August 2003 - cypherpunks-legacy

Re: [eff-austin] Antispam Bills: Worse Than Spam?
by Jim Choate 11 Aug '03

11 Aug '03

For this to be taken seriously one must be able to -define spam- as if it were a mathematical entity (eg a 'point'). It must be absolutely differentiable from -all- other speech. You can't do that, nobody can. Anti-spam bills are worse than spam because they put transient feelings of anger above the principles of freedom. Freedom is -not- free! On Fri, 1 Aug 2003, Carl Webb wrote: > Antispam Bills: Worse Than Spam? > > > By Ryan Singel | Also by this reporter Page 1 of 2 next ; > > 03:55 PM Jul. 30, 2003 PT > > While no one has sympathy for the devils that fill inboxes with promises > of lower mortgages and larger members, not everyone is supporting the new > movement to banish spammers from the Internet. > > Some online advocates worry that heavy-handed antispam measures, such as > centralized blacklists and charging for delivery, will destroy e-mail. > Advertisement > > * Story Tools > > [Print story] [E-mail story] > > Electronic Frontier Foundation's head counsel Cindy Cohn, for instance, > argues that antispam crusaders are forgetting the Internet's first > principle -- information flows freely from end to end. Cohn fears that > the Internet's openness will be collateral damage in the war against > unwanted e-mail. > > Cohn says her organization's position on spam blocking can be boiled down > to a simple proposition: "All nonspam e-mail should be delivered." It's > an information age take on the Hippocratic oath, which requires doctors > to first do no harm. > > "It's not the job of an ISP to block e-mail," added Cohn. "E-mail isn't a > toy anymore. If I don't get an e-mailed notice from the federal district > court mailing list, it's malpractice." > > Even some who sell antispam software to companies say that ISPs shouldn't > be blocking mail. > > "Blocking e-mails is folly," said Brian Gillette, whose company sells an > enterprise-level, antispam appliance called trimMail Inbox. "If I'm an > ISP and I stop a $150,000 equipment sale because I decided it was spam, > I'm in for a lawsuit." > > Marv Johnson, legislative counsel for the American Civil Liberties Union, > worries that the ability to speak anonymously on the Internet is being > put at risk by federal antispam legislation. > > Howard Beale of the Federal Trade Commission told House members at a > recent hearing on proposed antispam legislation that "spam threatens to > destroy e-mail." > > Several of the bills currently under consideration would make it illegal > to mask a sender's identity or forge routing information, both of which > are tricks used by spammers to avoid the ire of those who receive their > e-mails. But it's also a tactic used by dissidents in countries with > repressive governments who want to communicate with like-minded > individuals. > > "Many of these bills criminalize a message header that isn't accurate," > said Johnson. "That's not fraud. If you send out messages through an > anonymizer, then you could get sent to jail." > > Cohn concurs, arguing that the bills criminalize the behavior of people > -- such as closeted gay teens or government whistle-blowers -- who have > legitimate reasons for speaking anonymously on the Internet. > > EFF already has been a victim of overbroad spam filters. Its newsletter, > which has more than 30,000 subscribers, has been bounced by aggressive > keyword filters. In one case, its message was blocked because it > contained the word "rape," used when talking about EFF's advocacy on > behalf of an online group, Stop Prisoner Rape. > > When the EFF asked around, it found that other noncommercial bulk > mailers, such as listservs, were running into problems, too. > > For example, AOL blocked e-mails from one of EFF's clients, MoveOn.org, > an online, liberal political action group which saw its membership swell > to more than 2 million during the antiwar movement. > > "MoveOn.org, one of EFF's clients, has problems all the time, but > MoveOn.org is now big enough to be on whitelists," said Cohn. "I'm more > concerned about the next MoveOn." > > Challenge-and-response systems pose particular problems for newsletters > and listservs. These systems try to cut down on fraudulent e-mail by not > delivering a message until the sender replies to a confirmation e-mail > sent by the intended recipient's ISP or e-mail host. > > "Declan McCullagh of Politech and Dave Farber of Interesting-People can't > do 100 challenge-responses a day," said Cohn. "That, as a solution, > doesn't scale." > > It would be wrong to call Cohn soft on spam. While in private practice > she sued a spammer and won a court injunction and $60,000. And her > employer uses antispam technology on its own servers. > > The difference, according to Cohn, is that the SpamAssassin software EFF > uses doesn't block spam, it simply rates each e-mail. Staffers then set > up their e-mail clients to separate messages into different inboxes. This > keeps the main e-mail boxes free of spam, but allows individuals to check > the spam folder occasionally to see if a legitimate e-mail was > incorrectly tagged as junk. > > Many in the technology industry think that only better technology can > stop the spam deluge. > > "The only people who can stop spammers are other technologists," said > trimMail's Gillette. > > The most promising new approach is better filters that use Bayesian > algorithms to tag spam automatically and move it into a spam folder. The > algorithms look at the body and header of an e-mail and judge from past > experience whether an incoming message is junk. Users then train the > algorithm, by moving misclassified e-mail from one e-mail folder to > another. > > Paul Graham, who many credit for applying Bayesian filtering to the spam > problem, is ecstatic at the power of the new filters. > > "I don't need blacklists," said Graham. "My own software is better than I > am at deciding what is spam and what is not." > > Several open-source and commercial products, such as SpamBayes and Spam > Bully, already use Bayesian filtering. > > The ACLU's Johnson hopes the new technology will head off the worst of > the antispam legislation. > > "Why do we want to start imposing a different world for the Internet than > we have in the real world?" asked Johnson. > > "Let the marketplace handle spam," he said. "When Congress wants to show > they are doing something about an issue, they often screw it up." > > End of story > > Send e-mail icon Have a comment on this article? Send it > > More stories written by Ryan Singel > > > ________________________________________________________________________________ > MSN 8 with e-mail virus protection service: 2 months FREE* > -- ____________________________________________________________________ We are all interested in the future for that is where you and I are going to spend the rest of our lives. Criswell, "Plan 9 from Outer Space" ravage(a)ssz.com jchoate(a)open-forge.org www.ssz.com www.open-forge.org --------------------------------------------------------------------

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Mom aids in hunting terrorists over Web
by R. A. Hettinga 11 Aug '03

11 Aug '03

<http://dynamic.washtimes.com/print_story.cfm?StoryID=20030808-104401-1189r> The Washington Times www.washingtontimes.com Mom aids in hunting terrorists over Web By Neil Doyle Published August 9, 2003 Referred to by her spy masters only as "Mrs. Galt," she is by day an unremarkable American housewife and mother. But after her two children go to bed, she plunges into a secret world of Internet chat rooms and Web sites populated by some of the most dangerous people on earth. Burrowing into the byzantine network of unpublicized Web sites used by al Qaeda and other terror groups for their routine communications, she sweet-talks her interlocutors into revealing their plans, often with fatal consequences for the terrorists. They have no idea that their supportive new "sister" is a terrorist hunter reporting every word they say to a variety of intelligence agencies. She is so trusted by her unsuspecting targets that they often send her pictures of themselves displaying heavy machine guns and other weapons. She has even been sent pictures of men proudly displaying severed human heads. Her most recent venture - penetrating al Qaeda-affiliated groups in Pakistan - is said to have resulted in the death and detention of several terrorists. Others are still at large, making it necessary to keep her real name and hometown secret. The results of her latest exploits, including transcripts of her chats with suspects, have been placed on a Web site for all to see at www.pakistan-army-isi.com. Despite the name, the site has no connection to the Pakistani army or ISI, the country's intelligence service. "I would have loved to have seen [the terrorists4] faces when they saw the messages on the Web," Mrs. Galt, 42, said in an interview conducted by e-mail. "All I can do is hope that some of the terrorists I talked to get picked up. After all, they are not terrorists until a court says they are." Mrs. Galt is an example of a new breed of cyber-spy - ordinary citizens who want to "do their bit" by putting their computer skills to use fighting terrorism. She reports to London-based private intelligence consultant Glen Jenvey, who makes his research available to government services, including the FBI and the military intelligence agencies of Russia and India. "She has brought us first-rate military counterintelligence, and the people at the top respect her very much," said her British handler, one of a loosely organized group of counterintelligence researchers who specialize in using the Internet to infiltrate militant Islamic groups. Armed with a crib sheet summarizing Islamic sayings and customs, Mrs. Galt plays the part of a "sister" wanting to support the men waging jihad. She ingratiates herself and offers to lend her expertise with computers to further the aims of the groups. Jihad fighters on the front lines in Afghanistan, Pakistan and Kashmir, who often have not seen a woman for several months, seize on the chance to talk to a woman. Mrs. Galt says she flirts with the men to play on their hopes and deflect any suspicions. Over a period of weeks and even months, she slowly teases out details of coming operations, locations of bases and movements of personnel. Mrs. Galt said she has gone as far as setting up Web sites for some notorious groups, including the al Qaeda-affiliated Lashkar-e-Taiba in Pakistan. During one recent online chat, a contact was mourning the death of a friend. "Sister, I cried very much in my prayers because my very close friend, who was also with me in training, got killed," the man wrote. Mrs. Galt said she lent a sympathetic ear and provided soothing words, all the time knowing that information she had provided might have led to the man's death. She said she felt no trace of guilt. Other intelligence coups by Mrs. Galt include a revelation that terrorist groups in Pakistan have been conducting experiments with chemical weapons. Members of one group were asked in an "urgent appeal" to track down the formula for making chlorine gas. They were also exploring the feasibility of manufacturing biological weapons by extracting live viruses from vaccines and cultivating them. Other information she has provided include details of a string of bank accounts used by militant groups, which have shed valuable light on how these groups are funded. Not everything she hears is reliable or can be confirmed. She has also been told by her Web correspondents that Osama bin Laden is being sheltered by Islamist rebels in Chechnya. Mrs. Galt said she has received death threats since she went public, but is undeterred. She is about to adopt a new guise and go back online after a short break. "In about a week or so, I'll have another ID and start all over again, hitting the Web looking for jihad supporters," she said. "It's a never-ending battle." -- ----------------- 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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Jay Leno comment
by Steve Schear 11 Aug '03

11 Aug '03

TV comedian Jay Leno made this comment August 4, regarding the effort now underway to write a constitution for Iraq: "Hey, why don't we send them ours? It worked well for us for over two hundred years . . . and we're not using it anymore . . " A foolish Constitutional inconsistency is the hobgoblin of freedom, adored by judges and demagogue statesmen. - Steve Schear

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Idea: Homemade Passive Radar System (GNU/Radar)
by Thomas Shaddack 11 Aug '03

11 Aug '03

The current developments in international politics, mainly the advent of rogue states attacking sovereign countries from air, causes a necessity of proliferation of cheap air defense solutions. Key part of air defense is the awareness, usually maintained by a network of ground radar stations. In the end of 50's, Czech Republic developed a passive radar system called PRP-1/Kopac (Korelacni Patrac, Correlation Seeker), which was later replaced by more advanced system Ramona and even more advanced Tamara. Then the Revolution came, bringing the inevitable international pressures that led to the bankrupcy of the Tamara developer company, following false indictments of its top managements which lead to revocation of the company's arms sale licence. Shortly after this, articles in the world press appeared about "groundbreaking" passive radar system being developed by - guess who? Lockheed. (After "15 years of research", good part of which consisted from reverse-engineering of seized shipment of I am not sure if Ramonas or Tamaras.) See also http://www.techtydenik.cz/tt1998/tt10/panoram5.htm The system allows locating and identification of aerial, ground, and (when installed on the shore) sea-based EM sources. The passive radar system consists from four main parts. Three are wideband receivers, listening for any characteristical transmitting activity. They talk to the fourth one, where a correlator is located - an electronic system calculating the position of the signal sources from the differences of times when the listening posts received their signals. The civilian sector electronics is developing fast; component prices fall down, computing power goes up, anybody can buy a machine that just few decades ago would make everyone in Pentagon salivating. Naturally, this opens interesting possibilities. The threat rogue states with overwhelming air force pose to other countries makes it a necessity to develop a cheap, open passive radar system, effectively bringing a key part of air defense down to easy affordability on a municipiality level. Let's call it GNU/Radar. We need the four stations: three listening ones, and the correlating one. The correlating station (CS) may be built as a MOSIX or Beowulf cluster. Its job is to handle signals from LPs, identifying the targets, and tracking their position. The listening posts (LPs) need a receiver - a suitably wideband one, a digitizer (a fast ADC card), optionally a DSP board to take some calculations off the shoulders of the CPU, a source of precise timebase for synchronizations (may be a GPS, which also provides information about the location of the listening post which is what the CS needs to know, or may be a receiver of a time synchronization signal broadcasted from somewhere if we want a backup for case of GPS being shut down. The receiver may be possibly adapted from the GNU/Radio project. The timing pulses can be also delivered optically, eg. by a modification in the Ronja unit mentioned later. The LPs crunch the received signals, isolate the interesting-looking ones, mark the precise moments of their reception, and send their arrival times and key characteristics to CS. The transmission channel may be anything with sufficient bandwidth - from an Internet leased line to Ronja-based 10Mbps optical links in case of direct visibility between LPs and CS. As an active twist, we can also use a separate unit, Illuminating Transceiver (IT), periodically broadcasting a pulse of known characteristics, easy to recognize by the LPs when it bounces from an aerial target. This unit has to be cheap and expendable - it's easy to locate and to destroy by a HARM missile. As a bonus, forcing the adversary to waste a $250,000+ AGM-88 missile on a sub-$100 transmitter may be quite demoralizing. There can be a whole hierarchy of ITs; when one of them transmits, the other ones sleep - when the transmitting one is destroyed, one of the sleeping units wakes up and continues in illuminating the airspace. This is within reach of capabilities of a simple microcontroller. Even other sources can serve as involuntary ITs. The landscape is littered with cellular base stations and civilian TV and radio transmitters. Just pick the suitable frequency and listen on. Remember that Kopac was built about 50 years ago, on vacuum tubes. It should be far from impossible to replicate it with contemporary COTS electronics. Using lower frequencies than the gigahertz band usual for modern military radars reduces accuracy, but also dramatically reduces the effectivity of aircraft stealth features. There are already prototype results in this field: http://www.wired.com/news/print/0,1294,16762,00.html Some other sources: http://ronja.twibright.com/ http://slashdot.org/articles/01/06/11/1617239.shtml Opinions, comments, ideas?

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Re: Idea: Homemade Passive Radar System (GNU/Radar)
by Major Variola (ret) 11 Aug '03

11 Aug '03

At 05:04 PM 8/11/03 +0200, Thomas Shaddack wrote: > This unit has to be cheap and expendable - it's easy to >locate and to destroy by a HARM missile. As a bonus, forcing the adversary >to waste a $250,000+ AGM-88 missile on a sub-$100 transmitter may be quite >demoralizing. Microwave ovens were used in the Yugo war for this. The invading air power can't ignore the ISM band because then you could use it for real missile trackers. Someone who can do vacuum and welding work could change the output freq of an oven magnetron, by changing the shorting-strap connections.

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Re: The Register - NSA proposes backdoor detection center (fwd)
by Major Variola (ret) 11 Aug '03

11 Aug '03

At 06:36 AM 8/11/03 -0500, Jim Choate wrote: >http://www.theregister.co.uk/content/55/32265.html >>Wolf also said that untrustworthy hardware poses a similar threat. "Most microelectronics fabrication in the USA is rapidly moving offshore," said Wolf. "NSA is working on a Trusted Microelectronics Capability to ensure that state-of-the-art hardware devices will always be available for our most critical systems.<< Only way they can do that is to build it themselves, from HDL to GDSII and make their own masks. You can't prove a function doesn't exist in some box otherwise, if you don't know the trigger. Kinda like a PRNG and its key.

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Re: [eff-austin] Antispam Bills: Worse Than Spam?
by Peter Fairbrother 11 Aug '03

11 Aug '03

Peter Harkins wrote: > On Tue, Aug 05, 2003 at 07:06:46PM -0700, mindfuq(a)comcast.net wrote: >> The state must protect my freedom of speech. So when I make a claim >> against AOL for conducting a DoS attack against me, the state must >> rule in my favor, or else they are failing to protect my free speech >> rights. > > OK, for anyone who wasn't sure, it's time to stop feeding the trolls. > Troll or not, if AOL censored email in the UK* it would be illegal interception. 2 years for every interception. IMO, that's the only good thing to come from the RIP Act (the one with not-(yet)-implemented GAK). Freedom to do your own thing is great, but what if the baby bells refused to connect you to another baby bell? The benefits of a unified 'phone service are such that legislation prevents baby bells doing that, and most of us would agree with that legislation. IMO, email should be similar. But it don't solve the spam problem :-( -- Peter Fairbrother *They do censor UK email, but they do it in the US. The relevant legal phrase is "public telecommunications service provider", not "common carrier". If you offer a telecomms service (eg email) to the public in the UK then you are a PTSP, and RIPA applies to you. No choice.

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The Register - NSA proposes backdoor detection center (fwd)
by Jim Choate 11 Aug '03

11 Aug '03

http://www.theregister.co.uk/content/55/32265.html -- ____________________________________________________________________ We are all interested in the future for that is where you and I are going to spend the rest of our lives. Criswell, "Plan 9 from Outer Space" ravage(a)ssz.com jchoate(a)open-forge.org www.ssz.com www.open-forge.org --------------------------------------------------------------------

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RE: [eff-austin] Antispam Bills: Worse Than Spam?
by Vincent Penquerc'h 11 Aug '03

11 Aug '03

> Nice! I've been thinking I should move there for a while. I also > heard that by 2006 London and all the major cities will have seemless > wifi coverage. The reason Europe is on the ball with this is the EU We're on the way. We already have seemless camera surveillance coverage. -- Vincent Penquerc'h

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Cypherpunks List Info
by cpunk＠lne.com 10 Aug '03

10 Aug '03

Cypherpunks Mailing List Information Last updated: Sep 12, 2002 This message is also available at http://www.lne.com/cpunk Instructions on unsubscribing from the list can be found below. 0. Introduction The Cypherpunks mailing list is a mailing list for discussing cryptography and its effect on society. It is not a moderated list (but see exceptions below) and the list operators are not responsible for the list content. Cypherpunks is a distributed mailing list. A subscriber can subscribe to one node of the list and thereby participate on the full list. Each node (called a "Cypherpunks Distributed Remailer", although they are not related to anonymous remailers) exchanges messages with the other nodes in addition to sending messages to its subscribers. A message posted to one node will be received by the list subscribers on the other nodes, and vice-versa. 1. Filtering The various CDRs follow different policies on filtering spam and to a lesser extent on modifying messages that go to/from their subscribers. Filtering is done, on nodes that do it, to reduce the huge amount of spam that the cypherpunks list is subjected to. There are three basic flavors of filtering CDRs: "raw", which send all messages to their subscribers. "cooked" CDRs try to eliminate the spam on that's on the regular list by automatically sending only messages that are from cypherpunks list subscribers (on any CDR) or people who are replying to list messages. Finally there are moderated lists, where a human moderator decides which messages from the raw list to pass on to subscribers. 2. Message Modification Message modification policy indicates what modifications, if any, beyond what is needed to operate the CDR are done (most CDRs add a tracking X-loop header on mail posted to their subscribers to prevent mail loops). 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