• 7 Posts
  • 21 Comments
Joined 3 years ago
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Cake day: April 5th, 2022

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  • Most mass-marketed VPN services (the type marketed for accessing the internet) allow you to VPN into their private subnet where the thing you can access is their gateway router (which you use in place of your home gateway router/modem for connecting to the internet). You don’t need a VPN service to use VPN software between two points you control.






  • […] the attack is an extremely expensive nation state level operation that doesn’t scale.

    About $250 at most. Quoting the linked page:

    Below is a list of equipment we used for the experiments.

    • (1) Software Defined Ratio (SDR): Ettus USRP B210 USRP, ~$2100.
    • (2) Low Noise Amplifier (LNA): Foresight Intelligence FSTRFAMP06 LNA, ~$200.
    • (3) Directional Antenna: A common outdoor Log-periodic directional antenna (LPDA), ~$15.
    • (4) A laptop, of course.

    Note that the equipment can be replaced with cheaper counterparts. For example, USRP B210 can be replaced with RTL-SDR that costs ~$30.

    To reproduce the attack: our GitHub repository provides the codes and instructions for reproducing and understanding the attack. We have prepared a ready-to-use software tool that can produce real-time reconstructions of the eavesdropped videos with EM signal input from the USRP device.





  • tavu@sopuli.xyztoPrivacy@lemmy.mlEtherpad or Cryptpad
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    1 year ago

    Cryptpad:

    • Full-on google docs / office365 / libreoffice type replacement with collaboration.
    • E2EE
    • The complexity means it doesn’t work well on mobile, takes a while to load on a slow connection, more frequent bugs. (3.5 MiB page transfer)
    • Self-hosting is complicated.

    Etherpad:

    • A competent collaborative rich-text editor. Doesn’t do spreadsheets or presentations or […].
    • Not E2EE (you need to trust that the server a bit more).
    • Lightweight, works on slower connections, works alright on mobile. (1.7 MiB page transfer)
    • Self-hosting quite simple.

    PrivateBin:

    • Super-simple plain-text/markdown pastebin. No editing possible once saved.
    • E2EE
    • Very small. Works fine on slow connections and mobile. (0.2 MiB page transfer)
    • Self-hosting very simple.







  • Having wider tyres ~2"/50mm or so pretty much eliminates the risk (and gives a comfy ride). If you really like the speed of narrow tyres, it’s really quite safe with the right technique – crossing tracks at an angle to avoid mishaps (I find 30° is sufficient, 90° is never a problem), and when they’re slippery, treating them like ice. It becomes second nature soon enough.

    I think there are some rubber/elasromer inserts which have been developed which also eliminate the groove – it presents a flat surface to bikes, yet squishes down for the tram wheel flange under the immense weight.