Add private key input to keyfile crate, handle empty bytes in in serialize

crypto_dev_signer/eth/transaction.py

@@ -2,11 +2,12 @@
 import logging
 import binascii
 
-# third-party imports
+# external imports
 from rlp import encode as rlp_encode
-
-# local imports
-from crypto_dev_signer.common import strip_hex_prefix, add_hex_prefix
+from hexathon import (
+        strip_0x,
+        add_0x,
+        )
 
 logg = logging.getLogger(__name__)
 
@@ -23,9 +24,12 @@ class Transaction:
 class EIP155Transaction:
 
     def __init__(self, tx, nonce, chainId=1):
-       
-        to = binascii.unhexlify(strip_hex_prefix(tx['to']))
-        data = binascii.unhexlify(strip_hex_prefix(tx['data']))
+        to = None
+        data = None
+        if tx['to'] != None:
+            to = binascii.unhexlify(strip_0x(tx['to'], allow_empty=True))
+        if tx['data'] != None:
+            data = binascii.unhexlify(strip_0x(tx['data'], allow_empty=True))
 
         gas_price = None
         start_gas = None
@@ -75,7 +79,7 @@ class EIP155Transaction:
         self.v = chainId
         self.r = b''
         self.s = b''
-        self.sender = strip_hex_prefix(tx['from'])
+        self.sender = strip_0x(tx['from'])
 
 
     def __canonical_order(self):
@@ -93,6 +97,7 @@ class EIP155Transaction:
 
         return s
 
+
     def bytes_serialize(self):
         s = self.__canonical_order()
         b = b''
@@ -108,15 +113,15 @@ class EIP155Transaction:
 
     def serialize(self):
         tx = {
-            'nonce': add_hex_prefix(self.nonce.hex()),
-            'gasPrice': add_hex_prefix(self.gas_price.hex()),
-            'gas': add_hex_prefix(self.start_gas.hex()),
-            'to': add_hex_prefix(self.to.hex()),
-            'value': add_hex_prefix(self.value.hex()),
-            'data': add_hex_prefix(self.data.hex()),
-            'v': add_hex_prefix(self.v.hex()),
-            'r': add_hex_prefix(self.r.hex()),
-            's': add_hex_prefix(self.s.hex()),
+            'nonce': add_0x(self.nonce.hex(), allow_empty=True),
+            'gasPrice': add_0x(self.gas_price.hex()),
+            'gas': add_0x(self.start_gas.hex()),
+            'to': add_0x(self.to.hex()),
+            'value': add_0x(self.value.hex(), allow_empty=True),
+            'data': add_0x(self.data.hex()),
+            'v': add_0x(self.v.hex(), allow_empty=True),
+            'r': add_0x(self.r.hex(), allow_empty=True),
+            's': add_0x(self.s.hex(), allow_empty=True),
             }
         if tx['data'] == '':
             tx['data'] = '0x'

crypto_dev_signer/keystore/interface.py

@@ -44,7 +44,7 @@ class Keystore:
         return self.import_raw_key(private_key, password)
 
     def import_keystore_file(self, keystore_file, password=''):
-        private_key = keyfile.from_file(keystore_file)
+        private_key = keyfile.from_file(keystore_file, password)
         #return self.import_keystore_data(keystore_content, password)
-        return self.import_raw_key(private_key, password)
+        return self.import_raw_key(private_key)
         #return kes

crypto_dev_signer/keystore/keyfile.py

@@ -13,7 +13,6 @@ import sha3
 # local imports
 from crypto_dev_signer.encoding import private_key_to_address
 
-logging.basicConfig(level=logging.DEBUG)
 logg = logging.getLogger()
 
 algo_keywords = [

crypto_dev_signer/runnable/keyfile.py

@@ -8,6 +8,7 @@ import getpass
 
 # external impors
 import coincurve
+from hexathon import strip_0x
 
 # local imports
 from crypto_dev_signer.keystore.keyfile import (
@@ -21,6 +22,7 @@ logg = logging.getLogger()
 
 argparser = argparse.ArgumentParser()
 argparser.add_argument('-d', type=str, help='decrypt file')
+argparser.add_argument('-k', type=str, help='load key from file')
 argparser.add_argument('-v', action='store_true', help='be verbose')
 args = argparser.parse_args()
 
@@ -31,7 +33,15 @@ mode = 'create'
 if args.d:
     mode = 'decrypt'
 
+pk_hex = os.environ.get('PRIVATE_KEY')
+if args.k != None:
+    f = open(args.k, 'r')
+    pk_hex = f.read(66)
+    f.close()
+
 def main():
+    global pk_hex
+
     passphrase = os.environ.get('PASSPHRASE')
     r = None
     if mode == 'decrypt':
@@ -45,7 +55,12 @@ def main():
     elif mode == 'create':
         if passphrase == None:
             passphrase = getpass.getpass('encryption phrase: ')
-        pk_bytes = os.urandom(32)
+        pk_bytes = None
+        if pk_hex != None:
+            pk_hex = strip_0x(pk_hex)
+            pk_bytes = bytes.fromhex(pk_hex)
+        else:
+            pk_bytes = os.urandom(32)
         pk = coincurve.PrivateKey(secret=pk_bytes)
         o = to_dict(pk, passphrase)
         r = json.dumps(o)