(1)加密(Encryption) 将明文变换为密文的过程。把可懂的语言变换成不可懂的语言。 (2)明文(Plaintext) 加密前的原始信息。 (3)解密(Decryption) 加密的逆过程,即由密文恢复出原明文的过程。把不可懂的语言变换成可懂的语言。 (4)密文(Ciphertext) 加密后的信息。 古典加密算法主要分为: 单表替代密码:Caesa...
# Caesar Cipher # https://www.nostarch.com/crackingcodes/ (BSD Licensed) import pyperclip # The string to be encrypted/decrypted: message = 'This is my secret message.' # The encryption/decryption key: key = 13 # Whether the program encrypts or decrypts: mode = 'encrypt' # Set to e...
We will use symmetric encryption, which means the same key we used to encrypt data is also usable for decryption. There are a lot of encryption algorithms out there. The library we gonna use is built on top of the AES algorithm.There are many encryption uses in the real world. In fact...
def save_to_notepad(text, key, filename): # Save encrypted text and key to a file with open(filename, 'w') as file: file.write(f"Key: {key}\nEncrypted text: {text}") print(f"Text and key saved to {filename}") def encrypt_and_save(): # Take user input, encrypt, and save...
generate_keys() # 明文数据 plaintext = b"This is a test message for post-quantum encryption." # 使用后量子加密算法加密数据 ciphertext = encrypt(public_key, plaintext) # 解密数据 decrypted_text = decrypt(private_key, ciphertext) # 验证解密后数据是否正确 assert plaintext == decrypted_text ...
4 of the key: M Z Q Possible letters for letter 5 of the key: O B Z Possible letters for letter 6 of the key: V I K Attempting with key: ASIMOV Possible encryption hack with key ASIMOV: ALAN MATHISON TURING WAS A BRITISH MATHEMATICIAN, LOGICIAN, CRYPTANALYST, AND COMPUTER SCIENTIST....
32)# 解密decryption_suite=key.decrypt(encryption_suite)```3.哈希加密：使用python标准库中的`hashlib...
# Measure how long the encryption/decryption takes: startTime = time.time() if myMode == 'encrypt': translated = transpositionEncrypt.encryptMessage(myKey, content) elif myMode == 'decrypt': translated = transpositionDecrypt.decryptMessage(myKey, content) ...
ifhackedMessage !=None:# The plaintext is displayed on the screen. For the convenience of# the user, we copy the text of the code to the clipboard:print('Copying hacked message to clipboard:')print(hackedMessage) pyperclip.copy(hackedMessage)else:print('Failed to hack encryption.') ...
()fileObj.close()print('%sing...' % (myMode.title()))# Measure how long the encryption/decryption takes:startTime = time.time()if myMode == 'encrypt':translated = transpositionEncrypt.encryptMessage(myKey, content)elif myMode == 'decrypt':translated = transpositionDecrypt.decryptMessage(...