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0 sats \ 2 replies \ @siggy47 4 Sep \ on: Man Trades Frozen Octopus for Bitcoin on Open Source App bitcoin
This idea has great potential, IMO. I have engaged in private transactions informally with people I only have learned to trust through my contacts with them on SN and nostr. It makes sense.
The only problem- I can't see myself giving this app access to my contacts.
Your contacts are hashed locally on your device. Only the hashes are pushed to Vexl.
If you and I have Alice as a contact, we both produce the same hash of her number. That way we have visibility of each other's offers since we matched on Alice has a common (hashed phone number) contact.
You can read a little more in the blog after 'If someone were to successfully decode the hashed numbers' https://vexl.it/post/understanding-vexl-security-privacy-and-building-a-web-of-trust