add support for uncompressed keys

Author: doersf

README.md

@@ -38,7 +38,7 @@ For more information, see [Python API Docs](https://block.io/api/simple/python).
 
 ## Windows Users, Please Note:
 
-You can install it like so on Windows: "pip install block-io==1.1.2"  
+You can install it like so on Windows: "pip install block-io==1.1.3"  
 
 Now regarding the vcvarsall.bat error -- that error is due to the fact that pycrypto library is being compiled when you're trying to install the block-io library.  
 
@@ -55,7 +55,7 @@ Once this is done, go to C:\Python3.4\Lib\distutils, and create a file calls "di
     compiler=mingw32  
 
 
-Now exit your Command Prompt or Python IDE, go to Command Prompt again, type "pip install block-io==1.1.2". 
+Now exit your Command Prompt or Python IDE, go to Command Prompt again, type "pip install block-io==1.1.3". 
 
 
 ## Contributing

block_io/__init__.py

@@ -18,9 +18,15 @@ class BlockIo(object):
 
     class Key:
 
-        def __init__(self, privkey, pubkey = None):
+        def __init__(self, privkey, pubkey = None, compressed = True):
             self.private_key = SigningKey.from_string(privkey, SECP256k1, sha256)
-            self.public_key = BlockIo.Helper.compress_pubkey(self.private_key.get_verifying_key().to_string())
+
+            if (compressed):
+                # use the compressed public key
+                self.public_key = BlockIo.Helper.compress_pubkey(self.private_key.get_verifying_key().to_string())
+            else:
+                # use the uncompressed public key
+                self.public_key = unhexlify('04' + hexlify(self.private_key.get_verifying_key().to_string()))
 
         def sign(self, data_to_sign):
             der_sig = self.private_key.sign_digest_deterministic(data_to_sign, sha256, util.sigencode_der_canonize)
@@ -49,6 +55,9 @@ def from_wif(privkey):
                 # Invalid checksum!
                 raise Exception("Invalid Private Key provided. Must be in Wallet Import Format.")
 
+            # is this a compressed WIF or not?
+            is_compressed = len(hexlify(extended_key_bytes)) == 68 and hexlify(extended_key_bytes)[-2:] == "01"
+
             # Drop the network bytes    
             extended_key_bytes = extended_key_bytes[1:]
 
@@ -57,7 +66,7 @@ def from_wif(privkey):
             if (len(private_key) == 33):
                 private_key = extended_key_bytes[:-1]
 
-            return BlockIo.Key(private_key)
+            return BlockIo.Key(private_key, None, is_compressed)
 
     class Helper:
 

setup.py

@@ -1,7 +1,7 @@
 from setuptools import setup
 
 setup(name='block-io',
-      version='1.1.2',
+      version='1.1.3',
       description='The easiest way to integrate Bitcoin, Dogecoin and Litecoin in your applications. Sign up at Block.io for your API key.',
       url='https://github.com/BlockIo/block_io-python',
       author='Atif Nazir',