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Joined 1 year ago
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Cake day: June 7th, 2023

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  • In practice, I believe the private key should contain the public key (or at least sufficient data to recover it): https://superuser.com/questions/814409/gnupg-opengpg-recovering-public-key-from-private-key#814421

    I believe you only need your private key to sign files so, technically you only need to back up the private key, but you should test this to be sure it fits your use case.

    Depending on how you’re backing things up, and what your security goals are, remember that backing up a private key may involve putting that private key on somebody else’s computer - i.e. if you use a remote git repo, or cloud backup service, or even send the key to your own (different) machine over an insecure network. Make sure that you’ve got a way of securely backing up your private key, otherwise you may undermine the whole cryptography thing anyways :).

    As always, you should test by backing up your key(s) and then testing that you can actually restore them and successfully sign a file. Backups are only as good as the last time you tested restoring from them.




  • Zigbee mostly uses 2.4Ghz, so it’s not helping remove congestion from that band anyways but I guess the other protocols do. Can’t the devices phone home as soon as they’re connected to a hub that’s internet connected? Even if the hub has to cooperate with the device, they’re made by the same manufacturers so I wouldn’t trust tleither of them.

    With wifi I can spin up a separate iot vlan that cannot access the internet. That vlan doesn’t require my ISP, it’s entirely local. I get to control exactly who connects and even who they connect with. I don’t see that same control with the alternatives.

    I guess I do see an argument for very low power devices using a lower power protocol, but I guess I just don’t have any of those devices so it hasn’t been an issue for me. And like you said traffic congestion is a valid problem, I’ve just never experienced it.



  • Sampson Boat Co. - British man and friends rebuild wooden sailing boat. If you have any interest in boats or craftsmanship you’ll enjoy. Watch from the very beginning to see their incredible progress.

    Beau Miles - Charming and slightly rough Australian man has strange adventures and philosophizes along the way. He gets excited about particularly useful/edible bits of trash along the highway.

    Primitive Technology - Silent man with blue shorts exists alone in the jungle and has been working his way up to iron tools. He is freakishly fast at making fire with only two sticks. Watch in order to see his progression and turn on captions to see his commentary.

    Spirit Of The Law - Extremely thorough Age of Empires II science and analysis. If you thought this 24 year old video game was dead, think again.

    Settled - Old School RuneScape player plays the game with extra restrictions that create surprisingly compelling storytelling. “Swampletics”, his Morytania-locked Ultimate Iron Man is legendary.

    DIY Perks - British guy makes mostly brass/wooden PCs and other tech. His creations aren’t always the most practical but they are always interesting. His slim PlayStation 5 was neat.

    There’s a handful of sustainable farming channels that I like: No-Till Growers, Richard Perkins, and Josh Sattin Farming. If your interests include food or growing stuff then these are for you.