December 2003 - cypherpunks-legacy

testing WPGP
by jim bell 17 Dec '03

17 Dec '03

-----BEGIN PGP SIGNED MESSAGE----- I'm trying to test out version 1.5.0.10 of the program WPGP that I downloaded a day ago. So far, I am able to sign messages and (probably?) encrypt them, but decrypting fails me. Below is my 1024-bit public key; could somebody verify the proper signing, and send something encrypted to me? (Also include your public key and I'll see if I can successfully reply.) - -----BEGIN PGP PUBLIC KEY BLOCK----- Version: 2.6.2 mQCNAi1zvWcAAAEEAKmSqngLWK2N2gOJKPtjF9VCfSkXY+XUZBRCbbFU71uH/dLX C2Uq6wFS8alRgMc3rp90JnnJ/6eJqXwMjCunogwucWOaU7S/w+OwjOG9fUqsXIA6 2j25Wtjce65mbp0TKLAzwMb/P/Qq7BlclqhuKzfVBH7dIHnVAvqHVDBboB2dAAUR tBFKYW1lcyBEYWx0b24gQmVsbA== =G3LA - -----END PGP PUBLIC KEY BLOCK----- -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMOzCPvqHVDBboB2dAQGHDgP6ApIYzoZs2LBK5c8p3H+BHzMevgf2zuWy oTt9kiMrirrzsZQ+aGfKTEk3HaEcg9c2bgbM4JjfeZQLXI53edYl5DNuh4newvry PwRLf7eYOtPsxfEMAsmcJkuiwvk1czOZZ/fW+dK5mbsZQ/c5fgcWILvFuey9uOd2 lZ7zqD/Kt54= =/qXq -----END PGP SIGNATURE-----

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Three recent posts on usenet about getting far hex digits of pi.
by Jay Sulzberger 17 Dec '03

17 Dec '03

For Timothy C. May and all the cypherists on this list: Here are three recent posts to usenet on the beautiful, and partly new results on getting digits far out in pi, without explicitly getting all the nearer to the heximal point digits. > From sci.math Wed Dec 20 05:16:17 1995 > Path: panix!news.denver.eti.net!imci3!imci2!newsfeed.internetmci.com!uwm.edu!msunews!netnews.upenn.edu!red.seas.upenn.edu!jimmosk > From: jimmosk(a)red.seas.upenn.edu (Jim J Moskowitz) > Newsgroups: sci.math > Subject: nth digit of pi calculable? > Date: 18 Dec 1995 03:29:08 GMT > Organization: University of Pennsylvania > Lines: 29 > Message-ID: <4b2n64$s27(a)netnews.upenn.edu> > NNTP-Posting-Host: red.seas.upenn.edu > Status: RO > X-Status: > > I've seen the recent reports about the discovery of a formula for pi > of the form > infinity > ----- > \ (- n) / 4 2 1 1 \ > ) 16 (------- - ------- - ------- - ------- ) > / \8 n + 1 8 n + 4 8 n + 5 8 n + 6 / > ----- > n = 0 > > which is said to tell you in a simple manner what the nth digit in the > hexadecimal expansion of pi is. I don't see why. Yes, the ith term of > this series does include 16^-i, which is the ith place in said expansion, > but the term in parentheses (sorry; they look more like angle brackets) > isn't an integer, so it's not giving you the value of the number in that > ith place. Instead, it gives you several digits which are in places further > along in pi, with no guarantee that other terms in this sigma won't also > include digits in those places, forcing you to calculate and add up many > terms.... > > Taking an incautious plunge into the world of computational math, > Jim > > > -- > ----------------------------------------------------------------------------- > Jim Moskowitz (jimmosk(a)eniac.seas.upenn.edu) > Visit the Unknown Composers Page: > http://www.seas.upenn.edu/~jimmosk/TOC.html > > >From sci.math.pi Fri Jan 5 04:08:06 1996 > From sci.math Wed Dec 20 05:16:57 1995 > Path: panix!cmcl2!oitnews.harvard.edu!purdue!lerc.nasa.gov!magnus.acs.ohio-state.edu!math.ohio-state.edu!howland.reston.ans.net!newsfeed.internetmci.com!EU.net!peer-news.britain.eu.net!lyra.csx.cam.ac.uk!cet1 > From: cet1(a)cus.cam.ac.uk (Chris Thompson) > Newsgroups: sci.math > Subject: Re: nth digit of pi calculable? > Date: 18 Dec 1995 15:21:18 GMT > Organization: University of Cambridge, England > Lines: 46 > Message-ID: <4b40te$r02(a)lyra.csx.cam.ac.uk> > References: <4b2n64$s27(a)netnews.upenn.edu> > NNTP-Posting-Host: grus.cus.cam.ac.uk > Status: RO > X-Status: > > In article <4b2n64$s27(a)netnews.upenn.edu>, jimmosk(a)red.seas.upenn.edu > (Jim J Moskowitz) writes: > |> I've seen the recent reports about the discovery of a formula for pi > |> of the form > |> infinity > |> ----- > |> \ (- n) / 4 2 1 1 \ > |> ) 16 (------- - ------- - ------- - ------- ) > |> / \8 n + 1 8 n + 4 8 n + 5 8 n + 6 / > |> ----- > |> n = 0 > |> > |> which is said to tell you in a simple manner what the nth digit in the > |> hexadecimal expansion of pi is. I don't see why. Yes, the ith term of > |> this series does include 16^-i, which is the ith place in said expansion, > |> but the term in parentheses (sorry; they look more like angle brackets) > |> isn't an integer, so it's not giving you the value of the number in that > |> ith place. Instead, it gives you several digits which are in places further > |> along in pi, with no guarantee that other terms in this sigma won't also > |> include digits in those places, forcing you to calculate and add up many > |> terms.... > > You certainly have to add up a large number of terms. It is the ease with > which these terms can be computed that has attracted interest to this and > similar formulae. > > Think in terms of trying to find the fractional part of 16^N * pi to reasonable > accuracy, which is what is really meant by "finding the (N+1)'th hexadecmal > digit" here -- you might always get unlucky and find only that this fractional > part was between .2fffff and .300001, say. The terms with n >= N are of > absolute value less than 1, and form a rapidly converging series, so their > contribution is easy to compute. The term with n < N contribute terms of > the form > > fractional part ( 16^a(i) * b(i) / i ) > > where i < 8N, a(i) < N, and the b(i) are small integers. So it is sufficient > to compute 16^a(i) mod i. If you don't already know, you can find out how to > do this in time logarithmic in a(i) in, say, Knuth ACP Vol 2. > > This is all explained in detail in the Borwein/Borwein/Plouffe paper, available > from http://www.cecm.sfu.ca/~pborwein/PAPERS/P123.ps, which should be pretty > comprehensible even by an amateur. > > Chris Thompson > Email: cet1(a)cam.ac.uk > > >From sci.math.pi Fri Jan 5 04:08:06 1996 > From sci.math Wed Dec 20 05:17:20 1995 > Path: panix!bloom-beacon.mit.edu!gatech!psuvax1!news.math.psu.edu!chi-news.cic.net!uwm.edu!lll-winken.llnl.gov!apple.com!apple.com!not-for-mail > From: rjohnson(a)apple.com (Robert Johnson) > Newsgroups: sci.math > Subject: Re: nth digit of pi calculable? > Date: 19 Dec 1995 13:01:28 -0800 > Organization: Apple Computer, Inc., Cupertino, California > Lines: 57 > Message-ID: <4b7978$cj1(a)apple.com> > References: <4b2n64$s27(a)netnews.upenn.edu> > NNTP-Posting-Host: apple.com > Status: RO > X-Status: > > > In article <4b2n64$s27(a)netnews.upenn.edu>, > Jim J Moskowitz <jimmosk(a)red.seas.upenn.edu> wrote: > >I've seen the recent reports about the discovery of a formula for pi > >of the form > > infinity > > ----- > > \ (- n) / 4 2 1 1 \ > > ) 16 (------- - ------- - ------- - ------- ) > > / \8 n + 1 8 n + 4 8 n + 5 8 n + 6 / > > ----- > > n = 0 > > > >which is said to tell you in a simple manner what the nth digit in the > >hexadecimal expansion of pi is. I don't see why. Yes, the ith term of > >this series does include 16^-i, which is the ith place in said expansion, > >but the term in parentheses (sorry; they look more like angle brackets) > >isn't an integer, so it's not giving you the value of the number in that > >ith place. Instead, it gives you several digits which are in places further > >along in pi, with no guarantee that other terms in this sigma won't also > >include digits in those places, forcing you to calculate and add up many > >terms.... > > The full article can be found in PostScript form at > > http://www.cecm.sfu.ca/personal/pborwein/PAPERS/P123.ps > > and a text announcement can be found at > > http://www.mathsoft.com/asolve/plouffe/scimath.txt > > Yes indeed, you have to add up many terms. However, the amount of > computation to find the n^th digit is on the order of n. Whereas, > to compute n digits would require computation on the order of n^2. > > The idea that drastically reduces the work here is that it is very easy > to compute the n^th hex digit of 1/k. This is accomplished by raising > 16 to the n-1^st power modulo k. Dividing the remainder by k gives the > hex expansion of 1/k starting at the n^th hex digit. Raising 16 to the > n-1^st power modulo k is done by squaring and multiplying based on the > binary expansion of n-1 (the method of repeated squaring). > > Thus, to get 16^{-k} 4/(8k+1) starting at the nth hex digit, > compute 4*16^(n-1-k) mod 8k+1. Divide this remainder by 8k+1. > For example, take n = 1000000000 and k = 1257894: > > 4*16^998742105 mod 10063153 = 4894450 > > and 4894450/10063153 = .7C82F7B089CCA729... (hex) > > It will still entail around billion terms to compute the billionth > digit of pi, but that's better than computing a quintillion digits. > > Rob Johnson > Apple Computer, Inc. > rjohnson(a)apple.com > > >

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Re: Windows Eudora and PGP
by David K. Merriman 17 Dec '03

17 Dec '03

-----BEGIN PGP SIGNED MESSAGE----- - -----BEGIN PGP SIGNED MESSAGE----- At 07:46 PM 01/3/96 -0500, Douglas F. Elznic" <delznic(a)storm.net> wrote: ... <deletia regarding PGP and Eudora> ... >I have heard that their are alpha releases currentky geing worked on at >quest/qualcomm. But i would have to say before they come out your best bet >to pgp and eudora is either pidaho or just use it in dos. pidaho is a great >front end. A lot better than any others out their. > > I have also heard that ViaCrypt is a good alternative. But I am not sure. >Has anyone else out there heard anything good/bad about ViaCrypt? I've gotten ahold of the WPGP mentioned here a couple days ago, and it seems to be working just fine, for me. Even easier to use than PIdaho, though not quite as 'full-featured' (ie, remailer support, etc). Using it to sign this message, FWIW :-) - - -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMOwCBMVrTvyYOzAZAQGpVgQApdkjY9KoiI4TYhd6h8at6R1DfEFldE0M y9iY3lcUjGuCn6RASVUxbDXVYWtbeCPGveaAfIri6ccM2Fcw6WboS2YXM7Xmpubr 7j6o48IwKB0YZadwtxRXQWddE3RUwbIa52xmmywdlshLGy7IEAJ+NHgrlZZk/sdR SilciAe65Hs= =0izb - - -----END PGP SIGNATURE----- - -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMOwCPsVrTvyYOzAZAQEjzAP/bEK4Q/uJgbXY9/HMp+Cu1YF/1x1/tlI5 T3b1Vb4WvsZCUbGlMzqzNKFO6qJoMxGGQoVi3LzWixGEVeaD93QJGQXtR3p/v2HS fogEk5bVFr6+ljreuhLDhl4sQpNx+fnibXg013zb2dKv0btwTst+vh7Vm1vYZ84T uJFMVZPxL+I= =xUTN - -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMOwCasVrTvyYOzAZAQFY5wP9HdMiDu1cqShuz6GPjNNzNwtEbXaxfDsQ sWZq0tcSkIVaY7vix8X02PxV7tqMqdbyBBnO9n6unRhitJfuTtJ1Fh7lGB/6/TtU o2/7510JcwyfVXB3Lb6tenvu0G9aQrkGqzoHcSXr854GzsU2KfjGEM9l9xpczj+B O5wiYXU00yc= =tkkz -----END PGP SIGNATURE----- ------------------------------------------------------------- "It is not the function of our Government to keep the citizen from falling into error; it is the function of the citizen to keep the Government from falling into error." Robert H. Jackson (1892-1954), U.S. Judge <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> My web page: http://www.geopages.com/CapitolHill/1148

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ZAP_law
by John Young 17 Dec '03

17 Dec '03

1-5-96. W$Jaw: "High Tech Zaps German Privacy Laws. CompuServe Case Shows Difficulty of Enforcement." The growing popularity of the Internet and other multimedia services poses a major challenge to Germany's tough data-protection legislation. The personal information that is freely given and used for marketing purposes in the U.S. is off limits in Germany. The CompuServe case demonstrates just how difficult it is becoming for national regulators to control the flow of information. This is particularly true in Germany, where a raft of legislation is in force designed to avoid-any repeat of the Nazi-era abuse of data, as well as the dissemination of pornography and extremist propaganda. The nation's internal security services are already struggling to combat the sophisticated use of computers by neo-Nazi groups. Following a recent ban on several such organizations, right-wing extremists have been sending coded messages of racial hatred to one another through a system of computer mailboxes known as the Thule network. "CompuServe Seeks a High-Tech Answer To Fracas Over Bar on Adult Material." Industry executives said the move sets a bad precedent that could invite still more countries to demand their own diverging standards of what is acceptable. Critics further maintained that the approach simply won't work. In addition, critics voiced concern that CompuServe's efforts will lead to on-line services being forced to take responsibility for information they didn't create. 1-5-95, WashPo: "Worldwide Net, Worldwide Trouble" [Editorial] The borderless quality of the Internet, one of its great strengths, can now be seen also as a source of unprecedented and unnerving international liability. Just as "community standards" were used in Tennessee to prosecute two California-based bulletin board operators on obscenity charges a few years back, big commercial providers like CompuServe or America Online could find themselves facing charges based on the very different legal systems of a Germany or France or, for that matter, an Iran. Trio: ZAP_law

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ISD_eny
by John Young 17 Dec '03

17 Dec '03

1-5-96. NYP: "2 Large Phone Companies Seek Higher Digital Rates. Critics See Damage to a Fast Internet Link." The proposal has angered people who use the ISDN service to work from home. Phil Karn, an engineer at Qualcomm, argued that the new tariff would cost him about $100 more a month. He said he was upset by the proposal to lift rates and was anxious to switch to cable service when it became available. ISD_eny --------- On cable modems: the 12-27 W$J reported on a test at Boston College, and provided comparisons with other systems. GEY_ser

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Market Earth Wins Another
by Duncan Frissell 17 Dec '03

17 Dec '03

NEW YORK (Reuter) - AT&T Corp. said Thursday that its embryonic online service AT&T Interchange Online Network would become part of the Internet's World Wide Web within a year instead of being a proprietary system. ``The Interchange platform as we know it will phase out over a year or so. That platform will be dissolved into the World Wide Web,'' Michael Kolowich, president of AT&T New Media Services told journalists on a conference call. AT&T said it would be able to take advantage of the best electronic commerce and navigation software for the Internet, most of which are not compatible with Interchange. In doing so AT&T is taking a leaf out of Microsoft Corp.'s book which in December changed tack to open its online service for free to Internet users. The move may be replicated in other online companies, analysts say. ****************** Now if Microsoft and AT&T can't fight open market information networks, what chance do the Feds have to impose their proprietary system on the Net? The Feds are even worse at marketing than AT&T. DCF "If AT&T owned KFC they'd advertize that they are selling 'hot, dead, chicken'. No, I'm afraid they'd advertize 'lukewarm, dead, chicken'." -- Stolen from Jerry Pournelle

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Re: Windows Eudora and PGP
by Bill Stewart 17 Dec '03

17 Dec '03

>>>1) Use cut-and-paste into Private Idaho. Private Idaho will allow you to >>>paste back into Eudora. (Or you can send out from Private Idaho directly.) >>>This option is useful becuase it supports nyms and chaining of remailers. ... >>[sigh] Just what I thought, no easy solutions. Private Idaho's pretty easy - if you're replying to a message, you'll need to do a cut&paste to move the original into PI, but it follows all the standard Windows cut&paste clipboard stuff, and after that you can send the message directly (from newer versions of PI) or pick a menu item that hands it back to your mailer (Eudora or several others are supported) for delivery. Inside PI, you can pick menu items to call PGP, add remailer headers, etc. At 07:46 PM 1/3/96 -0500, "Douglas F. Elznic" <delznic(a)storm.net> wrote: > I have also heard that ViaCrypt is a good alternative. But I am not sure. >Has anyone else out there heard anything good/bad about ViaCrypt? I've got the ViaCrypt Windows package, as well as their DOS versions. It's really nice for key management (which Private Idaho doesn't do much of), though some of the other PGP Windows frontends also do that. Its encryption/decryption/signing functions are mainly oriented towards files rather than Clipboards - the big advantage of this is that there aren't any silly 64KB or 640KB limits anywhere, but it's a bit clumsier. I usually use Private Idaho as a front-end to ViaCrypt as well; it's faster and prettier to have ViaCrypt handling the Windows interfaces than to have PI pop up a DOS window to run Real PGP in. The PGP 3.0 stuff, when it comes out, will help the process a lot. #-- # Thanks; Bill # Bill Stewart, stewarts(a)ix.netcom.com, Pager/Voicemail 1-408-787-1281 # # "The price of liberty is eternal vigilance" used to mean us watching # the government, not the other way around....

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Internet Gateway for Bletchly Park Trust
by pjb＠ny.ubs.com 17 Dec '03

17 Dec '03

I am trying to setup an Internet gateway for BP Trust. I will either convience Sun to donate a SparcStation for this purpose, or I will donate one myself. What I need is a contact in the UK for some ISPs, or a University or somesuch that would consider hosting their domain/address. Will anyone having any information that might be of use to me in this endevour please email me at: pjb(a)ny.ubs.com and/or pjb(a)23kgroup.com. I have just returned from a trip to BP, and there are many new and exciting things going on there. I will (RSN) post an article re: the current state of affairs at BP. Cheers, paul

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Re: Representations of Pi, etc.
by stevenw＠best.com 17 Dec '03

17 Dec '03

Tim May wrote: >In summary, I would be surprised to find that a method for calculating the >Nth digit of pi works for base N but not for base M (modulo some minor >efficiency factors related to machine architecture, etc.). > >Any pointers to this result would be appreciated. See Peter Borwein's home page: http://www.cecm.sfu.ca:80/personal/pborwein/ under _Calculating Pi and Other matters_. ------------------------------------------------------------------------- Steven Weller | "The Internet, of course, is more | than just a place to find pictures | of people having sex with dogs." stevenw(a)best.com | -- Time Magazine, 3 July 1995

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Using lasers to communicate
by tcmay＠got.net 17 Dec '03

17 Dec '03

At 5:43 PM 1/4/96, Jason Rentz wrote: >Previous exchanges deleted... >> >>With a tightly focused beam (light is easy, I don't know about lower >>frequencies), you can prevent interception except by very obvious physical >>devices. (e.g. Someone in a cherry picker truck.) You may be able to >>avoid the need to encrypt the link (and all the paranoia about key >>management, advances in factoring etc. that that implies.) >> >>Bill > >The problem with this comes when you start creating links between much >taller buildings like in San Fran. Any give building over 30 stories might >sway a foot or so at any given time. Combine that with the other building >and you might get a few feet of movement. (movement not including during an >earthquake) :) Just a couple of points on this optical idea. We were linking buildings a mile apart in the 70s, at Intel. We needed to ship CAD data back and forth, and PacBell rates for a dedicated line were outrageous, slow to be installed, etc. So, a commercially available laser and modulator/demodulator (modem, but it bears sometimes using the longer version, to remind people of what it is doing in general) were mounted on the roofs of our buildings. I'm sure various packages are commercially available to do this. As to buildings swaying in earthquakes, somehow I don't think transient loss of channel capacity during a quake is going to be a pressing concern! :-} Swaying in ordinary wind is an easily-handled problem. (Any good engineer can think of several fixes: paraboloidal dish receivers are cheap (not even optical quality, just to get light pulses), compensation for sway, acceptance of slightly reduced data rates as modem error correction handles sway-induced dropouts, movement of the transmitters and receivers to lower levels, etc.) Also, nearly all high-tech buildings (or at least more than 95% of all high-tech floorspace in the U.S.) are less than 3-4 stories tall; most are 1-2 stories. Building sway is nonexistent. And building sway only approaches the multiple meter level in the highest floors of the tallest buildings. I would guess that fewer than 1% of all offices are affected; for them, a lower data rate is acceptable. I'm actually more positive on low-level (below safety regs get interested in) light than on free space RF, for bypassing of the local cable/phone monopolies. There's just not enough "bandwidth of free space" available. Do the math. (Footnote: Some years back some of us got interested in the idea of using lasers to communicate between San Diego/Chula Vista and Tijuana. Ordinary phone lines turned out to be cheaper.) --Tim May We got computers, we're tapping phone lines, we know that that ain't allowed. ---------:---------:---------:---------:---------:---------:---------:---- Timothy C. May | Crypto Anarchy: encryption, digital money, tcmay(a)got.net 408-728-0152 | anonymous networks, digital pseudonyms, zero W.A.S.T.E.: Corralitos, CA | knowledge, reputations, information markets, Higher Power: 2^756839 - 1 | black markets, collapse of governments. "National borders aren't even speed bumps on the information superhighway."

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