Modify scripts

.gitignore

@@ -1,3 +1,5 @@
+.venv/
+__pycache__/
 .bambulab_cache.sqlite
 *.pyc
-.DS_Store
+.DS_Store

scripts/bin_to_keys.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+import argparse
+
+from parse import generate_keys, TOTAL_BYTES
+
+def generate_key_dicts(uid):
+    keys=generate_keys(uid)
+
+    return {'A':keys[0:16],'B':keys[16:]}
+
+if __name__ == "__main__":
+
+    parser = argparse.ArgumentParser(description="Generate keys from a binary tag dump using the UID")
+    parser.add_argument('file', help='Binary tag dump to generate keys from')
+    parser.add_argument('-o', '--output', action='store_true', help='Save keys to hf-mf-<TAG UID>-key.bin')
+    args = parser.parse_args()
+
+    with open(args.file, 'rb') as fp:
+        uid = fp.read(4)
+        dump_bytes = fp.read()
+
+    if len(uid) + len(dump_bytes) != TOTAL_BYTES:
+        raise ValueError(f'Dump file {args.file} does not contain {TOTAL_BYTES} bytes!')
+
+    keys = generate_key_dicts(uid)
+    if args.output:
+        with open(f'hf-mf-{uid.hex().upper()}-key.bin', 'wb') as fp:
+            fp.write(b''.join(keys['A']))
+            fp.write(b''.join(keys['B']))
+    else:
+        print('\n'.join([x.hex().upper() for x in keys['A']]))
+        print('\n'.join([x.hex().upper() for x in keys['B']]))