diff --git a/crypto_dev_signer/encoding.py b/crypto_dev_signer/encoding.py
index 58ab353..4166f03 100644
--- a/crypto_dev_signer/encoding.py
+++ b/crypto_dev_signer/encoding.py
@@ -12,10 +12,7 @@ from hexathon import (
 logg = logging.getLogger(__name__)
 
 
-def private_key_to_address(pk, result_format='hex'):
-    pubk = coincurve.PublicKey.from_secret(pk.secret)
-    logg.debug('secret {} '.format(pk.secret.hex()))
-    pubk_bytes = pubk.format(compressed=False)
+def public_key_bytes_to_address(pubk_bytes, result_format='hex'):
     h = sha3.keccak_256()
     logg.debug('public key bytes {}'.format(pubk_bytes.hex()))
     h.update(pubk_bytes[1:])
@@ -27,6 +24,17 @@ def private_key_to_address(pk, result_format='hex'):
     raise ValueError('invalid result format "{}"'.format(result_format))
 
 
+def public_key_to_address(pubk, result_format='hex'):
+    pubk_bytes = pubk.format(compressed=False)
+    return public_key_bytes_to_address(pubk_bytes, result_format='hex')
+
+
+def private_key_to_address(pk, result_format='hex'):
+    pubk = coincurve.PublicKey.from_secret(pk.secret)
+    logg.debug('secret {} '.format(pk.secret.hex()))
+    return public_key_to_address(pubk, result_format)
+
+
 def is_address(address_hex):
     try:
         address_hex = strip_0x(address_hex)    
diff --git a/crypto_dev_signer/keystore/postgres.py b/crypto_dev_signer/keystore/reference.py
similarity index 100%
rename from crypto_dev_signer/keystore/postgres.py
rename to crypto_dev_signer/keystore/reference.py
diff --git a/crypto_dev_signer/runnable/signer.py b/crypto_dev_signer/runnable/signer.py
index 5bb0d29..d62cfd2 100755
--- a/crypto_dev_signer/runnable/signer.py
+++ b/crypto_dev_signer/runnable/signer.py
@@ -16,7 +16,7 @@ from jsonrpc.exceptions import *
 # local imports
 from crypto_dev_signer.eth.signer import ReferenceSigner
 from crypto_dev_signer.eth.transaction import EIP155Transaction
-from crypto_dev_signer.keystore import ReferenceKeystore
+from crypto_dev_signer.keystore.reference import ReferenceKeystore
 from crypto_dev_signer.error import UnknownAccountError
 
 logging.basicConfig(level=logging.WARNING)
diff --git a/requirements.txt b/requirements.txt
index fe01b7f..6a7153f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,4 +8,4 @@ confini~=0.3.6a3
 sqlalchemy==1.3.20
 coincurve==15.0.0
 pycrypto==2.6.1
-hexathon==0.0.1a4
+hexathon~=0.0.1a5
diff --git a/setup.py b/setup.py
index 7e4a0b8..fec41da 100644
--- a/setup.py
+++ b/setup.py
@@ -24,18 +24,18 @@ f.close()
 
 setup(
         name="crypto-dev-signer",
-        version="0.4.14a4",
+        version="0.4.14a8",
         description="A signer and keystore daemon and library for cryptocurrency software development",
         author="Louis Holbrook",
         author_email="dev@holbrook.no",
         packages=[
             'crypto_dev_signer.eth.signer',
-            'crypto_dev_signer.eth.web3ext',
-            'crypto_dev_signer.eth.helper',
+            #'crypto_dev_signer.eth.web3ext',
+            #'crypto_dev_signer.eth.helper',
             'crypto_dev_signer.eth',
             'crypto_dev_signer.keystore',
             'crypto_dev_signer.runnable',
-            'crypto_dev_signer.helper',
+            #'crypto_dev_signer.helper',
             'crypto_dev_signer',
             ],
         install_requires=requirements,