3 image:https://github.com/yubico/libfido2/workflows/linux/badge.svg["Linux Build Status (github actions)", link="https://github.com/Yubico/libfido2/actions"]
4 image:https://github.com/yubico/libfido2/workflows/macos/badge.svg["macOS Build Status (github actions)", link="https://github.com/Yubico/libfido2/actions"]
5 image:https://github.com/yubico/libfido2/workflows/windows/badge.svg["Windows Build Status (github actions)", link="https://github.com/Yubico/libfido2/actions"]
6 image:https://github.com/yubico/libfido2/workflows/fuzzer/badge.svg["Fuzz Status (github actions)", link="https://github.com/Yubico/libfido2/actions"]
7 image:https://oss-fuzz-build-logs.storage.googleapis.com/badges/libfido2.svg["Fuzz Status (oss-fuzz)", link="https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:libfido2"]
9 *libfido2* provides library functionality and command-line tools to
10 communicate with a FIDO device over USB, and to verify attestation and
13 *libfido2* supports the FIDO U2F (CTAP 1) and FIDO2 (CTAP 2) protocols.
15 For usage, see the `examples/` directory.
19 *libfido2* is licensed under the BSD 2-clause license. See the LICENSE
20 file for the full license text.
22 === Supported Platforms
24 *libfido2* is known to work on Linux, macOS, Windows, OpenBSD, and FreeBSD.
26 NFC support is available on Linux and Windows.
30 Documentation is available in troff and HTML formats. An
31 https://developers.yubico.com/libfido2/Manuals/[online mirror of *libfido2*'s documentation]
36 * .NET: https://github.com/borrrden/Fido2Net[Fido2Net]
37 * Go: https://github.com/keys-pub/go-libfido2[go-libfido2]
38 * Perl: https://github.com/jacquesg/p5-FIDO-Raw[p5-FIDO-Raw]
39 * Rust: https://github.com/PvdBerg1998/libfido2[libfido2]
45 The current release of *libfido2* is 1.10.0. Please consult Yubico's
46 https://developers.yubico.com/libfido2/Releases[release page] for source
49 ==== Ubuntu 20.04 (Focal)
51 $ sudo apt install libfido2-1
52 $ sudo apt install libfido2-dev
53 $ sudo apt install libfido2-doc
55 Alternatively, newer versions of *libfido2* are available in Yubico's PPA.
56 Follow the instructions for Ubuntu 18.04 (Bionic) below.
58 ==== Ubuntu 18.04 (Bionic)
60 $ sudo apt install software-properties-common
61 $ sudo apt-add-repository ppa:yubico/stable
63 $ sudo apt install libfido2-dev
67 $ brew install libfido2
69 Or from source, on UNIX-like systems:
73 $ sudo make -C build install
75 Depending on the platform,
76 https://www.freedesktop.org/wiki/Software/pkg-config/[pkg-config] may need to
77 be installed, or the PKG_CONFIG_PATH environment variable set.
79 *libfido2* depends on https://github.com/pjk/libcbor[libcbor],
80 https://www.openssl.org[OpenSSL] 1.1 or newer, and https://zlib.net[zlib].
82 (part of https://www.freedesktop.org/wiki/Software/systemd[systemd]) is also
85 For complete, OS-specific installation instructions, please refer to the
86 `.actions/` (Linux, macOS) and `windows/` directories.
88 On Linux, you will need to add a udev rule to be able to access the FIDO
89 device, or run as root. For example, the udev rule may contain the following:
92 #udev rule for allowing HID access to Yubico devices for FIDO support.
94 KERNEL=="hidraw*", SUBSYSTEM=="hidraw", \
95 MODE="0664", GROUP="plugdev", ATTRS{idVendor}=="1050"