def get_address(self, pubkey):
""" compute the nem-py address from the public one """
s = sha3_256()
s.update(unhexlify(pubkey))
sha3_pubkey = s.digest()
h = hashlib.new('ripemd160')
h.update(sha3_pubkey)
ripe = h.digest()
if self.network == 'testnet':
version = b"\x98" + ripe
else:
version = b"\x68" + ripe
s2 = sha3_256()
s2.update(version)
checksum = s2.digest()[0:4]
return base64.b32encode(version + checksum)
def decrypt(password, encrypted_seed, iv, seed_hash):
key = kdf(password)
cipher = AES.new(key, AES.MODE_CBC, iv)
seed = unpad(cipher.decrypt(encrypted_seed))
if seed is None:
return None
bkp = gen_bkp(seed)
if sha3_256(seed + b'\x02').hexdigest() == seed_hash:
return seed
else:
return None
def sha3(x):
return python_sha3.sha3_256(x).digest()
def keccak_256(s):
#return Keccak().Keccak((len(s)*4, s), 1088, 512, 0x01, 32*8, False).lower()
k = python_sha3.sha3_256()
k.update(s)
return k.hexdigest()
def sha3(x):
return python_sha3.sha3_256(x).digest()
def sha3(x): return python_sha3.sha3_256(x).digest() def pbkdf2(x): return PBKDF2._pbkdf2(x,'',1000)[:16]
def to_hash_sha3_256(m):
return sha3_256(m).digest()
def gen_bkp(seed):
return sha3_256(b'' + seed + b'\0x02').hexdigest()
