introduce a tool to create keys for the client and the server

aman/tools/KeyPairCreator.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python
+
+import argparse
+import os
+from typing import Tuple
+import zmq.auth
+
+# @brief Creates a new keypair for ZMQ encryption
+# @param[in] directory The location where to store the keys
+# @return The public and private key tuple
+def KeyPairCreator(directory: str, server: bool) -> Tuple[str, str]:
+    if not server:
+        print('Creating a new pair for a client...')
+        target = 'client'
+    else:
+        print('Creating a new pair for the server...')
+        target = 'server'
+
+    public, private = zmq.auth.create_certificates(directory, target)
+    return (public, private)
+
+def str2bool(value):
+    if isinstance(value, bool):
+        return value
+    elif value.lower() in ('yes', 'true', 't', 'y', '1'):
+        return True
+    elif value.lower() in ('no', 'false', 'f', 'n', '0'):
+        return False
+    else:
+        raise argparse.ArgumentTypeError('Boolean value expected')
+
+if __name__ == '__main__':
+    # create the commandline parser
+    parser = argparse.ArgumentParser(description='Create a new key-value pair')
+    parser.add_argument('directory', help='Directory where to store the key pair')
+    parser.add_argument('--server', default=False, action='store_true', help="Creates server key pair")
+    args = parser.parse_args()
+
+    # create the directory if it does not exist
+    if not os.path.exists(args.directory):
+        os.makedirs(args.directory)
+
+    # create the keys
+    KeyPairCreator(args.directory, args.server)