Skip to main content

Timeline for Ownership proof scheme

Current License: CC BY-SA 4.0

4 events
when toggle format what by license comment
Dec 8, 2021 at 23:00 vote accept Vadim
Dec 8, 2021 at 23:00 comment added Vadim 4. The point about initial activation over yet insecure BLE channel is also valid - I initially thought the initial activation will be done in a secure environment but given the potential need to recycle C this assumption could be wrong. So it seems that I need to devize a scheme based on public key crypto....
Dec 8, 2021 at 22:59 comment added Vadim Dear @CBHaking, Thank you for your input. It made me realize that I failed to consider some aspects of the problem. Now to answer your concerns: 1. K will be printed as QRcode in the manual so there will be no problem entering it 2. Your advice on using sha256(K) or authenticated encryption is very useful indeed. 3. Your concern about the need to recycle C in case of phone theft is EXTREMELY on the mark as I didn't think about it at ALL.
Dec 7, 2021 at 6:45 history answered CBHacking CC BY-SA 4.0