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Do we have any users here who have to type important passwords, and still own wireless keyboards? What convinced you this is safe?
by lvass 4y ago
Do we have any users here who have to type important passwords, and still own wireless keyboards? What convinced you this is safe?
- krallja 4y agoI use a wired keyboard for latency, FileVault, and reliability reasons. I’m not concerned about the security. If someone is close enough to sniff BT packets, they can also do acoustic analysis of your typing, or a TEMPEST attack on the (plaintext!) USB protocol. BT can have about the same level of encryption as TLS. https://duo.com/decipher/understanding-bluetooth-security https://duo.com/decipher/understanding-bluetooth-security
- lvass 4y ago>close enough to sniff BT packets, they can also do acoustic analysis of your typing, or a TEMPEST attack Evidence needed, those look multiple orders of magnitude harder. >BT can have about the same level of encryption as TLS But does your keyboard always have it, even in bootloader/initrd? What about the far more common wireless USB dongles?