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5070 sats \ 6 replies \ @k00b 20 Sep \ parent \ on: Official Coinos Guide meta
It may seem like we're punishing ourselves by being paranoid and doing something that may only sound marginally safer, but we think it's more than marginally safer and worth the pain -- assuming we can smooth out the UX.
Further, establishing the precedent and expertise around not storing any sensitive customer data on the servers will afford us great agility when doing things like end-to-end encrypted DMs (which we see as critical to providing marketplace and private chat/community features worthy of bitcoiners).
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I... don't know why. The UX is more steps?
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They only store credentials to receive on your device, so you can only receive when your device is online (additionally to the requirement that whichever lightning node you use needs to be online). -
They store credentials to receive on their server so your device does not have to be online to receive, but now they need to make sure these credentials do NOT allow spending else they or anyone with access to them can spend from your wallet.
edit: Wait, I said something wrong. They could add NWC for receiving to nostr profiles, and clients could then fetch it and use it to request invoices from your node, but the permissions need to be checked before adding it to your profile for everyone to see.
Sorry, I just woke up lol
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Is this why you guys require separate receive / spend NWC strings?
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Yes, credentials to receive must be shared so people can send you money.
Credentials to spend must be kept private so people cannot steal your money.
NWC does make this distinction very hard, because all NWC strings look the same, so the user is understandably very confused. And some apps (like Coinos) do not even allow to remove permissions from them.
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