def set_password(self, s, password):
socket = self.socket[s]
salt, v = SRP.new_passwd(self.co.user, password)
cypherv = crypt(long_to_string(v), socket['key'])[0]
self._send_msg(s, {'op': 'set password', 's': salt, 'v': cypherv})
socket['state'] = 5
self.rs.listen_forever(self.nh)
self.rs.doneflag.clear()
def set_password(self, s, password):
socket = self.socket[s]
salt, v = SRP.new_passwd(self.co.user, password)
cypherv = crypt(long_to_string(v), socket['key'])[0]
self._send_msg(s, {'op': 'set password', 's': salt, 'v': cypherv})
socket['state'] = 5
self.rs.listen_forever(self.nh)
self.rs.doneflag.clear()
def crypt(text, key, counter=0L):
keylen, length = len(key), len(text)
pos, cyphertext = 0, []
while pos < length:
scounter = long_to_string(counter, keylen)
hash = sha.new("ctr mode crypt" + key + scounter).digest()
for i in xrange(min(length-pos, len(hash))):
cyphertext.append(chr(ord(hash[i]) ^ ord(text[pos])))
pos += 1
counter += 1
return (''.join(cyphertext), counter)
def hash(s):
"""Hash a value with some hashing algorithm."""
if type(s) != type(''):
s = long_to_string(s)
return sha.new(s).digest()
def host_authenticator(K, A, m):
A = long_to_string(A, 128)
return hmac.new(K, A + m, sha)
def _client_authenticator(K, n, g, user, s, A, B, u):
A = long_to_string(A, 128)
B = long_to_string(B, 128)
u = long_to_string(u, 128)
return hmac.new(K, hash(n) + hash(g) + hash(user) + s + A + B + u, sha)
def hash(s):
"""Hash a value with some hashing algorithm."""
if type(s) != type(''):
s = long_to_string(s)
return sha.new(s).digest()
def host_authenticator(K, A, m):
A = long_to_string(A, 128)
return hmac.new(K, A + m, sha)
def _client_authenticator(K, n, g, user, s, A, B, u):
A = long_to_string(A, 128)
B = long_to_string(B, 128)
u = long_to_string(u, 128)
return hmac.new(K, hash(n) + hash(g) + hash(user) + s + A + B + u, sha)
