def to_xpub(self):
data = '0488b21e'.decode('hex')
data += ('%02x' % self.depth).decode('hex')
data += self.fingerprint
if self.hard:
data += ('%08x' % (self.child_num | 2**31)).decode('hex')
else:
data += ('%08x' % self.child_num).decode('hex')
data += self.chaincode
data += self.pubkey
return bitcoin.EncodeBase58Check(data)
def SerializeExtendedPublicKey(depth, parent_fingerprint, child_number,
chain_code, cK):
"""Yield a base58 encoded 78-byte binary blob corresponding to this node."""
vch = PRIVATE_TEST__VERSION_LOOKUP[(False, False)]
vch += chr(depth)
vch += parent_fingerprint
vch += struct.pack(">L", child_number)
vch += chain_code
# ba += b'\0' + self.secret_exponent_bytes
vch += cK
return bitcoin.EncodeBase58Check(vch)
def parse_xpubkey(self, pubkey):
assert is_extended_pubkey(pubkey)
pk = pubkey.decode('hex')
pk = pk[1:]
xkey = bitcoin.EncodeBase58Check(pk[0:78])
dd = pk[78:]
s = []
while dd:
n = int(bitcoin.rev_hex(dd[0:2].encode('hex')), 16)
dd = dd[2:]
s.append(n)
assert len(s) == 2
return xkey, s
def parse_xpubkey(self, pubkey):
assert pubkey[0:2] == 'ff'
pk = bfh(pubkey)
pk = pk[1:]
xkey = bitcoin.EncodeBase58Check(pk[0:78])
dd = pk[78:]
s = []
while dd:
n = int(bitcoin.rev_hex(bh2u(dd[0:2])), 16)
dd = dd[2:]
s.append(n)
assert len(s) == 2
return xkey, s
def to_xprv(self):
if self.privkey == None:
raise Exception('BIP32.to_xprv: no private key available')
data = '0488ade4'.decode('hex')
data += ('%02x' % self.depth).decode('hex')
data += self.fingerprint
if self.hard:
data += ('%08x' % (self.child_num | 2**31)).decode('hex')
else:
data += ('%08x' % self.child_num).decode('hex')
data += self.chaincode
data += chr(0) + self.privkey
return bitcoin.EncodeBase58Check(data)
def SecretToASecret(secret, compressed=False):
addrtype = 0
vchIn = chr((addrtype + 128) & 255) + secret
if compressed: vchIn += '\01'
return bitcoin.EncodeBase58Check(vchIn)
