def to_string(self):
# See BIP 32: https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
bytes = ("" + to_bytes(self.network.hd_public_key, length=4) +
to_bytes(self.depth, length=1) +
to_bytes(self.parent, length=4) +
to_bytes(self.index, length=4) + self.chain +
self.to_public_key().to_bytes())
return utils.encoding.b2a_hashed_base58(bytes)
def to_string(self):
# See BIP 32: https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
bytes = (
"" + to_bytes(self.network.hd_private_key, length=4) +
to_bytes(self.depth, length=1) + to_bytes(self.parent, length=4) +
to_bytes(self.index, length=4) + self.chain +
'\0' # this zero is prepended to private keys. HDPublicKey doesn't do it
+ self.to_private_key().to_bytes())
return utils.encoding.b2a_hashed_base58(bytes)
def to_string(self):
# See BIP 32: https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
bytes = (""
+ to_bytes(self.network.hd_public_key, length = 4)
+ to_bytes(self.depth, length = 1)
+ to_bytes(self.parent, length = 4)
+ to_bytes(self.index, length = 4)
+ self.chain
+ self.to_public_key().to_bytes()
)
return utils.encoding.b2a_hashed_base58(bytes)
def to_string(self):
# See BIP 32: https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
bytes = (""
+ to_bytes(self.network.hd_private_key, length = 4)
+ to_bytes(self.depth, length = 1)
+ to_bytes(self.parent, length = 4)
+ to_bytes(self.index, length = 4)
+ self.chain
+ '\0' # this zero is prepended to private keys. HDPublicKey doesn't do it
+ self.to_private_key().to_bytes()
)
return utils.encoding.b2a_hashed_base58(bytes)
def derive(self, index, hardened = False):
# TODO Is index Valid?
if index < HARDENED_START and hardened:
index += HARDENED_START
if hardened:
raise ValueError("Hardened derivation is not posible on HDPublicKey")
else:
key = self.to_public_key().to_bytes()
signed64 = hmac.new(
self.chain,
key + to_bytes(self.index, length = 4),
hashlib.sha512
).digest()
x, y = self.pubkey.pair
curve = utils.generator_secp256k1
point = int_from_bytes(signed64[:32]) * curve + utils.Point(curve.curve(), x, y, curve.order())
pubkey = PublicKey((point.x(), point.y()), self.network)
chain = signed64[32:]
depth = self.depth + 1
return HDPublicKey(pubkey, chain, depth, index, self.fingerprint, self.network)
def derive(self, index, hardened=False):
# TODO Is index Valid?
if index < HARDENED_START and hardened:
index += HARDENED_START
if hardened:
raise ValueError(
"Hardened derivation is not posible on HDPublicKey")
else:
key = self.to_public_key().to_bytes()
signed64 = hmac.new(self.chain, key + to_bytes(self.index, length=4),
hashlib.sha512).digest()
x, y = self.pubkey.pair
curve = utils.generator_secp256k1
point = int_from_bytes(signed64[:32]) * curve + utils.Point(
curve.curve(), x, y, curve.order())
pubkey = PublicKey((point.x(), point.y()), self.network)
chain = signed64[32:]
depth = self.depth + 1
return HDPublicKey(pubkey, chain, depth, index, self.fingerprint,
self.network)
def derive(self, index, hardened=False):
# TODO Is index Valid?
if index < HARDENED_START and hardened:
index += HARDENED_START
if hardened:
key = '\0' + self.to_private_key().to_bytes(
) # a literal 0 is prepended to private keys
else:
key = self.to_public_key().to_bytes()
signed64 = hmac.new(self.chain, key + to_bytes(self.index, length=4),
hashlib.sha512).digest()
seed = (int_from_bytes(signed64[:32]) + self.to_private_key().seed
) % utils.generator_secp256k1.order()
privkey = PrivateKey(seed, self.network)
chain = signed64[32:]
depth = self.depth + 1
return HDPrivateKey(privkey, chain, depth, index, self.fingerprint,
self.network)
def derive(self, index, hardened = False):
# TODO Is index Valid?
if index < HARDENED_START and hardened:
index += HARDENED_START
if hardened:
key = '\0' + self.to_private_key().to_bytes() # a literal 0 is prepended to private keys
else:
key = self.to_public_key().to_bytes()
signed64 = hmac.new(
self.chain,
key + to_bytes(self.index, length = 4),
hashlib.sha512
).digest()
seed = (int_from_bytes(signed64[:32]) + self.to_private_key().seed) % utils.generator_secp256k1.order()
privkey = PrivateKey(seed, self.network)
chain = signed64[32:]
depth = self.depth + 1
return HDPrivateKey(privkey, chain, depth, index, self.fingerprint, self.network)
