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February 16 2014


January 07 2014



Bei calc.pw handelt es sich um DIY Hardware, mit deren Hilfe man Passwörter aus einem Masterpasswort und einfach merkbaren Informationen (z. B. "ebay", "amazon", etc.) generieren kann. Im Vortrag soll es um die Probleme vorhandener Passwortverfahren (Passwortschemen, Passwortdatenbanken) gehen. Es soll die Theorie hinter der Passwortberechnung erläutert und eine praktische Implementierung dieser Berechnung vorgestellt werden. Bei dem Vortrag geht es um mein neuestes Projekt "calc.pw", einer Open-Source-Hardware zur Generierung von Passworten. Hierzu wird ein Masterpasswort und eine dienstabhängige Information verwendet, die anhand kryptographischer Methoden (Arc4 und SHA-1) zu einem Dienstpasswort überführt werden. Das Ganze ist mit Arduino-Hardware aufgebaut worden und kann mit Hilfe der zur Verfügung gestellten Aufbauinformationen und des Quelltextes, der unter GPLv3 steht, nachgebaut werden. Im Vortrag soll die Idee hinter calc.pw erklärt, es soll der Grund für die Veröffentlichung als Open Source beleuchtet werden. Es sollen außerdem die Besonderheiten der Einzelteile erklärt werden (Stichwort Key-Schedule des RC4, Stichwort Speichermanagent des ATMEL, etc.). Ähnliche Vorträge zu dem Thema konnte ich bereits als Lightning Talk bei der #SIGINT13 und als Lecture bei den #MRMCD2013 halten. http://events.ccc.de/congress/2013/Fahrplan/events/5420.html Day: 2013-12-29 Start time: 13:45 Duration: 00:30 Room: Saal 6 Track: Hardware & Making Language: de

December 10 2013


Amazon Prime (73 MB)

Awesome! I was wondering when you were going to get around to talking about this. With the coming agreement on sales tax, it sure seems like Amazon will start to do same-day delivery in many major metro regions, and this will dramatically change retailing.A few disjoint thoughts on the economics, from a non-Amazon Prime subscriber:It seems to me that when we go to a local store-front hosted store, we're paying a premium for four things:1. Availability and inventory - it's Sunday afternoon and I need a MacGuffin right now to finish the project I'm working on.2. Merchandising - we may very well not have known we wanted something until we saw it there.3. Community - running into people we know, having conversations with neighbors.4. Knowledge - the staff in the hardware store who knows how to fix that thing.One of the problems with big box stores, especially like Home Despot and Lowe's, is that they've abandoned the low-turnover items in order to keep prices low. And trade or more local hardware stores used to subsidize some of the costs of those low-turnover items with the items that moved more (ie: Everything gets a 30% markup, no matter how quickly it turns). With the race to the bottom of the big box stores, cheaper versions of brands that already were sketchy, abandoning the low-turnover but often necessary items, the smaller more focused stores started following along, and now many of those items are special-order.So the down-side to Amazon Prime could be that we're losing the local inventory of the special-order items, the up-side is that with a customer base of a couple of million people covered by the distribution network, what went from in-stock to a 2 week special order will now be a next-day or same-day item.Merchandising will always exist to some extent. People talk about clothing and food as the last hold-outs, but these days I buy my clothing from CostCo, and though I doubt that the grocery section will go away any time soon, I know that at least one neighbor buys most of their processed or prepackaged food from Amazon Prime.Now we get to the harder ones: Community and knowledge. In watching how the downtown of the cute little tourist town I inhabit, I'm amazed and slightly shocked at how the whole space is going to Yoga studios and coffee shops. But, really, that's going towards paying directly for much of what we want from the retail experience: Social spaces. I'll be fascinated to see how this continues to play out, whether we'll reclaim our living rooms again,or whether we'll find other excuses (and other forms for those public spaces, maybe some which are more "pub" like, with smaller rooms for break-out discussions).Finally, on knowledge, as y'all point out, the net is taking this over. But the weird thing about this is that reputation management in search engines is now becoming the source of value, not the knowledge itself. No longer can we assume that the guy in the small local Ace affiliate knows his stuff, and the guy in the big chain hardware store is going to lead you astray, on the Internet, nobody knows if you're a big box blow-hard.What this seems to point to to me is that product directions, not just retailing mechanisms, will bifurcate. On the one hand you'll have the commodity products that Best Buy was trying to sell become ordered from Amazon, on the other hand, you'll have the Apple store model.This will happen in other places: I've become a fan of a fairly expensive line of power tools. Festool keeps a very short leash on its dealers with respect to pricing. That dealers can't compete on price means they compete on other factors, so not only am I buying a product which isn't designed as a "I have to sell cheaper than Black & Decker" tool to move for the homeowner who will only use it twice, I'm buying the service from a dealer who says "yeah, bring that piece you can't cut down to the shop and use my tools for it".The good news is that the agreements that it looks like Amazon is coming to means that towns will get their sales tax back. The bad(?) news is that commercial and retail space will be dramatically changing. I'm not sure what this means for downtowns yet, but I'm guessing that the strip malls and mid-sized stores are going to have some very painful adaptations. http://www.strongtowns.org/strong-towns-podcast/2012/10/4/show-113-amazon-prime.html

October 28 2013


Moving In With Manufacturers, Amazon Delivers A New Approach : NPR

Amazon has been quietly making inroads into a new approach to retail, partnering with manufacturers to ship products directly from the warehouse to consumers, essentially taking out the middle man. The online retailing giant's move comes as it and its competitors experiment with faster delivery. http://www.npr.org/2013/10/28/240742832/moving-in-with-manufacturers-amazon-delivers-a-new-approach?utm_content=socialflow&utm_campaign=nprfacebook&utm_source=npr&utm_medium=facebook
Tags: npr amazon

October 24 2013

President Obama and Pakistan's new Prime Minister met yesterday in hopes of strengthening an alliance complicated by nuclear weapons, terrorism and a lack of http://www.kcrw.com/news/programs/tp/tp131024can_the_us_and_pakis

August 26 2013


Aug 25, 2013 — William Beutler & Simon Owens

August 19 2013


Amazon First Citywide Change Bank - The Talk Show - Mule Radio Syndicate

July 18 2013


Fünf Sterne auf Bestellung - Gefälschte Buchrezensionen bei Amazon | Elektronische Welten | Deutschlandradio Kultur

Der Platzhirsch beim Online-Buchhandel ist Amazon mit seiner scheinbar grenzenlosen Auswahl. Dank der Bewertungen anderer Nutzer weiß man gleich, welches Buch man lesen sollte und welches nicht. Aber Vorsicht: Nicht alle dieser Bewertungen sind echt. http://www.dradio.de/dkultur/sendungen/ewelten/2178070/

January 09 2012


Web Services: Fuelling Innovation and Entrepreneurship

Web services are changing the fundamental nature of the web, as more and more companies offer their data for free. Rather than spending millions of dollars on complicated systems, entrepreneurs can tap into the existing services of companies like Amazon, and create innovative new enterprises for a fraction of the cost; enterprises that wouldn’t have been economical otherwise. In this session, Amazon Web Services Evangelist, Jeff Barr, will discuss the power of open APIs and how they are helping to fuel innovation and entrepreneurship. Jeff will discuss Amazon’s motivation for building AWS and some of the design decisions (such as their use of XSLT) they made along the way. Jeff will touch on some of Amazon’s current offerings such as S3 and the Mechanical Turk, before showing demonstrations of how these services are being used in the wild. http://2006.dconstruct.org/schedule/

October 30 2011


William Shatner and Téa Obreht - Studio 360


June 20 2011


Endangered languages, lost knowledge and the future

Daniel Everett discusses the Pirahã and their language. The language has no words for numbers, no words for right and left and lacks any examples of recursion. This last trait forces us to rethink everything we thought we knew about language. The discussion of the Pirahã language itself is excellent, but Everett's discussion of why endangered languages need to be preserved is absolutely fascinating. His recommendations for preserving endangered languages include preserving natives speaker's land and their heath. He also recommends studying and documenting these languages over a long period of time, as he has done with the Pirahã language. From http://www.longnow.org/projects/seminars/ More information on this seminar is available at http://blog.longnow.org/2009/03/23/daniel-everett-endangered-languages-lost-knowledge-and-the-future/

May 18 2011


Tech New Today 244: The Apology Package

Hosts: Sarah Lane, Iyaz Akhtar, Darren Kitchen and Jason Howell Android authentication compromised, Amazon is going Hollywood, Sony's apology package, and more! Huffduffed from http://twit.tv/tnt244

December 06 2010


Rebooting the News #75

The Wikileaks special, starring Amazon, EveryDNS and a host of Internet pundits.
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