Petter Reinholdtsen

A few days ago, I was introduces to some students in the robot student assosiation Robotica Osloensis at the University of Oslo where I work, who planned to get their own 3D printer. They wanted to learn from me based on my work in the area. After having a short lunch meeting with them, I offered them to borrow my reprap kit, as I never had time to complete the build and this seem unlike to change any time soon. I look forward to see how this goes. This monday their volunteer driver picked up my kit and drove it to their lab, and tomorrow I am told the last exam is over so they can start work on getting the 3D printer operational.

The robotic group have already build several robots on their own, and seem capable of getting the reprap operational. I really look forward to being able to print all the cool 3D designs published on Thingiverse. I even got some 3D scans I got made during Dagen@IFI when one of the groups at the computer science department at the university demonstrated their very cool 3D scanner.

Martin Bekkelund ved friprog-senteret har skrevet følgende korte oppsummering rundt datalagringsdirektivet, som jeg videreformidler her.

Det pågår i disse dager en intens diskusjon om innføring av Datalagringsdirektivet (DLD) i norsk rett. Kanskje har du gjort deg opp en mening, kanskje er du usikker. I begge tilfeller ber jeg deg lese videre.

Samtlige fagmiljøer, både i Norge og EU, har konkludert med at DLD ikke bør innføres på nåværende tidspunkt. Den tekniske kvaliteten på direktivet er dårlig, det griper uforholdsmessig inn i personvernet, det har store mangler og viktige spørsmål som hvem som skal ha tilgang og hvordan data skal lagres er fortsatt uavklart.

• EU-ekspertene sier at konsekvensene av å benytte vetoretten er minimale
• Juristene påpeker at direktivet er i strid med EMK
• Datatilsynet sier direktivet får store konsekvenser for personvernet og at direktivet er irreversibelt
• Teknologene sier at sikker lagring ikke er mulig, at det er svært enkelt å omgå og mulig å manipulere data og produsere falske beviser
• Pressen sier nei av hensyn til kildevernet
• Det er store interne stridigheter i EU. Blant annet har den tyske forfatningsdomstolen funnet at måten DLD er innført på er i strid med tysk grunnlov
• Alle de store operatørene og tilbyderne sier nei, av tekniske og personvernmessige årsaker

Jeg liker å tro at jeg er en hyggelig fyr. Jeg har et rent rulleblad, og med unntak av to fartsbøter har jeg aldri vært en byrde for samfunnet. Det akter jeg å fortsette med. Det er mange som meg, lovlydige, pliktoppfyllende borgere som aldri vil utgjøre en trussel mot noe som helst. Vi synes derfor det er trist og sårende at all vår atferd skal overvåkes døgnkontinuerlig.

Understøttet av faglige vurderinger kan du trygt si nei til DLD.

Ta kontakt med meg hvis du har spørsmål om DLD, uansett hva det måtte gjelde.

Denne teksten er å anse som Public Domain. Spre den videre til alle som kan ha nytte av den!

Siste melding fra Nettavisen er at regjeringen planlegger å fremme sitt forslag til implementering av datalagringsdirektivet i morgen, i ly av fredprisutdelingen for å få minst mulig pressedekning om saken. Vi får snart se om det stemmer.

With this weeks lawless governmental attacks on Wikileak and free speech, it has become obvious that PayPal, visa and mastercard can not be trusted to handle money transactions. A blog post from Simon Phipps on bitcoin reminded me about a project that a friend of mine mentioned earlier. I decided to follow Simon's example, and get involved with BitCoin. I got some help from my friend to get it all running, and he even handed me some bitcoins to get started. I even donated a few bitcoins to Simon for helping me remember BitCoin.

So, what is bitcoins, you probably wonder? It is a digital crypto-currency, decentralised and handled using peer-to-peer networks. It allows anonymous transactions and prohibits central control over the transactions, making it impossible for governments and companies alike to block donations and other transactions. The source is free software, and while the key dependency wxWidgets 2.9 for the graphical user interface is missing in Debian, the command line client builds just fine. Hopefully Jonas will get the package into Debian soon.

Bitcoins can be converted to other currencies, like USD and EUR. There are companies accepting bitcoins when selling services and goods, and there are even currency "stock" markets where the exchange rate is decided. There are not many users so far, but the concept seems promising. If you want to get started and lack a friend with any bitcoins to spare, you can even get some for free (0.05 bitcoin at the time of writing). Use BitcoinWatch to keep an eye on the current exchange rates.

As an experiment, I have decided to set up bitcoind on one of my machines. If you want to support my activity, please send Bitcoin donations to the address 15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b. Thank you!

Via en blogpost fra Simon Phipps i går, fant jeg en referanse til en artikkel i Washington Times som igjen refererer til en artikkel i det fagfellevurderte tidsskriftet Journal of Transportation Security med tittelen "An evaluation of airport x-ray backscatter units based on image characteristics" som enkelt konstaterer at pornoscannerne som kler av reisende på flyplasser ikke er i stand til å avsløre det produsenten og amerikanske myndigheter sier de skal avsløre. Kort sagt, de bedrer ikke sikkerheten. Reisende må altså la ansatte på flyplasser se dem nakne eller la seg beføle i skrittet uten grunn. Jeg vil fortsette å nekte å bruke disse pornoskannerne, unngå flyplasser der de er tatt i bruk, og reise med andre transportmidler enn fly hvis jeg kan.

As I continue to explore BitCoin, I've starting to wonder what properties the system have, and how it will be affected by laws and regulations here in Norway. Here are some random notes.

One interesting thing to note is that since the transactions are verified using a peer to peer network, all details about a transaction is known to everyone. This means that if a BitCoin address has been published like I did with mine in my initial post about BitCoin, it is possible for everyone to see how many BitCoins have been transfered to that address. There is even a web service to look at the details for all transactions. There I can see that my address 15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b have received 16.06 Bitcoin, the 1LfdGnGuWkpSJgbQySxxCWhv8MHqvwst3 address of Simon Phipps have received 181.97 BitCoin and the address 1MCwBbhNGp5hRm5rC1Aims2YFRe2SXPYKt of EFF have received 2447.38 BitCoins so far. Thank you to each and every one of you that donated bitcoins to support my activity. The fact that anyone can see how much money was transfered to a given address make it more obvious why the BitCoin community recommend to generate and hand out a new address for each transaction. I'm told there is no way to track which addresses belong to a given person or organisation without the person or organisation revealing it themselves, as Simon, EFF and I have done.

In Norway, and in most other countries, there are laws and regulations limiting how much money one can transfer across the border without declaring it. There are money laundering, tax and accounting laws and regulations I would expect to apply to the use of BitCoin. If the Skolelinux foundation (SLX Debian Labs) were to accept donations in BitCoin in addition to normal bank transfers like EFF is doing, how should this be accounted? Given that it is impossible to know if money can across the border or not, should everything or nothing be declared? What exchange rate should be used when calculating taxes? Would receivers have to pay income tax if the foundation were to pay Skolelinux contributors in BitCoin? I have no idea, but it would be interesting to know.

For a currency to be useful and successful, it must be trusted and accepted by a lot of users. It must be possible to get easy access to the currency (as a wage or using currency exchanges), and it must be easy to spend it. At the moment BitCoin seem fairly easy to get access to, but there are very few places to spend it. I am not really a regular user of any of the vendor types currently accepting BitCoin, so I wonder when my kind of show would start accepting BitCoins. I would like to buy electronics, travels and subway tickets, not herbs and books. :) The currency is young, and this will improve over time if it become popular, but I suspect regular banks will start to lobby to get BitCoin declared illegal if it become popular. I'm sure they will claim it is helping fund terrorism and money laundering (which probably would be true, as is any currency in existence), but I believe the problems should be solved elsewhere and not by blaming currencies.

The process of creating new BitCoins is called mining, and it is CPU intensive process that depend on a bit of luck as well (as one is competing against all the other miners currently spending CPU cycles to see which one get the next lump of cash. The "winner" get 50 BitCoin when this happen. Yesterday I came across the obvious way to join forces to increase ones changes of getting at least some coins, by coordinating the work on mining BitCoins across several machines and people, and sharing the result if one is lucky and get the 50 BitCoins. Check out BitCoin Pool if this sounds interesting. I have not had time to try to set up a machine to participate there yet.