fügt choose_known_letters hinzu. Vor rewrite match_ciphertext

src/mono/break_mono.py

@@ -62,6 +62,9 @@ class Breaker():
 
     @staticmethod
     def match_ciphertext(text: str, word_pos: tuple, char: tuple):
+        """
+        asdf
+        """
         word, wposl = word_pos
         wpos = wposl[0]
         wlen = len(word)
@@ -76,6 +79,19 @@ class Breaker():
 
         return snip_count.most_common(1)[0][0]
 
+    @staticmethod
+    def choose_known_letters(key_alphabet):
+        letters = list(key_alphabet.keys())
+        if len(key_alphabet) < 3:
+            yield letters
+        else:
+            for i in letters:
+                for j in letters:
+                    for k in letters:
+                        if k == j or k == i or j == i: continue
+                        yield [i, j, k]
+        return None
+
     def __init__(self, ciphertext, word_file):
         self.ciphertext = ciphertext
         self.alph = self.derive_alphabet_freq(self.get_frequency(ciphertext))
@@ -84,23 +100,28 @@ class Breaker():
 
     def get_key(self):
 
-
+        key_alphabet = OrderedDict()
 
         # most frequent char in English and corresponding most common char in text
-        #most_freq = self.alph.popitem(last=False)
-        most_freq = next(iter(self.alph))
-        word_pos = Breaker.get_word_containing(
-            self.word_file,
-            #most_freq[0]
-            most_freq
-        )
-        most_common = Breaker.match_ciphertext(
-            self.ciphertext,
-            word_pos,
-            most_freq
-        )
-
-        print("most_freq", most_freq, "word_pos:", word_pos, "most_common:", most_common)
+        most_freq = self.alph[Breaker.EN_LETTER_FREQ]
+
+        key_alphabet[Breaker.EN_LETTER_FREQ[0]] = most_freq
+
+        while len(key_alphabet) < 26:
+
+            word_pos = Breaker.get_word_containing(
+                self.word_file,
+                next(Breaker.choose_known_letters(key_alphabet))
+            )
+
+            pass
+
+            most_common = Breaker.match_ciphertext(
+                self.ciphertext,
+                word_pos,
+                most_freq
+            )
 
+        pass
 
     ## end Breaker