• Login
    • Search
    • [[global:header.recent]]
    • [[global:header.tags]]
    • [[global:header.popular]]
    • [[global:header.groups]]
    • [[global:header.search]]
    1. Home
    2. Simon Bohlin
    S
    • Profile
    • Following 0
    • Followers 0
    • Topics 0
    • Posts 13
    • Best 4
    • Controversial 0
    • Groups 0

    Simon Bohlin

    @Simon Bohlin

    4
    Reputation
    1706
    Profile views
    13
    Posts
    0
    Followers
    0
    Following
    Joined Last Online

    Simon Bohlin Unfollow Follow

    Best posts made by Simon Bohlin

    • RE: In public transport

      There really should exist some kind of "NFC usage catalog" somewhere online. Or if not, nfcring.com could perhaps host or at least partially sponsor such a site. If nfcring becomes a user-owned company to some extent, that could help adoption and spread of such a NFC usage catalog. I could probably sponsor with setting up an instance of our platform (see bitcoinfinder.net and openhours.co.uk etc.) for this purpose, if there is interest from the community. Maybe the NFC organizations (NFC Alliance or something?) could also be interested in cooperating on something like this. The official site would catalog what NFC technologies are used and where.

      posted in Ideas for using NFC Rings
      S
      Simon Bohlin
    • RE: Over-thinking things

      hands me the decive to enter my PIN.

      Would be great to avoid giving away the PIN to anyone looking. Or if the hardware is cloning. There may have been a bluetooth-based ring up for pre-order (Kickstarter?) with a display, which could solve some of this. But generally just pre-approving myself with a budget for coffee-places, another for lunches, etc would allow payments without PIN in these places.

      posted in Making payments with the NFC Ring
      S
      Simon Bohlin
    • RE: List of known door locks that do and dont work with NFC ring

      These hardware lists really could benefit from some kind of Wiki or table format. I'd like to have a list of: manufacturer, model, price range, test results, warranty length, links for where to buy

      I've got a list of candidates (made in China) for testing:
      Guangzhou Douwin Electronics Limited [China (Mainland)]
      Low price smart card handle nfc door lock / High grade NFC security safe door lock
      (FOB Price : US $31 - 35 Min. Order : 100 Sets)

      Shenzhen JinBeiEr Intellectual System Limited Company [China (Mainland)]
      handle lock nfc door lock with intelligent card
      (FOB Price : US $30 - 40 Min. Order : 1 Piece)

      posted in Digital Door Locks
      S
      Simon Bohlin
    • RE: Make your ring do different stuff depending on current time! (Tasker+Trigger+NFC Ring) [TUTORIAL]

      excellent guide! One photo (justa bove "Remember to press your “Back” button, or the task won’t be saved!!") is gone -- hopefully it's not important for the guide!

      posted in Ideas for using NFC Rings
      S
      Simon Bohlin

    Latest posts made by Simon Bohlin

    • RE: List of known door locks that do and dont work with NFC ring

      both 125kHz and 13.56MHz
      Chinese providers often type out all features of all products, in one list. Then you have to be careful when ordering to ensure you get the exact product you wanted.

      So in this case I suspect you can get either or.

      posted in Digital Door Locks
      S
      Simon Bohlin
    • RE: Bitcoins

      @jonwaller said:

      then set the ring's public code to that address, and the ring's private code to the private key of that address.

      I think there has been reports of the private side of the ring interfering with the front side. Most likely, some NFC readers can be strong or smart enough to read both the public and the private side.

      There are also methods, using special-made antennas and such, to scan NFC chips from a much larger distance. I probably read about it in news reports from some BlackHat or DefCon conference.

      posted in Making payments with the NFC Ring
      S
      Simon Bohlin
    • RE: Bitcoin: Limitations and advantages of the NFC ring

      Another option is to just store the keys on your ring and use them to interact with your mobile phone so your mobile phone never stores your private key

      Sorry, but storing a complete private key on the ring is probably a bad idea. Since the merchant taking payments are surely funneling all payments via some bank or payment processor, they could just send your public ID and let the remote payment processor handle things. They could do an instant debit or even a delayed credit transaction. You could have traditional (and costly) option to dispute the transaction.

      With banks testing contactless payments (NFC) for sums under 25EUR, the same could be done with NFC rings, but that would surely mean the ring must use other NFC chips and the whole process would probably get more expensive. The brave could perhaps dare to extract the active part of a Paypass and try to squeeze that into a ring. But it'd surely be illegal for the stores to receive a payment unless you have an unharmed card with your signature etc etc. So, trouble.

      posted in Making payments with the NFC Ring
      S
      Simon Bohlin
    • RE: Over-thinking things

      hands me the decive to enter my PIN.

      Would be great to avoid giving away the PIN to anyone looking. Or if the hardware is cloning. There may have been a bluetooth-based ring up for pre-order (Kickstarter?) with a display, which could solve some of this. But generally just pre-approving myself with a budget for coffee-places, another for lunches, etc would allow payments without PIN in these places.

      posted in Making payments with the NFC Ring
      S
      Simon Bohlin
    • RE: Next rev of NFC tag used in NFCring

      @Lokki said:

      an NFC enabled sticker for the back of your non-NFC phone

      Maybe this sticker isn't a classical N203 but instead something with private-public crypto built-in? A decent phone should be able to read and give a good guess at what chip is used in that sticker.

      posted in Making payments with the NFC Ring
      S
      Simon Bohlin
    • RE: Is it possible to make Payments (NON - bitcoin) with the ri?

      ring-initiated Ripple/Stellar transfers?

      posted in Making payments with the NFC Ring
      S
      Simon Bohlin
    • RE: Protocol design suggestion

      Maybe multi-sign solutions can be interesting here? New wallets with this functionality is currently in beta, if I've read the news correctly.

      posted in Making payments with the NFC Ring
      S
      Simon Bohlin
    • RE: List of known door locks that do and dont work with NFC ring

      Ideally, someone with shorter shipping time from these merchants could get one in the mail, do some testing, then if it works send it onwards towards someone in Europe at maybe 2x cost. Documentation and installation instructions are typically very weak on Alibaba and similar websites.

      posted in Digital Door Locks
      S
      Simon Bohlin
    • RE: List of known door locks that do and dont work with NFC ring

      These hardware lists really could benefit from some kind of Wiki or table format. I'd like to have a list of: manufacturer, model, price range, test results, warranty length, links for where to buy

      I've got a list of candidates (made in China) for testing:
      Guangzhou Douwin Electronics Limited [China (Mainland)]
      Low price smart card handle nfc door lock / High grade NFC security safe door lock
      (FOB Price : US $31 - 35 Min. Order : 100 Sets)

      Shenzhen JinBeiEr Intellectual System Limited Company [China (Mainland)]
      handle lock nfc door lock with intelligent card
      (FOB Price : US $30 - 40 Min. Order : 1 Piece)

      posted in Digital Door Locks
      S
      Simon Bohlin
    • RE: Make your ring do different stuff depending on current time! (Tasker+Trigger+NFC Ring) [TUTORIAL]

      excellent guide! One photo (justa bove "Remember to press your “Back” button, or the task won’t be saved!!") is gone -- hopefully it's not important for the guide!

      posted in Ideas for using NFC Rings
      S
      Simon Bohlin