hash me baby one more time 👶

luke_09/hashmebaby.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+
+from hashlib import md5
+import json, os
+
+def readFile(file='./input-hashchain.json'):
+  path = os.path.join(os.path.dirname(__file__), file)
+  with open(path, 'r') as f:
+    return json.loads(f.read())
+
+def hash(string):
+  m = md5()
+  m.update(string.encode('utf-8'))
+  return m.hexdigest()
+
+def secret(input, prev_hash, solution):
+  for el in input:
+    char = el['ch']
+    value = hash(prev_hash + char)
+    if el['hash'] == value:
+      solution.append(char)
+      secret(input, value, solution)
+
+  return ''.join(solution)
+
+def main():
+  return secret(readFile(), hash('julekalender'), [])
+
+if __name__ == '__main__':
+  print(main())