- cypherpunks-legacy - lists.cpunks.org

Aviation Instruments Encrypt Engine-Monitor Data
by Eugen Leitl 07 May '05

07 May '05

I guess vehicular embeddeds are next. Link: http://slashdot.org/article.pl?sid=05/05/07/1715229 Posted by: timothy, on 2005-05-07 17:17:00 from the must-be-in-the-public-interest dept. kitplane01 writes "Airplanes engines need to always work, and are monitored by engine monitors. JP Instruments' engine-monitor units have [1]begun to encrypt the data output of its monitors so it can't be read by third-party software. Whether this is to protect itself liability-wise or to discourage competitors is unclear. It seems the company is working on a fix, which may require a fee from users to translate the file format." References 1. http://www.avweb.com/newswire/11_18b/briefs/189696-1.html ----- End forwarded message ----- -- Eugen* Leitl <a href="http://leitl.org">leitl</a> ______________________________________________________________ ICBM: 48.07078, 11.61144 http://www.leitl.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE http://moleculardevices.org http://nanomachines.net [demime 1.01d removed an attachment of type application/pgp-signature which had a name of signature.asc]

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Re : I know what you wish for
by Gustavo Albert 07 May '05

07 May '05

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Re: Pi: Less Random Than We Thought
by Gil Hamilton 07 May '05

07 May '05

Sarad writes: >If you remember D.E Knuth's book on Semi-Numerical >Algorithms he shows some annoying subsequences of pi >in it which are far from random. I don't have Knuth's book handy to look at, but it's not really correct to speak of a particular sequence or subsequence of digits as being random or non-random. For example, is this sequence of bits random: 01100100010? How about this one: 0000000000? From a true random number generator, both are completely possible and equally valid. (Furthermore, I would contend that the digits of pi are *non-random* by definition.) >--- cypherpunk <cyphrpunk(a)gmail.com> wrote: > > This doesn't really make sense. Either the digits > > are random or they > > are not. You can't be a little bit random. Well, you > > can be, but the > > point is that you either pass the test or you don't. [snip] > > The bottom line is still that either an RNG passes > > the tests > > acceptably or it does not. From what they say (or > > don't say), pi does > > pass. It doesn't make sense to say that other RNGs > > do better. One can only do statistical analyses of sequences of digits to determine whether they *appear* to have a uniform distribution of individual digits and subsequences. Of course the result of such a test (positive *or* negative) doesn't positively confirm whether a given digit source is truly random. Wikipedia has a good article on randomness: http://en.wikipedia.org/wiki/Random GH _________________________________________________________________ Dont just search. Find. Check out the new MSN Search! http://search.msn.click-url.com/go/onm00200636ave/direct/01/

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Re: Pi: Less Random Than We Thought
by John Kelsey 06 May '05

06 May '05

>From: Sarad AV <jtrjtrjtr2001(a)yahoo.com> >Sent: May 5, 2005 8:43 AM >To: cyphrpunk(a)gmail.com >Cc: cypherpunks(a)al-qaeda.net >Subject: Re: Pi: Less Random Than We Thought Well, if it were generated by a random process, we'd expect to see every n-bit substring in there somewhere, sooner or later, since the sequence never ends or repeats. Thus, the wonderful joke/idea about selling advertising space in the binary expansion of pi. Not only will your message last forever, but it will be seen by any advanced civilization that develops math and computers, even ones in other galaxies. --John

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More sexual confidence. More sex. More fun.
by Lyman Lang 06 May '05

06 May '05

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Vladivostok Courier - in-depth article pertaining christianity and dating
by Eugenio Romo 06 May '05

06 May '05

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[FoRK] Does the web have a public timestamper? (fwd from deafbox@hotmail.com)
by Eugen Leitl 06 May '05

06 May '05

----- Forwarded message from Russell Turpin <deafbox(a)hotmail.com> -----

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[IP] Google's Web Accelerator is a big privacy risk (fwd from dave@farber.net)
by Eugen Leitl 06 May '05

06 May '05

----- Forwarded message from David Farber <dave(a)farber.net> -----

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EFF event on Tor, San Francisco, May 10 (fwd from arma@mit.edu)
by Eugen Leitl 06 May '05

06 May '05

----- Forwarded message from Roger Dingledine <arma(a)mit.edu> -----

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Re: Pi: Less Random Than We Thought
by Sarad AV 06 May '05

06 May '05

--- Tyler Durden <camera_lumina(a)hotmail.com> wrote: > > Let us remember, of course, that the digits of "pi" > are not random > whatsoever: they are the digits of pi! "Random is in > the eye of the > beholder." > -TD Exactly. What an algorithm gives out is always deterministic. We try to see if there is some structure that allows us to cryptanalyze it. Sarad. __________________________________ Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses. http://promotions.yahoo.com/new_mail

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