No, because 3DH requires pre-exchanged public keys. For Signal, this key exchange might happen automatically, but you still need to manually compare the fingerprints to achieve authentication.
A regular Diffie-Hellman key exchange is not authenticated, meaning that you don't know who you establish a key with. To authenticate this key exchange, you would need some prior security context (e.g., some shared…
Acoustic communication is quite nice for this kind of ad-hoc provisioning, because it doesn't require any special hardware or prior pairing. One security issue is that if you do this in public, an attacker could…
No, because 3DH requires pre-exchanged public keys. For Signal, this key exchange might happen automatically, but you still need to manually compare the fingerprints to achieve authentication.
A regular Diffie-Hellman key exchange is not authenticated, meaning that you don't know who you establish a key with. To authenticate this key exchange, you would need some prior security context (e.g., some shared…
Acoustic communication is quite nice for this kind of ad-hoc provisioning, because it doesn't require any special hardware or prior pairing. One security issue is that if you do this in public, an attacker could…