Lockitron: $500K of Reservations in One Day

Post by bduerst » Thu, Oct 04, 2012, 6:00 PM UTC

mpclark wrote: post #42

bduerst wrote: post #22

Earlier quoted context omitted.

FYI I downloaded your app a couple months ago with the hopes I could use it to replicate my NFC card for my building, but I hit your login-only screen. Can you make an a "Lockitron Labs" app or something similar that allows you to read third party NFC keys and replicate their signal on demand?

Actual NFC keys (as implemented on NFC phones) don't work like this -- they are much more secure (think of an exchange of freshly calculated encrypted information rather than broadcasting an unchanging code) and can't be copied.

Post by mpclark » Fri, Oct 05, 2012, 10:18 AM UTC

bduerst wrote: post #92

mpclark wrote: post #42

Earlier quoted context omitted.

Actual NFC keys (as implemented on NFC phones) don't work like this -- they are much more secure (think of an exchange of freshly calculated encrypted information rather than broadcasting an unchanging code) and can't be copied.

Wouldn't it be possible to reverse engineer then? If you ping it with several different signals, you can interpret the responses and analyze the encryption - right?