Updated scripts and added new

init.py

@@ -0,0 +1,47 @@
+import shutil
+from argparse import ArgumentParser
+from pathlib import Path
+from random import randbytes
+
+from rc4 import rc4
+
+
+def generate_key(key_length: int) -> bytes:
+    """
+    Generates a random key with a length of key_length bytes
+    """
+    return randbytes(key_length)
+
+
+if __name__ == "__main__":
+    parser = ArgumentParser()
+    parser.add_argument("group", type=Path, help="Group root directory")
+    parser.add_argument("file", type=Path, help="File to decrypt for this group")
+    key_opts = parser.add_mutually_exclusive_group(required=True)
+    key_opts.add_argument(
+        "--key-file",
+        "-k",
+        dest="key_file",
+        type=Path,
+        help="Key source file for this group",
+    )
+    key_opts.add_argument(
+        "--key-length",
+        "-l",
+        dest="key_length",
+        type=int,
+        help="Key length for this group",
+    )
+    args = parser.parse_args()
+
+    # Create required files in group directory
+    shutil.copy(args.file, args.group / "data_decrypted")
+    if args.key_file is not None:
+        try:
+            shutil.copy(args.key_file, args.group / "key")
+        except shutil.SameFileError:
+            pass
+    else:
+        with open(args.group / "key", "wb") as key_file:
+            key_file.write(generate_key(args.key_length))
+    rc4(args.group / "data_decrypted", args.group / "data_encrypted", args.group / "key")