- cypherpunks-legacy - lists.cpunks.org

Re: Need Suggestions for Random Numbers
by freeman＠MasPar.COM 17 Dec '03

17 Dec '03

> Also, can anyone recommend a statistical test for randomness, or > for detecting repeating patterns in a "random" file? Try using consecutive calls to your random-number generator to generate two-dimensional coordinate pairs, and plot them. That is, you do something like: for( i = 0; i < LOTS; ++i ) { x[i] = rand(); y[i] = rand(); } for( i = 0; i < LOTS; ++i ) { plot_point( x[i], y[i] ); } It's surprising how fast this will demolish many psuedorandom generators (and how good the eye is at pulling patterns out of plots). And as far as nominal sources of "white" noise, be careful to avoid contamination from 60-cycle power-line noise and its harmonics. Do a Fourier transform and look for peaks, for sure. I'm sure that the pros know lots of tricks like this. -- Jay "not a pro" Freeman

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Waa waa waa waa waah.
by Kent Hastings 17 Dec '03

17 Dec '03

Waa waa waa waa waah. I want to go to Krustyland! Anyway, if this escapes, be advised that hastings(a)courier8.aero.org is dead. Like you gave a rat's ankle in the first place. The Martians have shut down my X400 access. They probably couldn't take any more of this foolishness. As the most Homeric of philosophers would say: "Dhoh!" Looks like I'm forced to get Netcom now, but until then - "UNSUBSCRIBE." Thanks. I'll be back. Kent - <kent_hastings(a)qmail2.aero.org> for who knows how long.

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criminal gif upload
by nobody＠rosebud.ee.uh.edu 17 Dec '03

17 Dec '03

> ************************************************************ > ***VERY IMPORTANT*** Critical Files to Remove from Your BBS > ************************************************************ fuck that, just point me at them gifs. henh henh hmm hmm hmm.

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Re: Waa waa waa waa waah.
by plmoses＠unix.cc.emory.edu 17 Dec '03

17 Dec '03

UNSUBSCRIBE ME from this list. I know this is the "wrong" place to send it, but I have just spent the past 2 days sorting out 700+ cypherpunks messages that piled up while i was out of email range. _ I HAD some sympathy for the ideals of this project when I signed up, but now I am finding all the bickering and phoney legalese to be too much. The extensive post from EFF was the last straw. For God's sake, what purpose could it serve? Why not just type in all House debates on Clipper. Better yet, get an optical character reader and scan them in. Believe me, I have no interest in being told "how" I may communicate by the government. Thanks for the info and best of luck. Goodbye. - Paul

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Re: Chaum on the wrong foot?
by peter honeyman 17 Dec '03

17 Dec '03

> Can you post the references for these papers? sure. i got them from ftp.cwi.nl in directory /pub/CWIreports/AA/. CS-R9318.ps.Z is N. Ferguson "Single Term Off-Line Coins." it is 13 pp. CS-R9323.ps.Z is Stefan Brands "An Efficient Off-line Electronic Cash System Based On The Representation Problem." it is 77 pp. does anyone else have any digital cash papers on-line? peter

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I'm outta here
by abajian＠esca.com 17 Dec '03

17 Dec '03

Ditto Paul's post. I thought this would be interesting. Instead, it's eating disk with pointless noise. How about using my cypherpunks mailings as a random number generator? No, too many repeating patterns. I'll hang out on the notice list just in case the sky falls. Yeesh.

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Re: Crypto Idea, Multi-Party Sigs
by Karl Lui Barrus 17 Dec '03

17 Dec '03

Forcing all three people for signing the document can be done as by merely splitting the secret key into three parts. Then, all three must be used to reassemble secret key in order to sign the document. If both methods co-exist, then each individual can sign the document from information they know from being able to decrypt. Unless you go to a modified RSA system like Eric described. (it's much easier to force all three to sign and all three to decrypt :-) -- Karl L. Barrus: klbarrus(a)owlnet.rice.edu keyID: 5AD633 hash: D1 59 9D 48 72 E9 19 D5 3D F3 93 7E 81 B5 CC 32 "One man's mnemonic is another man's cryptography" - my compilers prof discussing file naming in public directories

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No Subject
by nobody＠rosebud.ee.uh.edu 17 Dec '03

17 Dec '03

At 1:04 PM 10/4/93 -0700, Hastings(a)courier8.aero.org wrote: >Maybe you >think messages posted to an international mail reflector are private? Time to start up those digital pseudonyms! Eternal!Optimist(a)anon.penet.fi

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Re: Need Suggestions for Random Numbers
by peter honeyman 17 Dec '03

17 Dec '03

> What PRNGs would you suggest using? i don't know, but my friend don mitchell knows about these things, and the last time i asked him about prngs he recommended that i check out marsaglia's paper in annals of applied probability v1n3 1991. peter

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Re: Chaum on the wrong foot?
by peter honeyman 17 Dec '03

17 Dec '03

yes, i am replying to a message that is six weeks old. hal, chaum may be barking up the wrong tree, but that doesn't mean that his students are. i read a couple of digital cash papers last night and was struck by this statement in one of them: Techniques have been developed that ... allow the construction of off-line electronic cash systems that are secure for the bank, yet at the same time honest users of the system are guaranteed to remain completely anonymous. This holds in a very strong sense: the security of banks is not compromised even if all users and shops collaborate in such an attempt, and the privacy of honest users cannot be violated in any cryptanalytic way even under adversarial behavior of the bank in coalition with all the shops. Stefan Brands, CWI this is very encouraging: digital cash technology is very far advanced, and offers almost everything you might want. (i think the jury is still out on the question of k-spendability.) but then there is the bad news: the mathematics and the protocols underlying the technology are still too complex to be practical. but there is also good news: much of the current work intends to simplify the protocols and to lessen the computational requirements of digital cash systems. peter

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