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added additional input key check

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This commit is contained in:
Alexey Karyabkin 2018-06-14 15:08:16 +04:00
parent 70a35822f1
commit cd99ecb261
1 changed files with 29 additions and 27 deletions
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56
pybtc/hdwallet.py
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@ -136,38 +136,40 @@ def create_parent_pubkey_hdwallet(master_key):
# Создание дочернего приватного ключа
def create_child_privkey(key, child_idx):
expanded_privkey = create_expanded_key(key, child_idx)
if expanded_pubkey:
child_chain_code = expanded_pubkey[32:]
child_privkey = add_private_keys(expanded_pubkey[:32], key['key'])
if validate_private_key(child_privkey):
finger_print = hash160(priv2pub(key['key']))[:4]
return dict(version=key['version'],
key=child_pubkey,
depth=key['depth'] + 1,
child=child_idx,
finger_print=finger_print,
chain_code=child_chain_code,
is_private=False)
if key['is_private']:
expanded_privkey = create_expanded_key(key, child_idx)
if expanded_privkey:
child_chain_code = expanded_privkey[32:]
child_privkey = add_private_keys(expanded_privkey[:32], key['key'])
if validate_private_key(child_privkey):
finger_print = hash160(priv2pub(key['key']))[:4]
return dict(version=key['version'],
key=child_privkey,
depth=key['depth'] + 1,
child=child_idx,
finger_print=finger_print,
chain_code=child_chain_code,
is_private=True)
return None
# создание дочернего публичного ключа
def create_child_pubkey(key, child_idx):
expanded_pubkey = create_expanded_key(key, child_idx)
if expanded_pubkey:
child_chain_code = expanded_pubkey[32:]
ext_value = priv2pub(expanded_pubkey[:32])
child_pubkey = add_public_keys(ext_value, key['key'])
if is_valid_pub(child_pubkey):
finger_print = hash160(key['key'])[:4]
return dict(version=key['version'],
key=child_pubkey,
depth=key['depth'] + 1,
child=child_idx,
finger_print=finger_print,
chain_code=child_chain_code,
is_private=False)
if not key['is_private']:
expanded_pubkey = create_expanded_key(key, child_idx)
if expanded_pubkey:
child_chain_code = expanded_pubkey[32:]
ext_value = priv2pub(expanded_pubkey[:32])
child_pubkey = add_public_keys(ext_value, key['key'])
if is_valid_pub(child_pubkey):
finger_print = hash160(key['key'])[:4]
return dict(version=key['version'],
key=child_pubkey,
depth=key['depth'] + 1,
child=child_idx,
finger_print=finger_print,
chain_code=child_chain_code,
is_private=False)
return None