John Ulrik on Nostr: nprofile1q…e5dhk No, Signal doesn’t do that. To establish contacts, the Signal ...

nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqw7msz8mhxrrrz32lkg4agzejdmnhpjvctvtm0w34emk0p3sy2htqqe5dhk (nprofile…5dhk) No, Signal doesn’t do that. To establish contacts, the Signal client only sends an cryptographically obfuscated (hashed) version of the phone numbers in your address book to a Signal server (making extra sure that server’s code has not been tampered with by using a clever reversal of DRM technology). It does not send the cleartext of your address book. You can find background information on Signal’s technologies and algorithms on Signal’s blog at https://signal.org/blog/.