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Intro ===== Yoracle is an authenticator for yubikeys. It uses a sqlite database as backend. The first time a yubikey is used after it's plugged in you have to prefix the yubikey token (what you get when you press the button) with a static password. That password will not have to be used again until the Yubikey is unplugged and plugged back in. Prerequisites ============= * Install web.py from webpy.org (http://webpy.org/download) wget http://webpy.org/static/web.py-0.33.tar.gz tar xvzf web.py-0.33.tar.gz cd web.py-0.33 sudo python setup.py install Also exists in Debian, but Debian Lenny has too old a version. * Yubikey with a 12 modhex-character id, and know its AES key. In this example the key id is "hjhghliehbhu". ykpersonalize \ -a$(hexdump -n16 /dev/random -e '/1 "%02x"') \ -ofixed=hjhghliehbhu Modhex is Yubikeys encoding scheme where not all characters are allowed. See http://www.yubico.com/developers/modhex/ Installing ========== * Create key database: sqlite3 yoracle.sqlite < schema.sql * generate generate the hash for the static key for a yubikey echo -n myPass123 | sha1sum a230c761d781eaec2a3495d61be8301f42f80d1d - * Put your key in the database sqlite3 yoracle.sqlite insert into yubikey(yubikeyid, aeskey,password, counter, counter_session, secret_id, timestamp, passwordok) values('xxxaaaxxxaaa', -- key ID '12312312313212312312312312312312', -- AES key 'a230c761d781eaec2a3495d61be8301f42f80d1d', -- static key 0,0, '000000000000', -- key uid. normally 000000000000 0, 0); * Configure for user (only needed for local authentication, not yoweb.py) echo xxxaaaxxxaaa http://localhost/placeholder?token=%(token)s > ~/.yubikeys * Test the authentication ./yoracle.py myusernamehere enter password and press yubikey here Should return "OK" * Start a web server authenticator ./yoweb.py 8080