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Leonardo Francisco 67b9c18696 validity: Add TLS session management (Iteration 2) 
Implement the TLS handshake and encrypted channel for VCSFW sensors:

- validity_tls.c/h: TLS PRF (P_SHA256), AES-256-CBC encrypt/decrypt,
  PSK derivation from DMI (machine binding), flash partition parsing
  (cert/privkey/ECDH blocks with SHA-256 integrity), ClientHello/
  ServerHello builders, full TLS handshake state machine
- validity.c: Integrate TLS into open sequence — check fwext status,
  read flash partition 1, perform TLS handshake when keys available,
  graceful skip when fwext not loaded
- validity.h: Add ValidityTlsState, fwext_loaded flag, TLS fields
- OpenSSL dependency for ECDH, AES-256-CBC, HMAC-SHA256

Tests (18 total in test-validity-tls):
  - 13 unit tests: init/free, ClientHello format, PRF determinism/
    length/short, encrypt roundtrip/alignment, decrypt invalid,
    PSK derivation/determinism, flash parse empty/truncated,
    unwrap invalid
  - 5 regression tests for bugs found during hardware testing:
    - flash parse ordering (PSK must precede parse)
    - READ_FLASH command format (13-byte layout)
    - flash response 6-byte header unwrap
    - ServerHello expects raw TLS (no VCSFW prefix)
    - ClientHello TLS record prefix (0x44000000)
  - Hardware integration test script (test_tls_hardware.py)

All 33 project tests pass (0 fail, 2 skipped).
2026-04-22 03:06:34 +00:00
.ci ci: Add ABI check 2019-08-05 20:05:13 +02:00
.gitlab-ci ci: Add PyGObject symbols 2026-02-10 06:33:00 +01:00
data validity: Add new driver for Validity/Synaptics VCSFW sensors 2026-04-22 03:06:34 +00:00
demo scripts/uncrustify: Use 2-spaces indentation for defines too 2025-02-20 15:50:46 +00:00
doc build: Stop using deprecated dep.get_pkgconfig_variable() method 2024-02-20 01:02:00 +01:00
examples examples/clear-storage: Remove local storage for devices without storage 2025-02-20 16:37:11 +01:00
libfprint validity: Add TLS session management (Iteration 2) 2026-04-22 03:06:34 +00:00
scripts scripts/uncrustify: Use 2-spaces indentation for defines too 2025-02-20 15:50:46 +00:00
tests validity: Add TLS session management (Iteration 2) 2026-04-22 03:06:34 +00:00
.git-blame-ignore-revs .git-blame-ignore-revs: Ignore formatting commit and add hint how to use it 2020-12-07 19:01:10 +01:00
.gitignore gitignore: Remove autotools ignores, add _build 2020-02-10 11:41:40 +01:00
.gitlab-ci.yml ci: Make jobs interrumpible 2026-02-10 06:35:26 +01:00
AUTHORS AUTHORS: Update 2012-12-14 13:17:24 +01:00
code-of-conduct.md Add code of conduct document 2019-07-25 12:04:39 +02:00
COPYING upekts relicensing 2007-11-15 09:54:35 +00:00
gcovr.cfg gcovr: Add gcovr project configuration 2025-08-01 01:42:01 +02:00
HACKING.md HACKING: Clarify the intent of the license 2019-08-05 13:37:28 +02:00
INSTALL INSTALL: Update for Meson 2018-05-18 01:16:30 +02:00
MAINTAINERS Add MAINTAINERS file 2020-05-22 15:00:11 +02:00
meson.build validity: Add TLS session management (Iteration 2) 2026-04-22 03:06:34 +00:00
meson_options.txt tests: Add support for installed tests 2023-06-28 16:35:16 +02:00
NEWS Release 1.94.10 2026-02-10 03:18:14 +01:00
README.md README: Add contact information 2024-05-03 15:35:11 +02:00
THANKS Thanks to Greg and Martin from AuthenTec 2012-11-29 09:51:55 +01:00

README.md

LibFPrint

LibFPrint is part of the FPrint project.


Button Website Button Documentation

Button Supported Button Unsupported

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History

LibFPrint was originally developed as part of an academic project at the University Of Manchester.

It aimed to hide the differences between consumer fingerprint scanners and provide a single uniform API to application developers.

Goal

The ultimate goal of the FPrint project is to make fingerprint scanners widely and easily usable under common Linux environments.

License

Section 6 of the license states that for compiled works that use this library, such works must include LibFPrint copyright notices alongside the copyright notices for the other parts of the work.

LibFPrint includes code from NIST's NBIS software distribution.

We include Bozorth3 from the US Export Controlled distribution, which we have determined to be fine being shipped in an open source project.

Get in touch

  • IRC - #fprint @ irc.oftc.net
  • Matrix - #fprint:matrix.org bridged to the IRC channel
  • MailingList - low traffic, not much used these days

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