Python package for talking to YubiKeys.

Author : Fredrik Thulin <fredrik@yubico.com>

Copyright (c) 2011, 2012 Yubico AB
See the file COPYING for licence statement.


================
  Introduction
================

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.

  1) 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_key for an example.

  2) Challenge-response. YubiKey 2.2 supports HMAC-SHA1 or Yubico
     challenge-response operations.

     See examples/nist_challenge_response for an example.


================
    Example
================

Here is a trivial usage example :

    #!/usr/bin/env python
    """ Get version of connected YubiKey. """

    import sys
    import yubico

    debug = False

    try:
        YK = yubico.find_yubikey(debug=debug)
	print "Version : %s " % YK.version()
    except yubico.yubico_exception.YubicoError as inst:
	print "ERROR: %s" % inst.reason
        sys.exit(1)


================
  Installation
================

python-yubico is installable in the standard-python way :

  $ cd python-yubico-$ver
  $ python setup.py install

This requires the python-setuptools (well, the package is called
that in Debian/Ubuntu). You will also need the Python USB package
from http://pyusb.berlios.de/ - package called python-usb in
Debian/Ubuntu.

I use Ubuntu, so I created a PPA (Personal Package Archive) for
easy installation (and removal) on Ubuntu systems.

If you use a recent Ubuntu release, you should be able to install
python-yubico with these commands :

  $ sudo add-apt-repository ppa:fredrikt/yubico
  $ sudo apt-get update
  $ sudo apt-get install python-yubico

The Launchpad PPA key generated for my packages is C7E50642.


================

Comments, feedback and patches welcome!