def test_decodeEncode(self):
# get 10 random base58 chars
text = self.randomB58String(10)
print("\nRandom Text: %s" % text)
# decode base58
decoded_text = b58decode(text)
print("\nDecoded Text: %s\n" % decoded_text)
# verify
self.assertEqual(b58encode(decoded_text), text)
def test_encodeDecode(self):
# get 32 random bytes
text = self.randomBytesString(32)
print("\nRandom Bytes: %s" % text.hex())
# encode base58
encoded_text = b58encode(text)
print("\nEncoded Text: %s\n" % encoded_text)
# verify
self.assertEqual(b58decode(encoded_text), text)
def test_generate_privkey(self):
# generate random private key
randomKey = generate_privkey()
# check length
self.assertEqual(len(randomKey), 51)
# check leading char '8'
self.assertEqual(randomKey[0], '8')
# decode and verify checksum
randomKey_bin = bytes.fromhex(b58decode(randomKey).hex())
randomKey_bin_check = bitcoin.bin_dbl_sha256(randomKey_bin[0:-4])[0:4]
self.assertEqual(randomKey_bin[-4:], randomKey_bin_check)
def test_pubkey_to_address(self):
# generate random private key and convert to public
randomPubKey = bitcoin.privkey_to_pubkey(generate_privkey())
# compute address
randomPivxAddr = pubkey_to_address(randomPubKey)
# check leading char 'D'
self.assertEqual(randomPivxAddr[0], 'D')
# decode and verify checksum
randomPivxAddr_bin = bytes.fromhex(b58decode(randomPivxAddr).hex())
randomPivxAddr_bin_check = bitcoin.bin_dbl_sha256(randomPivxAddr_bin[0:-4])[0:4]
self.assertEqual(randomPivxAddr_bin[-4:], randomPivxAddr_bin_check)
def checkPivxAddr(address):
try:
# check leading char 'D'
if address[0] != 'D':
return False
# decode and verify checksum
addr_bin = bytes.fromhex(b58decode(address).hex())
addr_bin_check = bin_dbl_sha256(addr_bin[0:-4])[0:4]
if addr_bin[-4:] != addr_bin_check:
return False
return True
except Exception:
return False
def checkPivxAddr(address, isTestnet=False):
try:
# check leading char 'D' or (for testnet) 'x' or 'y'
if isTestnet and address[0] not in P2PKH_PREFIXES_TNET + P2SH_PREFIXES_TNET:
return False
if not isTestnet and address[0] not in P2PKH_PREFIXES + P2SH_PREFIXES:
return False
# decode and verify checksum
addr_bin = bytes.fromhex(b58decode(address).hex())
addr_bin_check = bin_dbl_sha256(addr_bin[0:-4])[0:4]
if addr_bin[-4:] != addr_bin_check:
return False
return True
except Exception:
return False
def wif_to_privkey(string):
wif_compressed = 52 == len(string)
pvkeyencoded = b58decode(string).hex()
wifversion = pvkeyencoded[:2]
checksum = pvkeyencoded[-8:]
vs = bytes.fromhex(pvkeyencoded[:-8])
check = double_sha256(vs)[0:4]
if (wifversion == WIF_PREFIX.to_bytes(1, byteorder='big').hex() and checksum == check.hex()) \
or (wifversion == TESTNET_WIF_PREFIX.to_bytes(1, byteorder='big').hex() and checksum == check.hex()):
if wif_compressed:
privkey = pvkeyencoded[2:-10]
else:
privkey = pvkeyencoded[2:-8]
return privkey
else:
return None
