t.p.o.OTP(OTPAuthenticator) : class documentation

An automatic version of the OTP-Authenticator

Updates the sequence and the keeps last approved password on success On the next authentication, the stored password is hashed and checked up against the one given by the user. If they match, the sequencecounter is decreased and the circle is closed.

This object should be glued to each user

Note: It does NOT reset the sequence when the combinations left approach zero, This has to be done manuelly by instancing a new object

Method	__init__	Initialize the OTP-Sequence, and discard the password
Method	challenge	Return a challenge string
Method	authenticate	Test the phrase against the last challenge issued

Inherited from OTPAuthenticator:

Method	generateSeed	Return a 10 char random seed, with 6 lowercase chars and 4 digits
Method	foldDigest	Undocumented
Method	foldDigest128	Fold a 128 bit digest to 64 bit
Method	foldDigest160	Fold a 160 bit digest to 64 bit
Method	hashUpdate	Run through the hash and fold to 64 bit
Method	generateOTP	Return a 64 bit OTP based on inputs Run through makeReadable to get a 6 word pass-phrase
Method	calculateParity	Calculate the parity from a 64bit OTP
Method	makeReadable	Returns a 6 word pass-phrase from a 64bit OTP
Method	parsePhrase	Decode the phrase, and return a 64bit OTP I will raise Unauthorized if the parity is wrong TODO: Add support for hex (MUST) and the '2nd scheme'(SHOULD)