While USB devices often use standard device classes, some do not. This talk is about reverse engineering the protocols some of these devices use, how the underlying USB protocol gives us some help, and some interesting patterns to look for. I'll also detail the thought processes that went into reverse engineering the Kinect's audio protocol. This talk will narrate the process of reverse engineering the Kinect audio protocol – analyzing a set of USB logs, finding patterns, building understanding, developing hypotheses of message structure, and eventually implementing a userspace driver. I'll also cover how the USB standard can help a reverse engineer out, some common design ideas that I've seen, and ideas for the sorts of tools that could assist in completing this kind of task more efficiently.
Secdocs is a project aimed to index high-quality IT security and hacking documents. These are fetched from multiple data sources: events, conferences and generally from interwebs.
Serving 8166 documents and 531.0 GB of hacking knowledge, indexed from 2419 authors from 163 security conferences.