December 2003 - cypherpunks-legacy

[ANNOUNCEMENT] Secure envelopes
by mixmaster＠remail.obscura.com 17 Dec '03

17 Dec '03

Timothy C. May's aberrant sexual life has negatively impacted his mental integrity. /\ o-/\ Timothy C. May ///\|/\\\ / /|\ \

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Re: The Upcoming DES Challenge
by Lucky Green 17 Dec '03

17 Dec '03

At 06:56 PM 1/6/97 -0800, Mike Duvos wrote: >Peter Trei (trei(a)process.com) writes: > >Ick. Why overly complexify things? A known plaintext attack >would be far more straightforward. After all, the goal is to >recover the key, not the message. Having to find a key which >decrypts to something having all high bits clear will discourage >people who might want to take a crack at this independent of the >canned program you are going to distribute. I agree. A real life crack of DES can almost always assume a know plain text. Why should the demo crack take the 10% hit? >[snip] > > > It will NOT run as a screen saver. > >Too bad. The screensaver paradigm is something the unwashed >masses can easily understand. I have been running the distributed prime search software (see my .sig) for about two months now. [2^1398269-1 is prime!] If you haven't tried this software, I'd urge you to do so now. Not only because it might make you famous, but because it will give you some ideas how a distributed DES crack might work. I always liked the screen saver idea, but a crack using screen savers only works while the screen saver is active. The mersenne prime program runs on the lowest priority thread under Win95/NT/Linux. It works even while you are working, using all the idle cycles it can find, while at the same time having no effect at all on any of the work you do. Install it and forget about it. It's better than a screen saver. -- Lucky Green <mailto:shamrock@netcom.com> PGP encrypted mail preferred Make your mark in the history of mathematics. Use the spare cycles of your PC/PPC/UNIX box to help find a new prime. http://www.mersenne.org/prime.htm

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Re: High-tech tracking by police raises legal outcry
by jim bell 17 Dec '03

17 Dec '03

At 06:39 AM 1/6/97 -0600, Mike McNally wrote: >Secret Squirrel wrote: >> >> The technology, marketed by a company called Teletrac, is simple: >> A tramsmitter sends a radio signal to a computer ... > >Anybody know the frequencies used? > >(Anybody willing to guess whether the FCC might quietly introduce >prohibitions against scanners that can receive those frequencies?) > >(Gee, that looks paranoid.) This wouldn't do a great deal of good. The systems were already described as frequency-hopping. The hops are probably fast enough to outwit a scanner's receiver. However, it turns out that there is a comparatively simple way to detect such transmitters: An old-fashioned diode detector using modern components. Take a loop of wire (about a foot in diameter), add a microwave-capable signal diode to rectify the signal and send it to a small capacitor and then go to a DVM. (digital voltmeter.) (Sensitivity can be dramatically increased by also inserting a blocking capacitor in the loop and adding enough DC voltage to barely forward-bias the diode.) A momentary (or continuous) increase in output voltage indicates that the diode is rectifying AC, which indicates a transmitter. Buffering the DC-level signal and sending it to a set of earphones will indicate a pulsed transmitter. Interestingly, this is probably more or less the circuit that was originally used in 1970's Fuzzbuster-type radar receivers before the heterodyne systems were developed. The "disadvantages" of that circuit, in microwave-radar detection, are either not disadvantages or are in fact advantages in hidden-transmitter hunting. The first "disadvantage" was that this receiver was EXTREMELY broadband, practically "DC-to-daylight," or at least up to the rectification capability of the diode chosen. (I've implemented systems that will do 20 gigahertz easy, and I was using old diodes!) False triggers were a common result, due to hard-to-avoid rectification of CB and ham radio transmissions for example. In the case of transmitter hunting, that disadvantage is a solid advantage, because you don't need to know what frequency the transmitter is at. The second disadvantage, comparatively low sensitivity, was a problem if you're trying to detect a 100 milliwatt radar transmitter 300 meters away, but if you know you only have to search a car from a meter away, the inverse-square law indicates that you're going to see a signal with around 100,000 times the power level all other things being equal. Jim Bell jimbell(a)pacifier.com

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Re: The Upcoming DES Challenge
by pgut001＠cs.auckland.ac.nz 17 Dec '03

17 Dec '03

Orbital mind control lasers made mpd(a)netcom.com (Mike Duvos) write: >Peter Trei (trei(a)process.com) writes: >>1. I'm astonished at the low level of reaction RSA's announcement that they >>will be sponsoring a DES Challenge, with a $10,000 cash prize. >I'm certainly jumping up and down and cheering. I said a while back that the >life expectancy of DES would be about two weeks if anyone forked over serious >cash. I'm still a bit nervous about what the reaction will be though - won't the US government (and anyone else pushing DES) be able to say "It took 10,000 Pentiums several weeks, noone would bother doing that, so it's safe" (with a possible side order of "Safer-SK64 is 256 times as secure, anyone we really like can use that provided they hand over the keys in advance"). Peter.

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No Subject
by Success＠midlex.com 17 Dec '03

17 Dec '03

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Special Discount for Pathfinder Users
by beta＠eb.com 17 Dec '03

17 Dec '03

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Partner with Dr's to Earn a Dr's Salary
by robbieg＠mich.com 17 Dec '03

17 Dec '03

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FTC Online Privacy Report
by John Young 17 Dec '03

17 Dec '03

The Federal Trade Commission released yesterday: "Consumer Privacy on the Global Information Infrastructure" http://www.ftc.gov/bcp/conline/pubs/privacy/privacy1.htm Reuters 1-6-97: The Federal Trade Commission, which last year held a conference on privacy issues, said participants at the gathering agreed that businesses have four ways to protect consumer privacy: -- Notify consumers about how personal information collected online is used. -- Give consumers a choice about whether and how their personal information is used. -- Ensure the security of personal information is protected. -- Give consumers access to their own personal information to ensure its accuracy.

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Internet Draft : keyserver protocol
by David K. Merriman 17 Dec '03

17 Dec '03

-----BEGIN PGP SIGNED MESSAGE----- Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit To: coderpunks(a)toad.com Date: Tue Jan 07 08:15:10 1997 My proposal for a realtime keyserver protocol/system has been made available. I would welcome any comments/discussion regarding it. It may be found at: ds.internic.net/internet-drafts/draft-merriman-realtime-key-00.txt Dave Merriman -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMtGxtMVrTvyYOzAZAQFsVQP+LpTOyQjdNH3dMpUBG0DMHQ8jIM+cENs+ nK+r/9uKYAWKHkTwENNHwIn9mwxKi2GhgnXdJf7zUMdkNgK2w6Im7yOHzMhsZFfm KQJlY+qzQbNOdf+LjOnbhy16u0h/0zgP6+NzITFqeXOToGC9KkImWmdaROe+enIX 3v1LYz4jHEM= =tIT+ -----END PGP SIGNATURE-----

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Re: Double crypt strength
by Rick Osborne 17 Dec '03

17 Dec '03

At 04:33 PM 1/6/97 -0800, Toto wrote: > Pardon my ignorance, but I seem to be missing something here. > If you use an encryption as your password, do you not need to 'store' >it somewhere in order to use it in the future (to 'pass' it to the >decryption program)? I was thinking something as simple as running crypt and then the next thing you do is run passwd. That way, the encrypted string will probably still be right there on the screen (assuming your passwd util doesn't clear the screen first). Granted, it still means that you have to remember a pseudo-random string, but the string is always one step away if you used a logical password/phrase to generate it. Sorry, I guess I wasn't too clear on that (fingers can't keep up with the mind and all that...) -Rick Rick Osborne / osborne(a)gateway.grumman.com / Northrop Grumman Corporation ------------------------------------------------------------------------- "And when exactly did all this happen?" 'When we rewrote the dictionary.'

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