diff --git a/CHANGELOG b/CHANGELOG
index ff8c227..289faa6 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,8 @@
+* 0.5.4
+	- Add message signer cli
+	- Add pbkdf2 support
+	- Add -0 flag for omitting newline on output
+	- Revert RLP to 2.0.1, to not break eth-tester in dependents
 * 0.5.3
 	- Upgrade RLP to 3.0.0 (eliminates really annoying cytoolz warning on stdout)
 ---
diff --git a/funga/eth/runnable/keyfile.py b/funga/eth/runnable/keyfile.py
index 738524e..467311b 100644
--- a/funga/eth/runnable/keyfile.py
+++ b/funga/eth/runnable/keyfile.py
@@ -30,6 +30,7 @@ logg = logging.getLogger()
 argparser = argparse.ArgumentParser()
 argparser.add_argument('-d', '--decrypt', dest='d', type=str, help='decrypt file')
 argparser.add_argument('--private-key', dest='private_key', action='store_true', help='output private key instead of address')
+argparser.add_argument('-0', dest='nonl', action='store_true', help='no newline at end of output')
 argparser.add_argument('-z', action='store_true', help='zero-length password')
 argparser.add_argument('-k', type=str, help='load key from file')
 argparser.add_argument('-v', action='store_true', help='be verbose')
@@ -79,10 +80,12 @@ def main():
         else:
             pk_bytes = os.urandom(32)
         pk = coincurve.PrivateKey(secret=pk_bytes)
-        o = to_dict(pk_bytes, passphrase)
+        o = to_dict(pk_bytes, passphrase=passphrase)
         r = json.dumps(o)
 
-    print(r) 
+    if not args.nonl:
+        r += "\n"
+    sys.stdout.write(r) 
 
 
 if __name__ == '__main__':
diff --git a/funga/eth/runnable/msg.py b/funga/eth/runnable/msg.py
new file mode 100644
index 0000000..279a9be
--- /dev/null
+++ b/funga/eth/runnable/msg.py
@@ -0,0 +1,54 @@
+# standard imports
+import os
+import logging
+import sys
+import json
+import argparse
+import getpass
+
+# external impors
+import coincurve
+from hexathon import strip_0x
+
+# local imports
+from funga.error import DecryptError
+from funga.eth.keystore.dict import DictKeystore
+from funga.eth.signer import EIP155Signer
+
+
+logging.basicConfig(level=logging.WARNING)
+logg = logging.getLogger()
+
+argparser = argparse.ArgumentParser()
+argparser.add_argument('-f', type=str, help='Keyfile to use for signing')
+argparser.add_argument('-z', action='store_true', help='zero-length password')
+argparser.add_argument('-v', action='store_true', help='be verbose')
+argparser.add_argument('-0', dest='nonl', action='store_true', help='no newline at end of output')
+argparser.add_argument('msg', type=str, help='Message to sign')
+args = argparser.parse_args()
+
+if args.v:
+    logg.setLevel(logging.DEBUG)
+
+
+def main():
+    passphrase = os.environ.get('WALLET_PASSPHRASE', os.environ.get('PASSPHRASE'))
+    if args.z:
+        passphrase = ''
+    if passphrase == None:
+        passphrase = getpass.getpass('decryption phrase: ')
+   
+    keystore = DictKeystore()
+    address = keystore.import_keystore_file(args.f, password=passphrase)
+
+    signer = EIP155Signer(keystore)
+    sig = signer.sign_ethereum_message(address, args.msg.encode('utf-8').hex(), password=passphrase)
+
+    r = sig.hex()
+    if not args.nonl:
+        r += "\n"
+    sys.stdout.write(r)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/requirements.txt b/requirements.txt
index 9522511..a3088d1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,10 @@
 cryptography==3.2.1
 pysha3==1.0.2
-#rlp==2.0.1
-rlp==3.0.0
+rlp==2.0.1
+#rlp==3.0.0
 json-rpc==1.13.0
 confini~=0.5.1
 coincurve==15.0.0
 hexathon~=0.1.0
 pycryptodome==3.10.1
-funga==0.5.1
+funga==0.5.2
diff --git a/setup.py b/setup.py
index 6ca3ce9..f2f917d 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@ f.close()
 
 setup(
         name="funga-eth",
-        version="0.5.3",
+        version="0.5.6",
         description="Ethereum implementation of the funga keystore and signer",
         author="Louis Holbrook",
         author_email="dev@holbrook.no",
@@ -55,8 +55,9 @@ setup(
             'console_scripts': [
                 'funga-ethd=funga.eth.runnable.signer:main',
                 'eth-keyfile=funga.eth.runnable.keyfile:main',
+                'eth-sign-msg=funga.eth.runnable.msg:main',
                 ],
             },
-        url='https://gitlab.com/chaintool/funga-eth',
+        url='https://git.grassecon.net/chaintool/funga-eth',
         include_package_data=True,
         )