i forwarded your threat to the university of michigan's department of public safety, the campus cops. better start encrypting all that pr0n on your hard drive before they seize it.
i also sent it to the university of michigan's dean of engineering. i suggest you get all your computer-related coursework done in a hurry, while you still have computing privileges.
i know the approximation algorithm you mean. it's not fully general. in particular, it doesn't work on graphs that don't satisfy the triangle inequality.
that depends -- an approximate traveling salesman tour can be computed in some graphs, e.g., any graph that satisfies the triangle inequality, but not all. in the general case, finding a tour that is no worse than k times optimal is also np-hard.
i knew all that theory i studied would come in handy! mod me up, scotty, there's intelligent life here!
Finding the most efficient path between the two endpoints is an NP complete problem.
huh? dijsktra's algorithm solves the shortest path problem in O(n^2) for the general case, O(n log n) for most real-world problems, in which the graph is sparse.
i know there is some concern about the power requirements of quantum computers, but my physicist friends assure me that cold fusion reactors will provide all the power they need.
your comments about t=0 are a little off the mark. linux and openbsd smartcard libraries don't do anything special, they just talk to the serial port. also, speeds up to 115.2 kbps are not uncommon; most cards can do > 50 kbps.
the big problem with smartcard comms is that is half-duplex -- only a single transmit/receive pad on the card. in practice, this forces a master/slave (or "simplex") protocol.
since you claim to have a clue, i guess there's no point in suggesting that you get a clue... but you seem to be unaware that smartcards can be irreversibly programmed to be read-only.
as usual, any time smart cards are mentioned on/., a bunch of europeans jump in to praise the wonders of the electronic wallet, to announce that everyone uses and loves them over there, and to suggest that americans are stupid for not embracing them as well.
it's all bullshit. no one uses electronic wallets in europe.
this is from the economost, may 2001: "According to 1999 figures collected by the European Central Bank, for every 1,000 cardholders, only 20 made a virtual-cash transaction on any day in Belgium, two in Finland, and just one in Germany. "
note that belgium is regarded as the country with the most loyal e-purse customer base.
what europeans DON'T have is access to credit that americans take for granted. who wants a stored value card that gives all the float to the bank when you can have a credit card that gives the float to the consumer? we're not stupid, you know.
considering that outguess is open source, freely available, well-documented, and openly published in a high-quality, refereed conference, and that farid's work consists of nothing more than a press release, well... you make the call.
neils provos (openbsd and openssh developer) has a stego detector based on similar principles (i.e., look for statistical anomalies in jpeg files).
in fact he is presenting a paper on the subject at the usenix security conference tomorrow.
unlike the dartmouth folks, who apparently think press reports are the proper medium for scientific interchange, provos makes his results publicly available; see
Slashdot Mirror
what fubob said: usenix, usenix, usenix.
all tech, no suits, good location, heavy geek flux.
nobody
check out niels provos' silly little hack, VOMIT
"The vomit utility converts a Cisco IP phone conversation into a wave file that can be played with ordinary sound players."
arp redirect the phone of your choosing, then
tcpdump|vomit|waveplay. instant wiretap!
oops, gotta go to jail now.
nobody
so your threat was idle?
;-)
so was mine
nobody
i forwarded your threat to the university of michigan's department of public safety, the campus cops. better start encrypting all that pr0n on your hard drive before they seize it.
i also sent it to the university of michigan's dean of engineering. i suggest you get all your computer-related coursework done in a hurry, while you still have computing privileges.
nobody
isn't it a bit odd that the nyt reporter uses a number for her middle name?
nobody
i know the approximation algorithm you mean. it's not fully general. in particular, it doesn't work on graphs that don't satisfy the triangle inequality.
nobody
that depends -- an approximate traveling salesman tour can be computed in some graphs, e.g., any graph that satisfies the triangle inequality, but not all. in the general case, finding a tour that is no worse than k times optimal is also np-hard.
i knew all that theory i studied would come in handy! mod me up, scotty, there's intelligent life here!
nobody
i glanced at the link and it looks to me like the hard part of what they are trying to do is solving the multiple-constraint problem.
i'm guessing a reduction from integer programming would be straightforward.
nobody
somebody forgot to tell these yokels that they fixed this problem in tcp years ago.
i wish them luck in their ipo
nobody
huh? dijsktra's algorithm solves the shortest path problem in O(n^2) for the general case, O(n log n) for most real-world problems, in which the graph is sparse.
nobody
i know there is some concern about the power requirements of quantum computers, but my physicist friends assure me that cold fusion reactors will provide all the power they need.
nobody
er, minicomputer. whatever that is ... they haven't been spotted around these parts for years. gone the way of the wooly mammoth, i s'pose.
nobody
excuse me? unix' home is a minimcomputer, not a mainframe.
-- nobody
ps: unix ticks its billion second next saturday!
the umich card was good up to $50, not $20.
...
as if that makes a difference
nobody
sometime this summer, umich abandoned the schlumberger payflex card and now issues old fashioned id cards (i.e., sans chip).
nobody
nobody
your comments about t=0 are a little off the mark. linux and openbsd smartcard libraries don't do anything special, they just talk to the serial port. also, speeds up to 115.2 kbps are not uncommon; most cards can do > 50 kbps.
the big problem with smartcard comms is that is half-duplex -- only a single transmit/receive pad on the card. in practice, this forces a master/slave (or "simplex") protocol.
nobody
since you claim to have a clue, i guess there's no point in suggesting that you get a clue ... but you seem to be unaware that smartcards can be irreversibly programmed to be read-only.
nobody
as usual, any time smart cards are mentioned on /., a bunch of europeans jump in to praise the wonders of the electronic wallet, to announce that everyone uses and loves them over there, and to suggest that americans are stupid for not embracing them as well.
it's all bullshit. no one uses electronic wallets in europe.
this is from the economost, may 2001: "According to 1999 figures collected by the European Central Bank, for every 1,000 cardholders, only 20 made a virtual-cash transaction on any day in Belgium, two in Finland, and just one in Germany. "
note that belgium is regarded as the country with the most loyal e-purse customer base.
what europeans DON'T have is access to credit that americans take for granted. who wants a stored value card that gives all the float to the bank when you can have a credit card that gives the float to the consumer? we're not stupid, you know.
nobody
considering that outguess is open source, freely available, well-documented, and openly published in a high-quality, refereed conference, and that farid's work consists of nothing more than a press release, well ... you make the call.
nobody
and what do we make of the fact that there are no papers on steganography on his web page?
nobody
neils provos (openbsd and openssh developer) has a stego detector based on similar principles (i.e., look for statistical anomalies in jpeg files).
in fact he is presenting a paper on the subject at the usenix security conference tomorrow.
unlike the dartmouth folks, who apparently think press reports are the proper medium for scientific interchange, provos makes his results publicly available; see
http://www.citi.umich.edu/techreports/
reports 01-1 and 01-4.
nobody
i am really looking forward to midnight uct tonight -- it's a code red party!
we'll have all our packet sniffers running full tilt and plan to laugh and laugh at all the losers running iis! die! die! die!
nobody
i guess you've never heard a michigan fan utter "go blue."
go blue.
now you have. heh.
blue went.
nobody