def parser(u1, a, b):
k = []
for i in range(len(u1)):
shares = Shamir.split_secret(u1[i], a, b)
tmp = []
for i in shares:
tmp.append(int(i[2:], 16))
k.append(tmp)
k = np.transpose(np.array(k)).tolist()
return k
def _re_key(self, target_nonce, current_sss_tree):
if "key_slot_id" in current_sss_tree:
key_slot = self.data["key_slots"][current_sss_tree["key_slot_id"]]
auth_module = AUTH_TYPE_MAP[key_slot["auth_type"]]
auth_module.lock_key_slot(key_slot, target_nonce)
else:
sss_keys = SecretSharer.split_secret(
target_nonce,
current_sss_tree["required_auth_count"],
len(current_sss_tree["children"]),
)
for new_target, child in zip(sss_keys,
current_sss_tree["children"]):
self._re_key(new_target, child)
def process_image(filename,k,n,users,sender_id):
# AES Key
key = Random.new().read(32)
hexkey = key.encode('hex')
# Encrypting Image and Deleting the file
aes.encrypt_file(key,filename)
os.remove(filename)
# Splitting AES Key into N parts
shares = SecretSharer.split_secret(hexkey,k,n)
# Creating a New Message
msg_id = database.new_message(filename + '.enc', k, sender_id)
users.insert(0,sender_id)
# Updating message queue
database.update_message_queue(users,shares,msg_id)
def secret_sharing():
lines = read_in()
lamb = int(lines)
#lamb = 5
vote = str(lamb)
voteMsg = 'bce' + str(vote)
shares = SecretSharer.split_secret(voteMsg, 2, 3)
#priv, pub = generate_keypair(512)
# read pk.pem and sk.pem
f = file("./pk.pem", "r")
line = f.readline()
line = line.replace("<PublicKey:", "").replace(">", "")
pub = PublicKey(int(line))
array = []
g = file("./sk.pem", "r")
line = g.readline()
line = line.replace("<PrivateKey:", "").replace(">", "")
priv = PrivateKey(int(line.split()[0]), int(line.split()[1]))
# print "Original secret of vote:"
# for item in range(0, 3):
# print shares[item]
# shares = SecretSharer.split_secret(
#"c4bbcb1fbec99d65bf59d85c8cb62ee2db963f0fe106f483d9afa73bd4e39a8a", 2, 3)
#['1-58cbd30524507e7a198bdfeb69c8d87fd7d2c10e8d5408851404f7d258cbcea7', '2-ecdbdaea89d75f8e73bde77a46db821cd40f430d39a11c864e5a4868dcb403ed',
#'3-80ebe2cfef5e40a2cdefef0923ee2bb9d04bc50be5ee308788af98ff609c380a']
sh3 = ["" for x in range(3)]
# print "-------------------------encrypt
# loop-----------------------------------------"
for index in range(0, 3):
tmpCoordinate = shares[index][2:].encode('hex')
crypt_tmpCoordinate = encrypt(pub, int(tmpCoordinate))
sh3[index] = crypt_tmpCoordinate
if index == 2:
print str(crypt_tmpCoordinate) + "$",
else:
print str(crypt_tmpCoordinate),
def shamirs_split(file_object):
text = file_object.read()
list = PlaintextToHexSecretSharer.split_secret(text, 2, 2)
hexcode = SecretSharer.split_secret(list[0][2:], 2, 2)
return hexcode, list[1]
import timeit
from secretsharing import SecretSharer
data = "baf011876aec65950556a5b3048b4d0e0e57008508270629f0d0e91aac916187561c9e94cb2b118633bd1c8174ac10d1dba342ee31f91fa4f83e398f25581448"
n = 2
m = 3
wr = open("resutl.csv", 'w')
while m < 8000:
start = timeit.default_timer()
secret = SecretSharer.split_secret(data, n, m)
stop = timeit.default_timer()
print(str(n) + " of " + str(m))
print(str(stop - start) + " seconds")
wr.write(str(n) + ";" + str(m) + ";" + str(stop - start) + '\n')
n += 1
m += 2
def shareKey(cls, key, agreement_nbr, total_nbr):
shares = SecretSharer.split_secret(key, agreement_nbr, total_nbr)
return shares
def getSharingKey(key, n, k):
return SecretSharer.split_secret(key, k, n)
