Validity90
This project aims on reverse engineering protocol of Validity 138a:0090, 138a:0094, 138a:0097, 06cb:0081, 06cb:009a fingerprint readers, creating specification and FLOSS libfprint driver.
Discussions
Main chat of this project: 
libfrprint issue: https://gitlab.freedesktop.org/libfprint/libfprint/issues/54
Lenovo forums: https://forums.lenovo.com/t5/Linux-Discussion/Validity-Fingerprint-Reader-Linux/td-p/3352145
Notable files
- spec.md - Specification draft, the main work goes here right now.
- dissector.lua - Wireshark dissector for decrypting communication after key exchange.
- ~libfprint directory - libfprint repo with this driver integrated~ Not ready at the moment.
- prototype - Standalone prototype(extremly ugly code, would be completly rewritten for driver)
Testing
Prototype testers are needed, please share your result and join us in our Gitter.
Status, Device, Status, -----------, --------, 138a:0090, Scan, Image output, Internal DB check works in prototype. There is also a match-on-host libfprint driver by @3v1n0 based on prototype source(138a:0090 only). You can use it untill proper unified driver is available., 138a:0097, Scan, Internal DB check works in prototype, 138a:0094, Doesn't work yet, but looks promising. I will try to work on it after 90/97, 06cb:0081, So far looks identical to 138a:0094, 06cb:009a, Init works, leds work, scan doesn't work yet, 138a:0091, Different protocol, out of scope for this project. Check out Validity91 which aims to reverse engineer it., Task, Specification/Analysis, Prototype, Driver, ---------------------------, -------------------------, -------------, -------------, Initialization, Done, Done, Not Started, Configuration/Reconfig, In progress, In progress, Not Started, Pre TLS key exchange, In progress, Done, Not Started, TLS, Done, Done, Not Started, 90: Ops: scan, LED, etc, In progress, Scan, LED works, Not Started, 97: Ops: enroll, check, reset, LED, etc, In progress, Check works, Not Started, Image format, In progress, Done, Not Started, ## Donations
Please consider donating to support the development.
With paypal: 
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