(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...
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...
32)# 解密decryption_suite=key.decrypt(encryption_suite)```3.哈希加密：使用python标准库中的`hashlib...
第 35 到 38 行调用encryptMessage()或decryptMessage(),这取决于'encrypt'或'decrypt'是否存储在myMode变量中。 # Measure how long the encryption/decryption takes: startTime = time.time() if myMode == 'encrypt': translated = transpositionEncrypt.encryptMessage(myKey, content) elif myMode == 'de...
图 5-1 显示了一个for回路的六个部分。 [外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-UpnLQC2Z-1692873504732)(https://gitcode.net/OpenDocCN/invent-with-python-zh/-/raw/master/docs/cracking/img/578f225b6e3836fb8288381140c9ad83.png)] 图5-1:for循环语句的六个部分 ...
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 ...
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...
Now that we have the function that is responsible for encryption, let's make the opposite, that's decryption:def decrypt_pdf(input_file: str, password: str): """ Decrypts a file using PyPDF4 library. Precondition: A file is already encrypted """ pdf_reader = PdfFileReader(open(input_...
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.') ...
View Code 通过测试,也没问题,因为解密时会把多余的Z删除。(看来我想多了~) 问题4: 好尴尬的BUG 加密时,不论时文abc, 还是abcz,加密后的密文均为BJDU,那惨了,那BJDU解密时,是abc?还是abcz?? Please input EforencryptionorDfordecryption:E