def settlement(req,number):
if req.method == 'GET':
req.session['number']=number
chain= req.session['chain']
read = req.session['read']
write= req.session['write']
user = req.session['uid']
txid = req.session['tx_id']
uid = req.session['uid']
dic={}
view = list_Bid.objects.filter(number=number)
pi = Bid.objects.get(number=number)
c1=pyelliptic.ECC(pubkey=bytes.fromhex(pi.pub_key1),privkey=bytes.fromhex(pi.pri_key1),curve="secp256k1")
c2=pyelliptic.ECC(pubkey=bytes.fromhex(pi.pub_key2),privkey=bytes.fromhex(pi.pri_key2),curve="secp256k1")
for b in view:
tx = bitcoin_rpc('gettransaction', b.list_id)
if not tx:
raise Http404('Token錯誤')
raw = tx.get('hex')
op_returns = []
if raw:
decode = tx['decode'] = bitcoin_rpc('decoderawtransaction', raw)
for out in decode.get('vout'):
script = out.get('scriptPubKey')
if not script:
continue
type_ = script.get('type')
if type_ != 'nulldata':
continue
asm = script.get('asm')
if not asm.startswith('OP_RETURN'):
continue
code = asm.split()[-1]
a=json.loads(unhexlify(code).decode())
p1=bytes.fromhex(a['Price'])
de_data=int(c1.decrypt(p1).decode("utf-8"))
b={b.list_id:de_data}
dic.update(b)
dict= sorted(dic.items(), key=lambda d:d[1], reverse = True)
try:
txid=dict[0][0]
price=int(dict[0][1])
test1=gettx(pi.txid)
real=bytes.fromhex(test1[0]['Real_price'])
r_price=int(c2.decrypt(real).decode("utf-8"))
print(r_price)
except:
message = '無人投標 流標!'
#print(test1[0]['Number'])
template = get_template('settlement.html')
html = template.render(locals())
return HttpResponse(html)
def setUpClass(cls):
cls.alice = ec.ECC(curve=crypto_util.BTC_CURVE)
cls.bob = ec.ECC(curve=crypto_util.BTC_CURVE)
cls.bob_pubkey = cls.bob.get_pubkey()
cls.bob_privkey = cls.bob.get_privkey()
cls.alice_pubkey = cls.alice.get_pubkey()
cls.data = "YELLOW SUBMARINE"
def setUpClass(cls):
cls.ecc_curve = "secp256k1"
cls.alice = ec.ECC(curve=cls.ecc_curve)
cls.bob = ec.ECC(curve=cls.ecc_curve)
cls.bob_pubkey = cls.bob.get_pubkey()
cls.bob_privkey = cls.bob.get_privkey()
cls.alice_pubkey = cls.alice.get_pubkey()
cls.data = "YELLOW SUBMARINE"
def generate_ecc_instance(self):
if self.__private_key__ is None or self.__public_key__ is None:
print "ECC keys not provided. Generating ECC keys"
ecc = pyelliptic.ECC(curve='secp256k1')
self.__private_key__ = ecc.get_privkey()
self.__public_key__ = ecc.get_pubkey()
else:
ecc = pyelliptic.ECC(curve='secp256k1', privkey=self.__private_key__, pubkey=self.__public_key__)
return ecc
def send_bid(req):
if req.method == 'GET':
return render(req,'hello.html')
if 'chain' in req.session:
chain= req.session['chain']
read = req.session['read']
write= req.session['write']
user = req.session['uid']
txid = req.session['tx_id']
uid = req.session['uid']
u = req.POST['user']
c = req.POST['chain']
#n = req.POST['number']
n =''.join([random.choice(string.digits) for _ in range(4)])
s = req.POST['start_price']
r = req.POST['real_price']
pro = req.POST['product']
exp = req.POST['exp']
days=range(1,30)
curve = "secp256k1"
key1= pyelliptic.ECC(curve=curve)
key2 = pyelliptic.ECC(curve=curve)
pubkey1=key1.get_pubkey().hex()
prikey1=key1.get_privkey().hex()
pubkey2=key2.get_pubkey().hex()
prikey2=key2.get_privkey().hex()
s2=key1.encrypt(s, key1.get_pubkey()).hex()
r2=key2.encrypt(r, key2.get_pubkey()).hex()
today=datetime.date.today()
# exp_time = str(date(today.year,today.month,today.day+int(exp)))
exp_time=str(datetime.date.today() + datetime.timedelta(days=int(exp)))
message={"Type":"bid","User":u,"Chain":c,"Number":n,"Start_price":s2,"Real_price":r2,"Expiration_date":exp_time}
me=json.dumps(message)
result= OP_RETURN_store(me)
re = result['txids'][0]
#a=(date(today.year,today.month,today.day+int(exp)))
#a=datetime.date.today() + datetime.timedelta(days=int(exp))
aa=datetime.datetime.combine(datetime.date.today()+ datetime.timedelta(days=int(exp)), datetime.time.max)
da=timestamp = time.mktime(aa.timetuple())
bi,_ = Bid.objects.get_or_create(chain = c ,number = n,txid = re,pub_key1 = pubkey1,pri_key1 = prikey1,pub_key2 = pubkey2, pri_key2 = prikey2,exp_time = da,product = pro)
bi.save()
a=1
template = get_template('bid.html')
html= template.render(locals())
return HttpResponse(html)
def test_encrypt_is_static(self):
obj_agent1 = ec.ECC(curve=crypto_util.BTC_CURVE)
obj_agent2 = ec.ECC(curve='sect283k1')
cls_agent3 = ec.ECC
encd1 = obj_agent1.encrypt(self.data, self.bob_pubkey)
encd2 = obj_agent2.encrypt(self.data, self.bob_pubkey)
encd3 = cls_agent3.encrypt(self.data, self.bob_pubkey)
dcd1 = self.bob.decrypt(encd1)
dcd2 = self.bob.decrypt(encd2)
dcd3 = self.bob.decrypt(encd3)
self.assertEqual(dcd1, dcd2)
self.assertEqual(dcd2, dcd3)
def bidding(req,number):
if 'chain' in req.session:
chain= req.session['chain']
read = req.session['read']
write= req.session['write']
user = req.session['uid']
txid= req.session['tx_id']
try:
b = Bid.objects.get(number=number)
c1=pyelliptic.ECC(pubkey=bytes.fromhex(b.pub_key1),privkey=bytes.fromhex(b.pri_key1),curve="secp256k1")
start=gettx(b.txid)
#print(start[0]['Start_price'])
sp=bytes.fromhex(start[0]['Start_price'])
#print(sp)
s_price=int(c1.decrypt(sp).decode("utf-8"))
req.session['number']=number
if write=='yes':
a=5
else:
a=3
except:
raise Http404('找不到標案編號')
#template = get_template('price.html')
#html= template.render(locals())
#return HttpResponse(html)
return render(req,'price.html',{'b':b,'user':user,'s_price':s_price,'chain':chain,'read':read,'write':write,'txid':txid,'a':a})
def addMixpeer(self, id, rank, p2p_host, p2p_port, web_addr, public_key):
""" Add a mixing peer to a mixnet's protocol state.
Expected parameters:
- id The peer's ID
- rank The peer's rank within the particular mixnet
- p2p_host Hostname of the peer's P2P server
- p2p_port Port used by the peer's P2P server
- web_addr Address of the peer's web interface, without "https://"
- public_key Hexadecimal presentation of the peer's EC public key
"""
crypt = pyelliptic.ECC(curve='secp256k1',
pubkey=public_key.decode('hex'))
peer = {
'id': id,
'rank': rank,
'web':
'http://' + web_addr, # FIXME: Use https when TLS is in place!
'host': p2p_host,
'port': p2p_port,
'pub': public_key,
'crypt': crypt,
'instance': None
}
self._mixing_peers[rank] = peer
def __init__(self, my_ip, my_port, store_file):
TransportLayer.__init__(self, my_ip, my_port)
self._myself = ec.ECC(curve='secp256k1')
self.nick_mapping = {}
self.nickname, self.secret, self.pubkey = self.load_crypto_details(
store_file)
self._log = logging.getLogger(self.__class__.__name__)
def main():
if len(sys.argv) < 4:
#print ("usage: python push-encryption.py <client-pub-key> <server-auth> <message>")
sys.exit(1)
# generate ephemerial public key using ecdh
serverECDH = pyelliptic.ECC(curve="prime256v1")
serverPubKey = b64e(serverECDH.get_pubkey()[1:])
http_ece.keys[serverPubKey] = serverECDH
http_ece.labels[serverPubKey] = "P-256"
salt = os.urandom(16)
clientPubKey64 = sys.argv[1]
clientPubKey = base64.urlsafe_b64decode(clientPubKey64)
clientAuthSecret64 = sys.argv[2]
clientAuthSecret = base64.urlsafe_b64decode(clientAuthSecret64)
messageRaw = sys.argv[3]
messageRaw = messageRaw.encode('utf8')
messageRaw = buffer(messageRaw)
messageEncrypted = http_ece.encrypt(messageRaw,
salt=salt,
keyid=serverPubKey,
dh=clientPubKey,
authSecret=clientAuthSecret)
print("%s,%s,%s" % (base64.urlsafe_b64encode(salt),
base64.urlsafe_b64encode(serverECDH.get_pubkey()),
base64.b64encode(messageEncrypted)),
end="")
def __init__(self, my_ip, my_port, market_id, store_file):
TransportLayer.__init__(self, my_ip, my_port)
self._myself = ec.ECC(curve='secp256k1')
self.nick_mapping = {}
# load nickname, secret and pubkey from store_file, which is a JSON file in ppl
self.nickname, self.secret, self.pubkey = self.load_crypto_details(store_file)
# Connect to database
MONGODB_URI = 'mongodb://localhost:27017'
_dbclient = MongoClient()
self._db = _dbclient.openbazaar
self.settings = self._db.settings.find_one({'id':"%s"%market_id})
self.market_id = market_id
# commented out to test entangled
"""
if self.settings:
self.nickname = self.settings['nickname'] if self.settings.has_key("nickname") else ""
self.secret = self.settings['secret']
self.pubkey = self.settings['pubkey']
else:
self.nickname = 'Default'
key = bitcoin.EllipticCurveKey()
key.new_key_pair()
hexkey = key.secret.encode('hex')
self._db.settings.insert({"id":'%s'%market_id, "secret":hexkey, "pubkey":bitcoin.GetPubKey(key._public_key.pubkey, False).encode('hex')})
self.settings = self._db.settings.find_one({'id':"%s"%market_id})
"""
self._log = logging.getLogger(self.__class__.__name__)
def __init__(self, pubkey_hex=None, privkey_hex=None):
"""
Convert the keys and initialize the cryptor implementation.
@param pubkey_hex: Uncompressed BTC public key in hex format.
@type pubkey_hex: str
@param privkey_hex: Compressed BTC private key in hex format.
@type privkey_hex: str
"""
if privkey_hex is None and pubkey_hex is None:
raise ValueError("Neither public nor private key was specified.")
if pubkey_hex is None:
pubkey_hex = arithmetic.privkey_to_pubkey(privkey_hex)
pubkey_bin = pubkey_to_pyelliptic(pubkey_hex)
self.has_privkey = privkey_hex is not None
if self.has_privkey:
privkey_bin = privkey_to_pyelliptic(privkey_hex)
else:
privkey_bin = None
self._ec = ec.ECC(curve=BTC_CURVE,
pubkey=pubkey_bin,
privkey=privkey_bin)
def makeCryptor(privkey):
private_key = a.changebase(privkey, 16, 256, minlen=32)
public_key = pointMult(private_key)
privkey_bin = '\x02\xca\x00\x20' + private_key
pubkey_bin = '\x02\xca\x00\x20' + public_key[1:-32] + '\x00\x20' + public_key[-32:]
cryptor = pyelliptic.ECC(curve='secp256k1',privkey=privkey_bin,pubkey=pubkey_bin)
return cryptor
def test_encode(self):
recv_key = pyelliptic.ECC(curve="prime256v1")
subscription_info = self._gen_subscription_info(recv_key)
data = "Mary had a little lamb, with some nice mint jelly"
push = WebPusher(subscription_info)
encoded = push.encode(data)
keyid = base64.urlsafe_b64encode(recv_key.get_pubkey()[1:])
http_ece.keys[keyid] = recv_key
http_ece.labels[keyid] = 'P-256'
# Convert these b64 strings into their raw, binary form.
raw_salt = base64.urlsafe_b64decode(push._repad(encoded['salt']))
raw_dh = base64.urlsafe_b64decode(push._repad(encoded['crypto_key']))
raw_auth = base64.urlsafe_b64decode(
push._repad(subscription_info['keys']['auth']))
decoded = http_ece.decrypt(buffer=encoded['body'],
salt=raw_salt,
dh=raw_dh,
keyid=keyid,
authSecret=raw_auth)
eq_(decoded.decode('utf8'), data)
def private(passphrase):
priv = hashlib.sha256("elliptic" +
hashlib.sha256(passphrase).digest()).digest()
px, py = priv2pub(priv)
key = pe.ECC(curve=CURVE)
key._set_keys(px, py, priv)
return key
def generate_new_keypair(self):
# Generate new keypair
key = ec.ECC(curve='secp256k1')
self.secret = key.get_privkey().encode('hex')
pubkey = key.get_pubkey()
signedPubkey = key.sign(pubkey)
self.pubkey = pubkey.encode('hex')
self._myself = key
# Generate a node ID by ripemd160 hashing the signed pubkey
guid = hashlib.new('ripemd160')
guid.update(signedPubkey)
self.guid = guid.digest().encode('hex')
# Insert new record for the new user
#self._db.settings.insert({"id":'%s' % market_id, "secret":self.secret, "pubkey":self.pubkey, "guid":self.guid})
self._db.settings.update({"id": '%s' % self._market_id}, {
"$set": {
"secret": self.secret,
"pubkey": self.pubkey,
"guid": self.guid
}
}, True)
def test_asymmetric_sing_ver(self):
signature = self.bob.sign("Hello Alice")
bob_pubkey = self.bob.get_pubkey()
self.assertTrue(
ec.ECC(pubkey=bob_pubkey).verify(signature, "Hello Alice")
)
def __init__(self, my_ip, my_port, market_id):
self._log = logging.getLogger('[%s] %s' %
(market_id, self.__class__.__name__))
# Connect to database
MONGODB_URI = 'mongodb://localhost:27017'
_dbclient = MongoClient()
self._db = _dbclient.openbazaar
self._market_id = market_id
self.nick_mapping = {}
self._uri = "tcp://%s:%s" % (my_ip, my_port)
# Set up
self._setup_settings()
self._dht = DHT(market_id, self.settings)
self._myself = ec.ECC(pubkey=self.pubkey.decode('hex'),
privkey=self.secret.decode('hex'),
curve='secp256k1')
TransportLayer.__init__(self, market_id, my_ip, my_port, self.guid)
# Set up callbacks
self.add_callback('ping', self._dht._on_ping)
self.add_callback('findNode', self._dht._on_findNode)
self.add_callback('findNodeResponse', self._dht._on_findNodeResponse)
def __init__(self, key, algorithm):
if algorithm not in self.valid_hash_algs:
raise JWKError('hash_alg: %s is not a valid hash '
'algorithm', algorithm)
self.curve = self.curve_map.get(algorithm)
sha_map = {
'ES256': 'sha256',
'ES384': 'sha384',
'ES512': 'sha512',
}
if isinstance(key, dict):
self.prepared_key = self._process_jwk(key, sha_map[algorithm])
return
if isinstance(key, six.string_types):
if isinstance(key, six.text_type):
key = key.encode('utf-8')
# be a bit smart about what you're doing.
# keys must be in raw form, not ASN1, so convert if needed.
# The private key provided for testing is a base64 ASN1 that has a
# PEM wrapper. This may take a bit of guesswork...
der = self.pem_to_der(key)
# The key dictates the curve, this emulates the ecdsa lib
(self.curve, raw_key, raw_pub) = self.asn_to_raw(der, self.curve)
self.prepared_key = pyelliptic.ECC(curve=self.curve,
privkey=raw_key,
pubkey=raw_pub,
hasher=sha_map[algorithm])
return
raise JWKError('Unable to parse an ECKey from key: %s' % key)
def create_ecc(priv_key, curve=DEFAULT_CURVE):
# enable both hexilified or unhexlified priv_key input
try:
priv_key = unhexlify(priv_key)
except Exception:
pass
pub_key = ecc_priv_to_pub_key(priv_key, curve=curve)
return pyelliptic.ECC(privkey=priv_key, pubkey=pub_key, curve=curve)
def sign(self, private_key):
signature = pyelliptic.ECC(curve='secp256k1',
privkey=private_key,
pubkey=self._source.decode('hex')).sign(
self.to_signable()).encode('hex')
self._signature = signature
self._tx_hash = self._calculate_tx_hash()
return signature
def makeCryptor(privkey):
privkey_bin = '\x02\xca\x00 ' + a.changebase(privkey, 16, 256, minlen=32)
pubkey = a.changebase(a.privtopub(privkey), 16, 256, minlen=65)[1:]
pubkey_bin = '\x02\xca\x00 ' + pubkey[:32] + '\x00 ' + pubkey[32:]
cryptor = pyelliptic.ECC(curve='secp256k1',
privkey=privkey_bin,
pubkey=pubkey_bin)
return cryptor
def get_shared_secret(server_pub_key, private_key):
user_pub_key = get_pub_key(private_key)
network_code = get_network_code(private_key)
uncompressed_user_key = binascii.unhexlify(pybitcointools.decompress(user_pub_key))
uncompressed_server_key = binascii.unhexlify(pybitcointools.decompress(server_pub_key))
user_priv_key_bin = binascii.unhexlify(pybitcointools.encode_privkey(private_key, 'hex', network_code))
user = pyelliptic.ECC(privkey=user_priv_key_bin, pubkey=uncompressed_user_key, curve='secp256k1')
shared_secret = user.get_ecdh_key(uncompressed_server_key)
return shared_secret
def private(passphrase):
if six.PY3 and isinstance(passphrase, six.string_types):
passphrase = passphrase.encode()
priv = hashlib.sha256(b"elliptic" +
hashlib.sha256(passphrase).digest()).digest()
px, py = priv2pub(priv)
key = pe.ECC(curve=CURVE)
key._set_keys(px, py, priv)
return key
def makePrivCryptor(privkey_hex):
privkey_bin = '\x02\xca\x00 ' + arithmetic.changebase(
privkey_hex, 16, 256, minlen=32)
pubkey_hex = arithmetic.privkey_to_pubkey(privkey_hex)
pubkey_bin_bare = arithmetic.changebase(pubkey_hex, 16, 256, minlen=65)[1:]
pubkey_bin = '\x02\xca\x00 ' + pubkey_bin_bare[:
32] + '\x00 ' + pubkey_bin_bare[
32:]
cryptor = ec.ECC(curve='secp256k1', privkey=privkey_bin, pubkey=pubkey_bin)
return cryptor
def test_send_no_headers(self, mock_post):
recv_key = pyelliptic.ECC(curve="prime256v1")
subscription_info = self._gen_subscription_info(recv_key)
data = "Mary had a little lamb"
WebPusher(subscription_info).send(data)
eq_(subscription_info.get('endpoint'), mock_post.call_args[0][0])
pheaders = mock_post.call_args[1].get('headers')
eq_(pheaders.get('ttl'), '0')
ok_('encryption' in pheaders)
eq_(pheaders.get('content-encoding'), 'aesgcm')
def encrypt(self, data):
try:
if self.pub is not None:
hexkey = hexToPubkey(self.pub)
return ec.ECC(curve='secp256k1').encrypt(data, hexkey)
else:
self.log.error('Public Key is missing')
return False
except Exception as e:
self.log.error('Encryption failed. %s' % e)
def setCryptoParams(self, private_key_hex, public_key_hex):
try:
# Do not decode here as the hex presentation is used more often (decode only for initializing ECC)
self._prvkey = private_key_hex
self._pubkey = public_key_hex
except TypeError:
raise TypeError('Could not decode keys.')
self._crypter = pyelliptic.ECC(curve='secp256k1',
privkey=self._prvkey.decode('hex'),
pubkey=self._pubkey.decode('hex'))
return
def bid_price(req):
if req.method =='GET':
return render(req,'hello.html')
if 'chain' in req.session:
chain= req.session['chain']
read = req.session['read']
write= req.session['write']
user = req.session['uid']
txid= req.session['tx_id']
c = req.POST['chain']
n = req.POST['number']
#n=''.join([random.choice(string.digits) for _ in range(4)])
u = req.POST['user']
b = req.POST['bid_txid']
p = req.POST['price']
k=Bid.objects.get(txid=b)
key1=k.pub_key1
key2=k.pub_key2
pk1=pyelliptic.ECC(pubkey=bytes.fromhex(k.pub_key1),privkey=bytes.fromhex(k.pri_key1),curve="secp256k1")
pk2=pyelliptic.ECC(pubkey=bytes.fromhex(k.pub_key2),privkey=bytes.fromhex(k.pri_key2),curve="secp256k1")
uk=pk2.encrypt(u, pk2.get_pubkey()).hex()
pp=pk1.encrypt(p, pk1.get_pubkey()).hex()
message={"Type":"bid_price","Chain":c,"Number":n,"User":uk,"Price":pp}
me=json.dumps(message)
result= OP_RETURN_store(me)
be = result['txids'][0]
ls= Bid.objects.get(txid=b,number=n)
#pi,_ = list_Bid.objects.get_or_create(list_id = be,number=n,price=p,bid_itxid=ls.txid)
pi = list_Bid.objects.create(list_id = be,number=n,price=p,bid_txid=ls)
pi.save()
a=4
template = get_template('price.html')
html= template.render(locals())
return HttpResponse(html)
def encrypt(self, data):
try:
if self._pub is not None:
result = ec.ECC(curve='secp256k1').encrypt(
data, CryptoPeerConnection.hexToPubkey(self._pub))
return result
else:
self._log.error('Public Key is missing')
return False
except Exception as e:
self._log.error('Encryption failed. %s' % e)