Python: add hash_to_password.py

python-programming/hash_to_password.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+
+# hash_to_password.py
+#
+# Author: Intel A80486DX2-66
+# License: Creative Commons Zero 1.0 Universal or Unlicense
+# SPDX-License-Identifier: CC0-1.0 OR Unlicense
+
+from hashlib import sha3_512
+
+divide_chunks = lambda x, n: [x[i:i + n] for i in range(0, len(x), n)]
+
+hash_file = lambda file_path: sha3_512(open(file_path, "rb").read()).hexdigest()
+
+hash_to_password = lambda hash_string, start_from, end_before: ''.join(
+    [chr((int(''.join(byte), 16) % (end_before - start_from)) + start_from)
+     for byte in divide_chunks(hash_string, 2)]
+)
+
+if __name__ == "__main__":
+    from os.path import basename
+    from sys import argv
+
+    if len(argv) < 2:
+        print(f"Usage: {basename(__file__)} <file to hash as password>")
+        raise SystemExit
+
+    ASCII_RANGE = {
+        "start_from": 0x21,
+        "end_before": 0x7F
+    }
+
+    print(
+        hash_to_password(
+            hash_file(argv[1]),
+            ASCII_RANGE["start_from"],
+            ASCII_RANGE["end_before"]
+        )
+    )