def decrypt(self, text): """Decrypt text using current shift.""" return ''.join(self._shift_char(c, -self.shift) for c in text)
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
def encrypt(self, text): """Encrypt text using current shift.""" return ''.join(self._shift_char(c, self.shift) for c in text) def decrypt(self, text): """Decrypt text using current shift
""" 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 score)) candidates.sort(key=lambda x: x[2]