made find_key_from_vigenere_cipher

Author: nikos258

ciphers/break_vigenere.py

@@ -0,0 +1,20 @@
+LETTER_FREQUENCIES_DICT = {
+    'A': 8.12, 'B': 1.49, 'C': 2.71, 'D': 4.32, 'E': 12.02, 'F': 2.3, 'G': 2.03,
+    'H': 5.92, 'I': 7.31, 'J': 0.1, 'K': 0.69, 'L': 3.92, 'M': 2.61,
+    'N': 6.95, 'O': 7.68, 'P': 1.82, 'Q': 0.11, 'R': 6.02, 'S': 6.28,
+    'T': 9.10, 'U': 2.88, 'V': 1.11, 'W': 2.09, 'X': 0.17, 'Y': 2.11, 'Z': 0.07
+}
+
+LETTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+
+
+def find_key_from_vigenere_cipher(ciphertext: str) -> str:
+    clean_ciphertext = list()
+    for symbol in ciphertext:
+        if symbol in LETTERS:
+            clean_ciphertext.append(symbol.upper())
+
+    clean_ciphertext = "".join(clean_ciphertext)
+
+    key = ""  # todo replace with function
+    return key