added enigma machine algorithm (#932)

Author: shahabmohammadi

Diff for: hashes/enigma_machine.py

@@ -0,0 +1,61 @@
+from __future__ import print_function
+
+alphabets = [chr(i) for i in range(32, 126)]
+gear_one = [i for i in range(len(alphabets))]
+gear_two = [i for i in range(len(alphabets))]
+gear_three = [i for i in range(len(alphabets))]
+reflector = [i for i in reversed(range(len(alphabets)))]
+code = []
+gear_one_pos = gear_two_pos = gear_three_pos = 0
+
+
+def rotator():
+    global gear_one_pos
+    global gear_two_pos
+    global gear_three_pos
+    i = gear_one[0]
+    gear_one.append(i)
+    del gear_one[0]
+    gear_one_pos += 1
+    if gear_one_pos % int(len(alphabets)) == 0:
+        i = gear_two[0]
+        gear_two.append(i)
+        del gear_two[0]
+        gear_two_pos += 1
+        if gear_two_pos % int(len(alphabets)) == 0:
+            i = gear_three[0]
+            gear_three.append(i)
+            del gear_three[0]
+            gear_three_pos += 1
+
+
+def engine(input_character):
+    target = alphabets.index(input_character)
+    target = gear_one[target]
+    target = gear_two[target]
+    target = gear_three[target]
+    target = reflector[target]
+    target = gear_three.index(target)
+    target = gear_two.index(target)
+    target = gear_one.index(target)
+    code.append(alphabets[target])
+    rotator()
+
+
+if __name__ == '__main__':
+    decode = input("Type your message:\n")
+    decode = list(decode)
+    while True:
+        try:
+            token = int(input("Please set token:(must be only digits)\n"))
+            break
+        except Exception as error:
+            print(error)
+    for i in range(token):
+        rotator()
+    for i in decode:
+        engine(i)
+    print("\n" + "".join(code))
+    print(
+        f"\nYour Token is {token} please write it down.\nIf you want to decode "
+        f"this message again you should input same digits as token!")