add a1z26 algorithm

dori-dev · dori-dev · commit 2ff8eb17ccaf · 2022-08-03T09:19:47.000+04:30
diff --git a/ciphers/a1z26.py b/ciphers/a1z26.py
@@ -0,0 +1,32 @@
+"""
+a1z26_encode('dori', 15) => [115, 126, 129, 120]
+a1z26_decode([115, 126, 129, 120], 15) => 'dori'
+complexity: O(n)
+"""
+
+from typing import List
+
+
+def a1z26_encode(string: str, key: int) -> List[int]:
+    result = []
+    for letter in string:
+        result.append(ord(letter) + abs(key))
+    return result
+
+
+def a1z26_decode(encode_array: List[int], key: int) -> str:
+    result = ''
+    for element in encode_array:
+        try:
+            result += chr(element - abs(key))
+        except ValueError:
+            result += chr(element)
+    return result
+
+
+if __name__ == '__main__':
+    string_encode = a1z26_encode('mohammad dori', 8)
+    print(string_encode)
+    print(a1z26_decode(string_encode, 8))
+    print(a1z26_encode('dori', 15) == [115, 126, 129, 120])
+    print(a1z26_decode([115, 126, 129, 120], 15) == 'dori')
