerate case by the poles (either it's light all day or it's dark all day).
An engineer at Jet Propulsion Labs says it should be possible to identify people from the way they walk -- a technique called gait analysis, whose power lies in the fact that a person's walking style is very hard to disguise.
I knew it! The Ministry of Silly Walks is really just a subdivision of MI6!
You know, there once was an organization that compiled this kind of extensive information. What was its name, you wonder? Das Ministerium fur Staatssicherheit.
The TSA people are tested each and every day. You give them flack over what they do in order to keep people safe...
No, we don't give them flak over what they do in order to keep people safe. We give them flak over what they do in order to trick some people into thinking they're safe. It's all theater, and the laws of nature don't care about appearance.
How about, make records of large primes of the form a^b +/- 1, as judged by sqrt(a) * b, where both a and b are prime. That's base-neutral. Some Mersenne primes fit the form, at least.
Why not go to the extreme of magnification by gravitational lensing: use the Sun as a lens. Perhaps that degree of magnification would let one measure the atmospheric spectra of exoplanets directly.
Why not remove the physical key completely and use a tamper resistant smartcard? Have it do EKE (or Socialist Millionaire) with a changing password like the ones you have on two-factor authentication devices.
Slashdot Mirror
Look, could I have music, movies, ads, and games without the ads?
Uuuggghh!
What do you mean, uuughh? I don't like ads!
Downgrade? Upgrade is more like it.
That won't work, because Javascript interpreters use some processing power of their own. Say there's a 9x slowdown from native code. Then the spammer can just write a C implementation of the hashcash mechanism, and then have the effective power of nine computers. Even if, by some miracle, Javascript interpreters become as fast as compilers (but without the compilation stage), the hashcash solution has two drawbacks. First, it'll hurt ordinary users that don't upgrade their computer every Moore's law cycle (and if there was a way to signal that "I have an old computer, give me an easier problem", spammers would spoof that). Second, it wouldn't actually help, since the spammers would just use their zombie network to calculate the hashcash. See Proof of Work Proves Not To Work.
There's a way around the zombie problem: you can have a reputation network and then make known "bad apples" pay more, but that would be hard to set up for websites. For the application to mail, see Proof of Work Can Work. The Moore problem can be somewhat mitigated by using a function bound by memory access time (since that improves more slowly), but the problem will still be there.
That sounds like a variant of Paketto Keiretsu's SCANRAND, which puts an encrypted token in the IP sequence number field so as to scan without having to remember "I sent a packet to X". If that's really what it is (just with TCP connections instead of port scanning), then this attack is old indeed.
How about the phrase/name "International Organization of Corruption" and its associated acronym?
Or, to quote Deus Ex:
JC Denton: "Rule the world? Why? Who gave you the directive, there must be a human being behind your ambition"
Helios : "I should regulate human affairs precisely because I lack all ambition, whereas human beings are prey to it. Their history is a succession of inane squabbles each one coming closer to total destruction"
JC Denton: "In a society with democratic institutions the struggle for power can be peaceful and constructive, a competition of ideologies. We just need to put our institutions back in order."
Helios : "The checks and balances of democratic governments were invented because human beings themselves realized how unfit they were to govern themselves. They needed a system, yes, an industrial-age machine."
So pick 4500 at random and have these elect 450 among their numbers, using a reasonable PR algorithm. That should remove the most crazy while preserving general proportionality.
It makes perfect sense to the publishers, and it's called price discrimination. Chop up the demand curve so you can get more out of each block.
So now the Mars rover's tracks will spell "PWN'D" if you look at them from high enough altitude?
Liquid sodium, lead or molten salts can also work. Or take some of that Helium on the moon and run a gas-cooled reactor.
What you want is a time system that's synchronized to sunrise rather than to noon.
The bad news is that with such a system, you don't get just time zones, you get time "quadrants", and there's also a degenerate case by the poles (either it's light all day or it's dark all day).
An engineer at Jet Propulsion Labs says it should be possible to identify people from the way they walk -- a technique called gait analysis, whose power lies in the fact that a person's walking style is very hard to disguise.
I knew it! The Ministry of Silly Walks is really just a subdivision of MI6!
You know, there once was an organization that compiled this kind of extensive information. What was its name, you wonder? Das Ministerium fur Staatssicherheit.
Next up: making a program that scans through all EULA-ish (Bayesian classifier?) text boxes on the screen and replaces the text with the GPL.
"Yeah, I agreed to what the setup program said. Here's a screenshot. By the way, give me your code, now!"
The TSA people are tested each and every day. You give them flack over what they do in order to keep people safe...
No, we don't give them flak over what they do in order to keep people safe. We give them flak over what they do in order to trick some people into thinking they're safe. It's all theater, and the laws of nature don't care about appearance.
That constant will kill you, though.
You forgot the 0.1% that'll say "Oh goody, another challenge! I'll fire up IDA right away".
A nonconstructive proof that P = NP would be very interesting, and also very annoying (since the actual algorithm might be hideously complex).
How about, make records of large primes of the form a^b +/- 1, as judged by sqrt(a) * b, where both a and b are prime. That's base-neutral. Some Mersenne primes fit the form, at least.
Why not go to the extreme of magnification by gravitational lensing: use the Sun as a lens. Perhaps that degree of magnification would let one measure the atmospheric spectra of exoplanets directly.
True freedom-lovers abhor that kind of DRM and carve on tungsten tablets before using CVD to coat them with diamond...
... you insensitive clod!
You're not supposed to think about that. You're supposed to just hear "terrorist" and then say "okay, I'll acquiesce", no thought required.
Why not remove the physical key completely and use a tamper resistant smartcard? Have it do EKE (or Socialist Millionaire) with a changing password like the ones you have on two-factor authentication devices.
Warning: Weather control device activated!
If the person had the physical key why would he need to copy it?
Steal the key, copy it, put key back to avoid getting caught... something like that. Then use the copy to go wherever you want!