Bitmessage/PyBitmessage-2024-12-19
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Solved encode-decode, pack-unpack, new address creation issues

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This commit is contained in:
jai.s 2019-10-22 13:07:54 +05:30
parent b18ed5e80f
commit f4d14c11e9
No known key found for this signature in database
GPG Key ID: 360CFA25EFC67D12
6 changed files with 21 additions and 34 deletions
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4
src/class_addressGenerator.py
View File

@ -157,13 +157,13 @@ class addressGenerator(StoppableThread):
# An excellent way for us to store our keys
# is in Wallet Import Format. Let us convert now.
# https://en.bitcoin.it/wiki/Wallet_import_format
privSigningKey = '\x80'.encode('utf-8') + potentialPrivSigningKey
privSigningKey = '\x80'.encode('utf-8')[1:] + potentialPrivSigningKey
checksum = hashlib.sha256(hashlib.sha256(
privSigningKey).digest()).digest()[0:4]
privSigningKeyWIF = arithmetic.changebase(
privSigningKey + checksum, 256, 58)
privEncryptionKey = '\x80'.encode('utf-8') + potentialPrivEncryptionKey
privEncryptionKey = '\x80'.encode('utf-8')[1:] + potentialPrivEncryptionKey
checksum = hashlib.sha256(hashlib.sha256(
privEncryptionKey).digest()).digest()[0:4]
privEncryptionKeyWIF = arithmetic.changebase(

4
src/highlevelcrypto.py
View File

@ -15,8 +15,8 @@ def makeCryptor(privkey):
"""Return a private pyelliptic.ECC() instance"""
private_key = a.changebase(privkey, 16, 256, minlen=32)
public_key = pointMult(private_key)
privkey_bin = '\x02\xca\x00\x20'.encode('utf-8') + private_key
pubkey_bin = '\x02\xca\x00\x20'.encode('utf-8') + public_key[1:-32] + '\x00\x20'.encode('utf-8') + public_key[-32:]
privkey_bin = '\x02\xca\x00\x20'.encode('raw_unicode_escape') + private_key
pubkey_bin = '\x02\xca\x00\x20'.encode('raw_unicode_escape') + public_key[1:-32] + '\x00\x20'.encode('utf-8') + public_key[-32:]
cryptor = pyelliptic.ECC(curve='secp256k1', privkey=privkey_bin, pubkey=pubkey_bin)
return cryptor

20
src/pyelliptic/arithmetic.py
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@ -1,4 +1,4 @@
# pylint: disable=missing-docstring,too-many-function-args
0# pylint: disable=missing-docstring,too-many-function-args
import hashlib
import re
@ -26,33 +26,27 @@ def get_code_string(base):
elif base == 10:
return '0123456789'
elif base == 16:
return "0123456789abcdef"
return ("0123456789abcdef").encode()
elif base == 58:
return "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
elif base == 256:
'''raw_unicode_escape is used because in the python3 after range(161) its genreate the'
the speical character so avoiding that function we have used the raw_unicode method '''
return ''.join([chr(x) for x in range(256)]).encode('raw_unicode_escape')
return bytes(range(0, 256))
else:
raise ValueError("Invalid base!")
def encode(val, base, minlen=0):
code_string = get_code_string(base)
result = ''
# result = str.encode(result)
count = 0
result = str.encode('') if type(code_string) == bytes else ''
while val > 0:
count += 1
print(f'code_string[int(val) % base:int(val) % base + 1] -{code_string[int(val) % base:int(val) % base + 1]}')
print(f'result-{result}')
result = code_string[int(val) % base:int(val) % base + 1] + result
val = int(val / base)
result = code_string[val % base:val % base + 1] + result
val = val // base
if len(result) < minlen:
result = code_string[0] * (minlen - len(result)) + result
return result
def decode(string, base):
code_string = get_code_string(base)
result = 0
@ -60,7 +54,7 @@ def decode(string, base):
string = string.lower()
while string:
result *= base
result += code_string.find(string[0])
result += code_string.find(string[0:1])
string = string[1:]
return result

9
src/pyelliptic/ecc.py
View File

@ -64,7 +64,6 @@ class ECC(object):
self.curve = OpenSSL.get_curve(curve)
else:
self.curve = curve
if pubkey_x is not None and pubkey_y is not None:
self._set_keys(pubkey_x, pubkey_y, raw_privkey)
elif pubkey is not None:
@ -114,7 +113,7 @@ class ECC(object):
pack('!H', len(self.pubkey_x)),
self.pubkey_x,
pack('!H', len(self.pubkey_y)),
self.pubkey_y,
self.pubkey_y,
))
def get_privkey(self):
@ -137,19 +136,18 @@ class ECC(object):
i += 2
pubkey_x = pubkey[i:i + tmplen]
i += tmplen
i += int(tmplen / 3)
tmplen = unpack('!H', pubkey[i:i + 2])[0]
i += 2
pubkey_y = pubkey[i:i + tmplen]
i += tmplen
return curve, pubkey_x, pubkey_y, int(i)
return curve, pubkey_x, pubkey_y, i
@staticmethod
def _decode_privkey(privkey):
i = 0
curve = unpack('!H', privkey[i:i + 2])[0]
i += 2
tmplen = pack('!s', privkey[i:i + 1])[0]
tmplen = unpack('!H', privkey[i:i + 2])[0]
i += 2
privkey = privkey[i:i + tmplen]
i += tmplen
@ -297,7 +295,6 @@ class ECC(object):
if (OpenSSL.EC_KEY_set_private_key(key, priv_key)) == 0:
raise Exception(
"[OpenSSL] EC_KEY_set_private_key FAIL ...")
group = OpenSSL.EC_KEY_get0_group(key)
pub_key = OpenSSL.EC_POINT_new(group)

6
src/pyelliptic/openssl.py
View File

@ -674,13 +674,12 @@ def loadOpenSSL():
elif 'win32' in sys.platform or 'win64' in sys.platform:
libdir.append(path.join(sys._MEIPASS, 'libeay32.dll'))
else:
libdir.extend([
path.join(sys._MEIPASS, 'libcrypto.so'),
path.join(sys._MEIPASS, 'libssl.so'),
path.join(sys._MEIPASS, 'libcrypto.so.1.1.0'),
path.join(sys._MEIPASS, 'libssl.so.1.1.0'),
path.join(sys._MEIPASS, 'libcrypto.so.1.0.2'),
path.join(sys._MEIPASS, 'libcrypto.so.1.0.2'),
path.join(sys._MEIPASS, 'libssl.so.1.0.2'),
path.join(sys._MEIPASS, 'libcrypto.so.1.0.1'),
path.join(sys._MEIPASS, 'libssl.so.1.0.1'),
@ -703,6 +702,7 @@ def loadOpenSSL():
libdir.append('libssl.so')
libdir.append('libcrypto.so.1.0.0')
libdir.append('libssl.so.1.0.0')
libdir.append('libcrypto.so.1.0.2')
if 'linux' in sys.platform or 'darwin' in sys.platform or 'bsd' in sys.platform:
try:
libdir.append(find_library('ssl'))
@ -710,7 +710,7 @@ def loadOpenSSL():
pass
elif 'win32' in sys.platform or 'win64' in sys.platform:
libdir.append(find_library('libeay32'))
for library in libdir:
for library in libdir:
try:
OpenSSL = _OpenSSL(library)
return

12
src/shared.py
View File

@ -89,27 +89,23 @@ def isAddressInMyAddressBookSubscriptionsListOrWhitelist(address):
return True
return False
def decodeWalletImportFormat(WIFstring):
fullString = arithmetic.changebase(WIFstring, 58, 256)
privkey = fullString[:-4]
if fullString[-4:] != \
hashlib.sha256(hashlib.sha256(privkey).digest()).digest()[:4]:
if fullString[-4:] != hashlib.sha256(hashlib.sha256(privkey).digest()).digest()[:4]:
logger.critical(
'Major problem! When trying to decode one of your'
' private keys, the checksum failed. Here are the first'
' 6 characters of the PRIVATE key: %s',
str(WIFstring)[:6]
' 6 characters of the PRIVATE key: {}'.format(str(WIFstring)[:6])
)
os._exit(0)
# return ""
elif privkey[0] == '\x80': # checksum passed
if privkey[0:1] == '\x80'.encode()[1:]: # checksum passed
return privkey[1:]
logger.critical(
'Major problem! When trying to decode one of your private keys,'
' the checksum passed but the key doesn\'t begin with hex 80.'
' Here is the PRIVATE key: %s', WIFstring
' Here is the PRIVATE key: {}'.format(WIFstring)
)
os._exit(0)