anyone have a good idea on how to make hashes of phone numbers rainbow-table resistant? Trying to think of a way to find friends on nostr by phone number but without leaking the number. maybe argon2(first name + number) ?
We should spec this if so.
but why phone numbers?
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It’s the most common method for finding friends on pretty much every phone app that exists.
Unfortunately, I can't think of a better idea. I just hate phone numbers because it's a kyc hell.
