def to_string(self):
# VerifyingKey.from_string(vk.to_string()) == vk as long as the
# curves are the same: the curve itself is not included in the
# serialized form
order = self.pubkey.order
x_str = number_to_string(self.pubkey.point.x(), order)
y_str = number_to_string(self.pubkey.point.y(), order)
return x_str + y_str
def to_der(self):
order = self.pubkey.order
x_str = number_to_string(self.pubkey.point.x(), order)
y_str = number_to_string(self.pubkey.point.y(), order)
point_str = "\x00\x04" + x_str + y_str
return der.encode_sequence(der.encode_sequence(encoded_oid_ecPublicKey,
self.curve.encoded_oid),
der.encode_bitstring(point_str))
def to_string(self):
# VerifyingKey.from_string(vk.to_string()) == vk as long as the
# curves are the same: the curve itself is not included in the
# serialized form
order = self.pubkey.order
x_str = number_to_string(self.pubkey.point.x(), order)
y_str = number_to_string(self.pubkey.point.y(), order)
return x_str + y_str
def to_der(self):
order = self.pubkey.order
x_str = number_to_string(self.pubkey.point.x(), order)
y_str = number_to_string(self.pubkey.point.y(), order)
point_str = "\x00\x04" + x_str + y_str
return der.encode_sequence(der.encode_sequence(encoded_oid_ecPublicKey,
self.curve.encoded_oid),
der.encode_bitstring(point_str))
def list_network_conf_files(self):
'''
Builds a list of tuples with configuration files for wpa_supplicant or other
strategies, that have been stored due to previous connections.
The structure of the tuple is (autonumeric, dir, filename)
'''
from conf import Conf
import os, logging, util
logger = logging.getLogger(Conf.LOGGER_NAME)
network_index = 1
stored_networks = list()
networks_dir = self.conf_files[Conf.PATH_NETWORKS_DIR]
if Conf.DEBUG_MODE:
logger.info("Scanning " + networks_dir)
#candidate_lists will be a lists of lists because it returns one list per subdirectory to walk
candidate_lists = [conf_file for root,dirs,conf_file in
os.walk(networks_dir)]
not_ser = lambda x: not util.is_net_serialization_filename(x)
#traverse all lists in lists return all files in the hierarchy
for clist in candidate_lists:
for conf_file in filter(not_ser, clist):
order = util.number_to_string(network_index,2)
stored_networks.append((order, networks_dir, conf_file))
network_index += 1
return stored_networks
def generate_k(order, secexp, hash_func, data):
'''
order - order of the DSA generator used in the signature
secexp - secure exponent (private key) in numeric form
hash_func - reference to the same hash function used for generating hash
data - hash in binary form of the signing data
'''
qlen = bit_length(order)
holen = hash_func().digest_size
rolen = (qlen + 7) / 8
bx = number_to_string(secexp, order) + bits2octets(data, order)
# Step B
v = b('\x01') * holen
# Step C
k = b('\x00') * holen
# Step D
k = hmac.new(k, v + b('\x00') + bx, hash_func).digest()
# Step E
v = hmac.new(k, v, hash_func).digest()
# Step F
k = hmac.new(k, v + b('\x01') + bx, hash_func).digest()
# Step G
v = hmac.new(k, v, hash_func).digest()
# Step H
while True:
# Step H1
t = b('')
# Step H2
while len(t) < rolen:
v = hmac.new(k, v, hash_func).digest()
t += v
# Step H3
secret = bits2int(t, qlen)
if secret >= 1 and secret < order:
return secret
k = hmac.new(k, v + b('\x00'), hash_func).digest()
v = hmac.new(k, v, hash_func).digest()
def to_string(self):
secexp = self.privkey.secret_multiplier
s = number_to_string(secexp, self.privkey.order)
return s
def to_string_just_y_point(self):
order = self.pubkey.order
y_str = number_to_string(self.pubkey.point.y(), order)
return y_str
def to_string_just_x_point(self):
order = self.pubkey.order
x_str = number_to_string(self.pubkey.point.x(), order)
return x_str
def to_string(self):
secexp = self.privkey.secret_multiplier
s = number_to_string(secexp, self.privkey.order)
return s
def generate_k(order, secexp, hash_func, data):
'''
order - order of the DSA generator used in the signature
secexp - secure exponent (private key) in numeric form
hash_func - reference to the same hash function used for generating hash
data - hash in binary form of the signing data
'''
qlen = bit_length(order)
holen = hash_func().digest_size
rolen = (qlen + 7) / 8
bx = number_to_string(secexp, order) + bits2octets(data, order)
# debug(hex(order), 'input - `order`')
# debug(data, 'input - `data`')
# debug(hex(secexp), 'input - `secexp`')
# debug(qlen, 'setup - `qlen`')
# debug(holen, 'setup - `holen`')
# debug(rolen, 'setup - `rolen`')
# debug(bx, 'setup - `bx`')
# Step B
v = b('\x01') * holen
# Step C
k = b('\x00') * holen
# Step D
k = hmac.new(k, v + b('\x00') + bx, hash_func).digest()
# debug(k, 'Step d - `k`')
# Step E
v = hmac.new(k, v, hash_func).digest()
# debug(v, 'Step e - `v`')
# Step F
k = hmac.new(k, v + b('\x01') + bx, hash_func).digest()
# debug(k, 'Step f - `k`')
# Step G
v = hmac.new(k, v, hash_func).digest()
# debug(v, 'Step g - `v`')
# Step H
while True:
# Step H1
t = b('')
# Step H2
while len(t) < rolen:
v = hmac.new(k, v, hash_func).digest()
t += v
# debug(t, 'Step h.2.END - `t`')
# Step H3
secret = bits2int(t, qlen)
# debug(hex(secret), 'Step h.3.a - secret (`k`)')
if secret >= 1 and secret < order:
return secret
k = hmac.new(k, v + b('\x00'), hash_func).digest()
# debug(k, 'Step h.3.b - `k`')
v = hmac.new(k, v, hash_func).digest()
