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Re: ... civil timekeeping meeting (RISKS-26.92,93,98,27.01)
by Steve Allen 31 Aug '12

31 Aug '12

> And the people who don't like leap seconds or find them hard to deal > with can switch to TAI, which already exists. Need a cheap local > source of TAI? Get a GPS. And start setting up an NTP network of TAI > timeservers -- anyone doing this yet? People are doing this. Several manufacturers of NTP servers allow an option where it can *violate the NTP spec* and provide GPS time or TAI instead of UTC. Alternatively, the IEEE 1588 spec for PTP is all about this notion of an operational system time scale based on TAI. Alas, many international agencies responsible for this subject do not have scope of purview to make pronouncements on this subject, and the proceedings of various meetings do not show consensus. During the past decade the pronouncements from the providers of TAI at BIPM have done an about face. In 1999 the CCTF wrote saying yes, use TAI instead of UTC: The CCTF recommends, therefore, that in conformity with this ITU Recommendation developers of future satellite navigation systems and electronic communication systems should link their time scales to TAI as the only alternative to UTC and that, insofar as it is feasible, existing systems take steps to align their time scales with TAI. http://ursiweb.intec.ugent.be/A_97-99.htm But in 2007 the CCTF wrote quite the opposite, saying no, do not use TAI instead of UTC: TAI is the uniform time scale underlying UTC, and that it should not be considered as an alternative time reference. http://www.bipm.org/cc/CCTF/Allowed/18/CCTF_09-27_note_on_UTC-ITU-R.pdf TAI also does not serve POSIX, which specifies that the time_t is based on a trivial relationship to the face-value of UTC and that all days must have 86400 seconds. Unfortunately for POSIX the entire point of the UTC used in radio broadcast time signals since 1972 is that the second is not related to the day. From a system engineering standpoint it makes sense to use TAI, but its providers do not clearly agree. Furthermore, it is not possible to use TAI in an operational system because its value is not available until the next month. Using GPS system time is an available good choice from an engineering standpoint, but GPS does not have international standard status required by some contractual specifications. The previous meeting on the future of UTC re-visited many of these subjects. The final paper at that meeting gave a worked example of using leap-free uniform atomic time (GPS or TAI) for POSIX while still retaining the notion of UTC day defined by earth rotation. Slides and preprints of the 400 pages proceedings are available at http://www.cacr.caltech.edu/futureofutc/2011/index.cfm Steve Allen, UCO/Lick Observatory--ISB, 1156 High Street, Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ +1 831 459 3046 <sla(a)ucolick.org> ------------------------------

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This List Is Terrorist
by John Young 31 Aug '12

31 Aug '12

On Twitter @th3j35t3r, an alleged undercover informant, is claiming this list is an Al Qaeda affiliate based on Google hits of my posts to <bold>cypherpunks(a)al-qaeda.net </bold>. He and followers will paroxysm when Andy Greenberg's book is released on September 13, 2012: http://cryptome.org/2012/08/greenberg-leaks-secrets.pdf Be thankful the due date is not 9/11. The SEAL political PR stunt book release was moved from 9/13 to 9/7, continuation of the OBL/Al Qaeda political PR stunt begun in the 1970s, but latest installment now leaking copiously boosted by DoD threat of a law suit, and DoJ cessation of any CIA prosecution for the decades-long thriller, the agency's best ever, 100s complicit, 1000s dead, millions fooled, billions squandered. CIA sings joyously "tomorrow will always be 9/12."

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Hantavirus warning e-mails and letters
by Monty Solomon 31 Aug '12

31 Aug '12

Excerpt from 2 more Yosemite visitors have hantavirus http://www.usatoday.com/news/health/story/2012-08-30/yosemite-hantavirus-wa… Meanwhile, the park sent warning e-mails and letters on Wednesday to another 1,000 people who stayed in tent cabins in Curry Village, after officials found that a computer glitch had stopped the notices from going out with the original 1,700 warnings on Monday. The warning says anyone with flu-like symptoms or respiratory problems should seek immediate medical attention. ------------------------------

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[liberationtech] Request for comments - a #CryptoParty-oriented keysigning protocol
by Eugen Leitl 31 Aug '12

31 Aug '12

----- Forwarded message from Uncle Zzzen <unclezzzen(a)gmail.com> -----

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Re: [drone-list] monitoring reserve parks in DRC Congo
by Eugen Leitl 31 Aug '12

31 Aug '12

----- Forwarded message from Gregory Foster <gfoster(a)entersection.org> -----

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by JANEJOLANDA 31 Aug '12

31 Aug '12

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[drone-list] Apple rejects Drones+ iPhone app
by Eugen Leitl 31 Aug '12

31 Aug '12

----- Forwarded message from Gregory Foster <gfoster(a)entersection.org> -----

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Re: [HacDC:Byzantium] Byzantium Discovery PDF
by Eugen Leitl 31 Aug '12

31 Aug '12

----- Forwarded message from Ben Mendis <ben.mendis(a)gmail.com> -----

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Cryptic Seduction
by Alexander Huemer 30 Aug '12

30 Aug '12

Hi, this may be a weird request, but it is meant seriously. I am searching for the movie 'Cryptic Seduction', which _somehow_ has a similar background as this ML. Since I don't know where to ask otherwise, I am asking here. If anybody has a hint for me, thanks in advance. Kind regards, -Alex

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Trapwire surveillance system exposed in document leak
by Eugen Leitl 30 Aug '12

30 Aug '12

http://www.guardian.co.uk/world/2012/aug/13/trapwire-surveillance-system-ex… Trapwire surveillance system exposed in document leak Papers released by WikiLeaks show US department of homeland security paid $832,000 to deploy system in two cities Charles Arthur, technology editor guardian.co.uk, Monday 13 August 2012 19.04 BST CCTV Trapwire uses data from CCTV networks to figure out the threat level. Photograph: Martin Bureau/AFP/Getty Images It sounds like something from the film Minority Report: a CCTV surveillance system that recognises people from their face or walk and analyses whether they might be about to commit a terrorist or criminal act. But Trapwire is real and, according to documents released online by WikiLeaks last week, is being used in a number of countries to try to monitor people and threats. Founded by former CIA agents, Trapwire uses data from a network of CCTV systems and numberplate readers to figure out the threat level in huge numbers of locations. That means security officials can "focus on the highest priorities first, taking a proactive and collaborative approach to defence against attacks," say its creators. The documents outlining Trapwire's existence and its deployment in the US were apparently obtained in a hack of computer systems belonging to the intelligence company Stratfor at the end of last year. Documents from the US department of homeland security show that it paid $832,000 to deploy Trapwire in Washington DC and Seattle. Stratfor describes Trapwire as "a unique, predictive software system designed to detect patterns of pre-attack surveillance and logistical planning", and cites the Washington DC police chief mentioning it during a Senate committee hearing. It serves "a wide range of law enforcement personnel and public and private security officials domestically and internationally", Stratfor says. Some have expressed doubts that Trapwire could really forecast terrorist acts based on data from cameras, but Rik Ferguson, security consultant at Trend Micro, said the software for such systems had existed for some time. "There's a lot of crossover between CCTV and facial recognition," he said. "It's feasible to have a camera looking for suspicious behaviour b for example, in a computer server room it could recognise someone via facial recognition or your gait, then can identify them from the card they swipe to get in, and then know whether it's suspicious if they're meant to be a cleaner and they sit down at a computer terminal." The claims might seem overblown, but then the idea that the US could have an international monitoring system seemed absurd until the discovery of the Echelon system, used by the US to eavesdrop on electronic communications internationally. Trapwire has not yet commented on the leak.

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