December 2004 - cypherpunks-legacy

FTC spotlights proposals on P2P risks
by R.A. Hettinga 08 Dec '04

08 Dec '04

<http://news.com.com/2102-1025_3-5482429.html?tag=st.util.print> CNET News FTC spotlights proposals on P2P risks By John Borland http://news.com.com/FTC+spotlights+proposals+on+P2P+risks/2100-1025_3-54824… Story last modified Tue Dec 07 18:41:00 PST 2004 The head of the Federal Trade Commission sent a letter to Congress on Tuesday highlighting efforts that file-swapping companies are making to disclose potential online risks. Legislators have criticized software such as Kazaa, Morpheus and eDonkey for exposing users to spyware, pornography and the risk of lawsuits. Although protesting that their software was no more risky than use of the Internet at large, peer-to-peer companies have worked with the FTC to develop better consumer notification techniques. The FTC included several of those proposals with its letter to Congress, saying that when implemented, they would do a better job of warning consumers. "(Peer-to-peer) industry members have developed proposed risk disclosures that we believe would be a substantial improvement over current practices," FTC Chair Deborah Platt Majoras wrote in the letter. "We intend to monitor and report back to interested members of Congress on the extent to which P2P file-sharing program distributors implement these proposed risk disclosures." The letter follows a tumultuous year in Congress for file-swapping companies, which faced proposed legislation that would have overturned a series of court rulings to make them responsible for copyright infringement on their networks. That legislation ultimately did not pass but could return next year. Under the new proposals, consumers would be notified when the software is installed that downloading music, games, movies or software without authorization is illegal. The companies' Web sites would also have detailed information about other possible risks in using the software. Representatives for file-swapping trade associations said the FTC letter could help show legislators that they are serious about playing by the rules. "We are grateful for the interest that the Federal Trade Commission has taken in this young industry's efforts at self-regulation," Distributed Computing Industry Alliance Chief Executive Officer Marty Lafferty said in a statement. "We hope the FTC letter to Congress will help foster a better understanding on the Hill of the realities of P2P technologies and of the actions being taken by responsible parties to commercially develop this new distribution channel." The FTC will hold a two-day session studying the consumer impacts of file-swapping technology beginning Dec. 15. -- ----------------- R. A. Hettinga <mailto: rah(a)ibuc.com> The Internet Bearer Underwriting Corporation <http://www.ibuc.com/> 44 Farquhar Street, Boston, MA 02131 USA "... however it may deserve respect for its usefulness and antiquity, [predicting the end of the world] has not been found agreeable to experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'

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k-way hash collisions
by R.A. Hettinga 08 Dec '04

08 Dec '04

--- begin forwarded text Delivered-To: cryptography(a)metzdowd.com Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys Date: Wed, 8 Dec 2004 07:21:18 -0800 (PST) From: kas kati <kaskati2003(a)yahoo.com> Subject: k-way hash collisions To: cryptography(a)metzdowd.com Sender: owner-cryptography(a)metzdowd.com For an ideal hash function, the complexity of finding a k-way collision is O(2^{(k-1)n/k}) therefore as k becomes larger, the complexity of a k-way collision attack approaches the complexity of a pre-image attack. Recently, Joux showed a generic multi-collision attack for iterated hash functions to reduce the k-way collision complexity to O(log(k)*2^{(n/2)}). But in his attack the pre-images are not independent. They are just combinations of block collisions of k blocks. Here are my questions: 1. How can the formula for the complexity of finding a k-way collision be derived? 2. Is there any hash design that allows to reduce the complexity of k-way collision for "independent" pre-images while preserving the complexity of the pre-image attack? Thanks in advance for your interest. --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to majordomo(a)metzdowd.com --- end forwarded text -- ----------------- R. A. Hettinga <mailto: rah(a)ibuc.com> The Internet Bearer Underwriting Corporation <http://www.ibuc.com/> 44 Farquhar Street, Boston, MA 02131 USA "... however it may deserve respect for its usefulness and antiquity, [predicting the end of the world] has not been found agreeable to experience." -- Edward Gibbon, 'Decline and Fall of the Roman Empire'

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Supremes need hanging
by Major Variola (ret) 08 Dec '04

08 Dec '04

At 07:37 PM 12/7/04 -0500, R.A. Hettinga wrote: ><http://www.nydailynews.com/news/local/v-pfriendly/story/259512p-222307c.html> >Klan's unmasked for city protests > The hoods hiding under the white hoods of the Ku Klux Klan will have to >show their faces if they want to protest in New York City, the Supreme >Court decided yesterday. Anonymity is as american as the BoR. The supremes need thermal chimney ascension for their deriliction of sworn duty.

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Kein Thema
by MPajer＠aol.com 08 Dec '04

08 Dec '04

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cog sci as a tool of the beast?
by Major Variola (ret) 08 Dec '04

08 Dec '04

At 07:21 PM 12/7/04 -0500, R.W. (Bob) Erickson wrote: >One of the tools currently being used in the cognitive sciences is the >measurement of reaction time to stimulus. >It turns out that the length of time it takes to given situations is a >credible proxy for how difficult the discrimination is to make. >Imagine a paranoia involving mysterious e-mail delays and the length >of time it takes to catagorize The viewscreens of the future will simply monitor the blood flow to various areas of the cortex to see if we are lying when we express our minute of hate, or love for the rulers. RT is so passe.

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Re: [i2p] I2P vs. Tor (fwd from mpc@innographx.com)
by Eugen Leitl 08 Dec '04

08 Dec '04

----- Forwarded message from "Matthew P. Cashdollar" <mpc(a)innographx.com> -----

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Kein Thema
by MPajer＠aol.com 08 Dec '04

08 Dec '04

unsubscribe

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Where is TM when you need him?
by Major Variola (ret) 07 Dec '04

07 Dec '04

At 11:10 AM 12/7/04 +0100, Nomen Nescio wrote: >Peter Trei: > >> > Where is Tim May when when you need him? :-) >> > >> Try scruz.general. > >or misc.survivalism For some time after he left, he cruised a feline group, perhaps because one of his cats died. Perhaps this was the inspiration for Puss, an anonymous freelance purveyor of force, in _Shrek II_. Or not.

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metaforce
by Major Variola (ret) 07 Dec '04

07 Dec '04

At 09:41 AM 12/5/04 -0500, R.W. (Bob) Erickson wrote: >John would warn you about the organ cuts >Tim would rave about the sizzle stake >I'm just scoping out the meat-eye view through the grinder. > >--bob >of mad cow metephors Bleating and babbling we fell on his neck with a scream.. -Cows with guns == unintentional consequences

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malevolent randomness
by Major Variola (ret) 07 Dec '04

07 Dec '04

At 07:46 PM 12/4/04 -0500, Steve Furlong wrote: >Much evidence to the contrary. My life is sucking pretty bad lately, due >to either a long series of fairly unlikely and uniformly unpleasant >coincidences or else the machinations of a malevolent universe set up >specifically to piss me off. Please remember to watch a random stream. Random negatives will occur in surprisingly long to your finite-state simian mind sequences. Myself, I run a geiger counter, and it makes me happy. Some bins, no counts, others, a few times higher than average. Dig? ----- "The generation of random numbers is too important to be left to chance." -Robert R. Coveyou ORNL mathematician

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