Caesar Software 'link' Review

def _shift_char(self, char, shift): """Shift a single character, preserving case.""" if char.isupper(): return chr((ord(char) - ord('A') + shift) % 26 + ord('A')) elif char.islower(): return chr((ord(char) - ord('a') + shift) % 26 + ord('a')) else: return char # non-alphabet unchanged

def brute_force(self, ciphertext, top_n=5): """Try all 25 shifts and return most likely results.""" candidates = [] for shift in range(1, 26): temp_cipher = CaesarCipher(shift) decrypted = temp_cipher.decrypt(ciphertext) # Score by frequency of English letters (simple heuristic) score = sum(1 for ch in decrypted.lower() if ch in 'etaoin') candidates.append((shift, decrypted, score)) candidates.sort(key=lambda x: x[2], reverse=True) return candidates[:top_n] def main(): print("=== Caesar Cipher Software ===") cipher = CaesarCipher() caesar software

""" Caesar Cipher Software - Professional Implementation Features: - Encrypt / Decrypt text with custom shift - Auto-solve (brute force all 25 shifts) - Preserve case and non-alphabet characters - File input/output support """ class CaesarCipher: def (self, shift=3): self.shift = shift % 26 shift): """Shift a single character