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Joined 2 年前
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Cake day: 2023年6月7日

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  • So looking at it, I saw a few things. The easy thing is to google the restaurant name, of course, but there were other clues.

    The trees were tall evergreens, suggesting northern part of the northern hemisphere.

    The license plates appear to be European style suggesting somewhere in Europe.

    There is a street sign that is like 4 feet wide but only two lines tall. Suggesting Scandinavian.

    That was as specific as I got before looking at the street view that was posted and seeing Norway.


  • I’ll add my experience to it as well.

    I recently used it for a trip. I put into it my flights, hotels, checking/out times, reservations, and any other pertinant travel data. It gave me one single place to find a rather large amount of data.

    It also helped me keep my timelines straight as I was booking things to make sure I didn’t have any overlap.


  • Starbucks has been doing everything it can to not be warm and welcoming. The newer ones around me have all been bench seating at what feels like a folding table that was clearly just designed so you could sit while you wait on your coffee, but not get comfortable enough to stick around. They’ve taken everything off the walls and removed anything that might dampen sound so you can’t have a casual conversation anymore.

    There is nothing welcoming about being there, and the atmosphere is about as corporate cold as they could possibly manage. Whatever starbucks used to be is dead and gone. I expect them to eat themselves and fail spectacularly soon in a chase for more and more profit margin on each cup.








  • For most people, the thought of replacing an outlet or switch is daunting to say the least. My IKEA smart bulbs are going on 7 years old and still working great.

    I did replace every single outlet and switch in my house when I moved in, but that was before I knew about ZigBee or Zwave, and well before matter existed.

    I don’t feel the need to replace most of my switches and half of my outlets again.






  • So I and some others here have probably sounded a bit antagonistic to you, but good on you for asking and trying to understand. Public Key Cryptography feels like magic to me too, it’s just magic that I’ve accepted exists without understanding the base math of it all. Without it, however, most of the security of the Internet doesn’t work.

    Even most symmetrical encryption (Like AES, which is how you are picturing encryption working) layers on asymmetrical encryption as a negotiation layer to share a key that both parties have but that nobody eves dropping can read. Then once the key is exchanged, they use that because symmetrical encryption is way easier for computers. But for short messages like Signal sends, it wouldn’t surprise me if they stay asymmetrical for the entire communication.


  • Signal does hold the public keys for every user. But having the public key doesn’t let you decrypt anything. You need the private key to decrypt data encrypted with the public key. So in a chat example, if you and I exchange public keys, I can encrypt the message using your public key, but only you can decrypt it, using your private key.

    Signal does run the key exchange, which means they could hand a user the wrong public key, a public key which they have the private key for, instead of the other person’s. That is a threat model for this type of communications, however, signal users can see the key thumbprints of their fellow chat participants and verify them manually. And once a chat has begun, any changes to that key alerts all parties in the chat so they know a change has happened. The new key wont have access to any previous or pending messages, only new ones after the change took place.





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