Python package for talking to YubiKeys.
The YubiKey is a hardware token for authentication. The main mode of the YubiKey is entering a one time password (or a strong static password) by acting as a USB HID device, but there are things one can do with bi-directional communication:
Configuration. The yubikey_config class should be a feature- wise complete implementation of everything that can be configured on YubiKeys version 1.3 to 2.2 (besides deprecated functions in YubiKey 1.x). See
examples/configure_nist_test_keyfor an example.
Challenge-response. YubiKey 2.2 supports HMAC-SHA1 or Yubico challenge-response operations. See
examples/nist_challenge_responsefor an example.
This library makes it easy to use these two features.
Here is a trivial usage example :
#!/usr/bin/env python """ Get version of connected YubiKey. """ import sys import yubico try: yubikey = yubico.find_yubikey(debug=False) print "Version : %s " % yubikey.version() except yubico.yubico_exception.YubicoError as e: print "ERROR: %s" % e.reason sys.exit(1)
Using the Ubuntu/Debian package manager
If you use a recent Ubuntu release, you should be able to install python-yubico with these commands :
$ sudo add-apt-repository ppa:yubico/stable $ sudo apt-get update $ sudo apt-get install python-yubico
The Launchpad PPA key generated for our packages is 32CBA1A9.
python-yubico is installable via pip:
$ pip install python-yubico
Or, directly from the source package in the standard Python way:
$ cd python-yubico-$ver $ python setup.py install
This requires the
python-setuptools package. You will also need
PyUSB, called python-usb in
pyusb is available on PyPI and may be installed
pip install --pre pyusb The --pre command-line option
indicates that pre-releases of
pyusb may also be searched (only
pyusb are available on PyPI, and pip skips
pre-releases by default). Note that while both the 0.4 branch and
the 1.0 branch are supported, the older 0.4 branch doesn’t support
re-attaching the kernel device driver on close, which will leave
the YubiKey in a state where it is unable to output OTPs until it
has been unplugged and plugged back in again.
If you use Windows, you will require a PyUSB backend. Python-yubico has been tested with libusbx and confirmed working, without the need for replacing the device driver.
Copyright (c) Yubico AB. Licensed under the BSD 2-clause license. See the file COPYING for full licence statement.