def test_bip32_descend():
master = btc.bip32_master_key('\x07'*32)
end_key = btc.bip32_descend(master, [2, 3, 10000])
assert end_key=="6856ef965940a1a7b1311dc041050ac0013e326c7ff4e2c677a7694b4f0405c901"
end_key = btc.bip32_descend(master, 2, 5, 4, 5)
assert end_key=="d2d816b6485103c0d7ff95482788f0e8e73fa11817079e006d47979d8196c4b101"
def derive_keypairs(hd_key, keys=3):
keypairs = []
for i in range(keys):
privkey = encode_privkey(bip32_descend(hd_key, [i]), 'hex')
addr = decode_addr(ethereum.keys.privtoaddr(privkey)).decode('utf-8')
keypairs.append((privkey, addr))
return keypairs
def seed2pvkey(seed, path, bip44=True):
if bip44:
master_xprv = bitcoin.bip32_master_key(seed, b'\x04\x88\xAD\xE4')
path_list = path2list(path)
return bitcoin.bip32_descend(master_xprv, path_list)
else:
return seed + "00"
def address(args):
c = 1 if args.change else 0
if (args.index < 0):
unspents = bitcoin.BlockchainInfo.unspent_xpub(args.xpub)
index = check_outputs_max_index(unspents, c)
else:
index = args.index
address = bitcoin.pubtoaddr(bitcoin.bip32_descend(args.xpub, c, index))
print(address)
def address(args):
c = 1 if args.change else 0
if args.index < 0:
unspents = bitcoin.BlockchainInfo.unspent_xpub(args.xpub)
index = check_outputs_max_index(unspents, c)
else:
index=args.index
address = bitcoin.pubtoaddr(bitcoin.bip32_descend(args.xpub, c, index))
print(address)
def generate_new_address(self, index):
"""
Generate new bitcoin address from a hd public master key based on a particlar index
Address can be generated sequentially like in the case of electrum
:param index: Index to use to generate address
:return: Generated address
"""
address = btc.pubkey_to_address(
btc.bip32_descend(self.public_key, [0, index]))
return address
def address(args):
c = 1 if args.change else 0
if (args.index < 0):
unspents = bitcoin.BlockchainInfo.unspent_xpub(args.xpub)
index = check_outputs_max_index(unspents, c)
else:
index = args.index
if (coin_arg_parse(args.coin) != coin_arg_parse('BTC')):
print("Error: not known how to build address for coin \"" + args.coin +
"\"")
address = bitcoin.pubtoaddr(bitcoin.bip32_descend(args.xpub, c, index))
print(address)
def send(args):
if (len(args.outputs) % 2 != 0):
raise Exception(
"When sending, there must be an even number of arguments for the outputs (address,price)"
)
unspents = bitcoin.BlockchainInfo.unspent_xpub(args.xpub)
def btctosatoshi(vs):
return int(float(vs) * 100000000.0)
fee = btctosatoshi(args.fee)
if (fee < 0):
fee = int(
0.0001 * 100000000
) #todo do something to estimated fee...make it negative or something though... DONT
outaddrval = [(args.outputs[2 * i], btctosatoshi(args.outputs[2 * i + 1]))
for i in range(len(args.outputs) // 2)]
outtotalval = sum([o[1] for o in outaddrval])
changeindex = check_outputs_max_index(unspents, 1)
changeaddress = bitcoin.pubtoaddr(
bitcoin.bip32_descend(args.xpub, 1, changeindex))
unspents = bitcoin.select(unspents, outtotalval + fee)
#unspents cull using outtotalval
unspenttotalval = sum([u['value'] for u in unspents])
changeamount = unspenttotalval - (outtotalval + abs(fee))
if (changeamount < 0):
raise Exception(
"There is unlikely to be enough unspent outputs to cover the transaction and fees"
)
out = {}
outs = outaddrval
if (changeamount > 0):
outs += [[changeaddress, changeamount]]
#print(unspents)
#print(outs)
otx = [{'address': o[0], 'value': o[1]} for o in outs]
tx = bitcoin.mktx(unspents, otx)
#compute all the underlying addresses and pubkeys into a string hash
#estimate the fee
#build the transaction
out['tx'] = tx
u['xpub']['value'] = u['value']
out['keys'] = dict([(u['output'], u['xpub']) for u in unspents])
#print(bitcoin.deserialize(tx))
json.dump(out, sys.stdout)
def sign(args):
master_key = get_master_key()
input_transaction = json.load(args.input_file)
privs = input_transaction['keys']
tx = input_transaction['tx']
for k, p in privs.items():
pstr = bitcoin.bip32_path_from_string(p['path'])
xpubk = p['m']
a = 0
priv_key = bitcoin.hd_lookup(master_key, account=a)
while (bitcoin.bip32_privtopub(priv_key) != xpubk):
priv_key = bitcoin.hd_lookup(master_key, account=a)
a += 1
privs[k] = bitcoin.bip32_descend(priv_key, pstr[0], pstr[1])
print(bitcoin.signall(str(tx), privs))
def sign(args):
master_key = get_master_key()
input_transaction = json.load(args.input_file)
privs = input_transaction['keys']
tx = input_transaction['tx']
for k, p in privs.items():
pstr = bitcoin.bip32_path_from_string(p['path'])
xpubk = p['m']
a = 0
priv_key = bitcoin.hd_lookup(master_key, account = a)
while bitcoin.bip32_privtopub(priv_key) != xpubk:
priv_key = bitcoin.hd_lookup(master_key, account = a)
a += 1
privs[k] = bitcoin.bip32_descend(priv_key, pstr[0], pstr[1])
print(bitcoin.signall(str(tx), privs))
def send(args):
if len(args.outputs) % 2 != 0:
raise Exception("When sending, there must be an even number of arguments " +
"for the outputs (address, price)")
unspents = bitcoin.BlockchainInfo.unspent_xpub(args.xpub)
def btctosatoshi(vs):
return int(float(vs)*100000000.0)
fee = btctosatoshi(args.fee)
if fee < 0:
fee = int(0.0001*100000000) #todo do something to estimated fee...make it negative or something though... DONT
outaddrval = [(args.outputs[2*i],btctosatoshi(args.outputs[2*i+1])) for i in range(len(args.outputs)//2)]
outtotalval = sum([o[1] for o in outaddrval])
changeindex = check_outputs_max_index(unspents,1)
changeaddress = bitcoin.pubtoaddr(bitcoin.bip32_descend(args.xpub, 1, changeindex))
unspents = bitcoin.select(unspents, outtotalval+fee)
#unspents cull using outtotalval
unspenttotalval = sum([u['value'] for u in unspents])
changeamount = unspenttotalval - (outtotalval + abs(fee))
if changeamount < 0:
raise Exception("There is unlikely to be enough unspent outputs to cover the transaction and fees")
out = {}
outs = outaddrval
if changeamount > 0:
outs += [[changeaddress, changeamount]]
#print(unspents)
#print(outs)
otx = [{'address':o[0], 'value':o[1]} for o in outs]
tx = bitcoin.mktx(unspents, otx)
#compute all the underlying addresses and pubkeys into a string hash
#estimate the fee
#build the transaction
out['tx'] = tx
out['keys'] = dict([(u['output'], u['xpub']) for u in unspents])
#print(bitcoin.deserialize(tx))
json.dump(out, sys.stdout)
import bitcoin
from bitcoin.deterministic import bip32_harden as h
mnemonic = 'saddle observe obtain scare burger nerve electric alone minute east walnut motor omit coyote time'
seed = bitcoin.mnemonic_to_seed(mnemonic)
mpriv = bitcoin.bip32_master_key(seed)
accountroot = mpriv
accountroot = bitcoin.bip32_ckd(accountroot, h(44))
accountroot = bitcoin.bip32_ckd(accountroot, h(0))
accountroot = bitcoin.bip32_ckd(accountroot, h(0))
for i in range(19):
dkey = bitcoin.bip32_descend(accountroot, 0, i)
print(bitcoin.privtoaddr(dkey))
import bitcoin from bitcoin.deterministic import bip32_harden as h mnemonic='saddle observe obtain scare burger nerve electric alone minute east walnut motor omit coyote time' seed=bitcoin.mnemonic_to_seed(mnemonic) mpriv=bitcoin.bip32_master_key(seed) accountroot=mpriv accountroot=bitcoin.bip32_ckd(accountroot,h(44)) accountroot=bitcoin.bip32_ckd(accountroot,h(0)) accountroot=bitcoin.bip32_ckd(accountroot,h(0)) for i in range(19): dkey=bitcoin.bip32_descend(accountroot,0,i) print(bitcoin.privtoaddr(dkey))
