nPA: use given credentials for CA

The user can now specify an EF.CardSecurity, CA private/public key and
CHR of the trust anchor via the command line.

virtualsmartcard/src/vpicc/vicc.in

@@ -60,9 +60,42 @@ relay.add_argument("-r", "--reader",
         type=int,
         help="number of the reader which contains the smart card to be relayed.")
 
+npa = parser.add_argument_group('options for nPA emulation')
+npa.add_argument("-e", "--ef-cardsecurity",
+        action="store",
+        type=argparse.FileType('r'),
+        help="EF.CardSecurity with the signed CA public key.")
+npa.add_argument("-k", "--ca-key",
+        action="store",
+        type=argparse.FileType('r'),
+        help="CA private key.")
+npa.add_argument("-p", "--ca-pubkey",
+        action="store",
+        type=argparse.FileType('r'),
+        help="CA public key.")
+npa.add_argument("-c", "--ca",
+        action="store",
+        type=str,
+        help="CHR of the CVCA.")
+
 args = parser.parse_args()
 
 from virtualsmartcard.VirtualSmartcard import VirtualICC
+
+ef_cardsecurity_data = None
+ca_key_data = None
+ca_pubkey_data = None
+if (args.ef_cardsecurity):
+    ef_cardsecurity_data = args.ef_cardsecurity.read()
+    args.ef_cardsecurity.close()
+if (args.ca_key):
+    ca_key_data = args.ca_key.read()
+    args.ca_key.close()
+if (args.ca_pubkey):
+    ca_pubkey_data = args.ca_pubkey.read()
+    args.ca_pubkey.close()
 vicc = VirtualICC(args.file, args.type,
-        args.hostname, args.port, readernum=args.reader)
+        args.hostname, args.port, readernum=args.reader,
+        ef_cardsecurity=ef_cardsecurity_data, ca_pubkey=ca_pubkey_data,
+        ca_key=ca_key_data, ca=args.ca)
 vicc.run()