def __call__(self, C=None, Q=None, P=None, S=None, T=None):
datainput = self.ocrasuite + '\0'
if self.C:
if C is None or not isinstance(C, int) or C < 0 or C > 2**64:
raise ValueError, ('Invalid counter value', C)
datainput += hotp.int2beint64(C)
if self.Q:
if Q is None or not isinstance(Q, str) or len(Q) > self.Q[1]:
raise ValueError, 'challenge'
if self.Q[0] == 'N' and not Q.isdigit():
raise ValueError, 'challenge'
if self.Q[0] == 'A' and not Q.isalnum():
raise ValueError, 'challenge'
if self.Q[0] == 'H':
try:
int(Q, 16)
except ValueError:
raise ValueError, 'challenge'
datainput += Q
datainput += '0' * (128-len(Q))
if self.P:
if P is None:
raise ValueError, 'Pin/Password'
datainput += self.P(P).digest()
if self.S:
if S is None or len(S) != self.S:
raise ValueError, 'session'
datainput += S
if self.T:
if not isinstance(T, int):
raise ValueError, 'timestamp'
datainput += hotp.int2beint64(int(T / self.T))
return datainput
def __call__(self, C=None, Q=None, P=None, P_digest=None, S=None, T=None,
T_precomputed=None, Qsc=None):
datainput = ''
if self.C:
try:
C = int(C)
if C < 0 or C > 2**64:
raise Exception()
except:
raise ValueError, ('Invalid counter value', C)
datainput += hotp.int2beint64(int(C))
if self.Q:
max_length = self.Q[1]
if Qsc is not None:
# Mutual Challenge-Response
Q = Qsc
max_length *= 2
if Q is None or not isinstance(Q, str) or len(Q) > max_length:
raise ValueError, 'challenge'
if self.Q[0] == 'N' and not Q.isdigit():
raise ValueError, 'challenge'
if self.Q[0] == 'A' and not Q.isalnum():
raise ValueError, 'challenge'
if self.Q[0] == 'H':
try:
int(Q, 16)
except ValueError:
raise ValueError, 'challenge'
if self.Q[0] == 'N':
Q = hex(int(Q))[2:]
Q += '0' * (len(Q) % 2)
Q = Q.decode('hex')
if self.Q[0] == 'A':
pass
if self.Q[0] == 'H':
Q = Q.decode('hex')
datainput += Q
datainput += '\0' * (128-len(Q))
if self.P:
if P_digest:
if len(P) == self.P.digest_size:
datainput += P_digest
elif len(P) == 2*self.P.digest_size:
datainput += P_digest.decode('hex')
else:
raise ValueError, ('Pin/Password digest invalid', P_digest)
elif P is None:
raise ValueError, 'Pin/Password missing'
else:
datainput += self.P(P).digest()
if self.S:
if S is None or len(S) != self.S:
raise ValueError, 'session'
datainput += S
if self.T:
if is_int(T_precomputed):
datainput += hotp.int2beint64(int(T_precomputed))
elif is_int(T):
datainput += hotp.int2beint64(int(T / self.T))
else:
raise ValueError, 'timestamp'
return datainput