Import Upstream version 1.3.3

examples/configure_nist_test_key

@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+"""
+Set up a YubiKey with a NIST PUB 198 A.2
+20 bytes test vector in Slot 2 (variable input)
+"""
+
+import sys
+import struct
+import yubico
+import six
+
+slot=2
+
+try:
+    YK = yubico.find_yubikey(debug=True)
+    print("Version : %s " % YK.version())
+
+    Cfg = YK.init_config()
+    key = b'h:303132333435363738393a3b3c3d3e3f40414243'
+    Cfg.mode_challenge_response(key, type='HMAC', variable=True)
+    Cfg.extended_flag('SERIAL_API_VISIBLE', True)
+
+    user_input = six.moves.input('Write configuration to slot %i of YubiKey? [y/N] : ' % slot )
+    if user_input in ('y', 'ye', 'yes'):
+        YK.write_config(Cfg, slot=slot)
+        print("\nSuccess!")
+    else:
+        print("\nAborted")
+except yubico.yubico_exception.YubicoError as inst:
+    print("ERROR: %s" % inst.reason)
+    sys.exit(1)