Hướng dẫn what is aes encryption in python? - Mã hóa aes trong python là gì?

• phím (byte/bytearray/memoryView) - (bytes/bytearray/memoryview) –

  Khóa bí mật để sử dụng trong mật mã đối xứng.

  Nó phải dài 16, 24 hoặc 32 byte (tương ứng đối với AES-128, AES-122 hoặc AES-256).

  Chỉ dành cho MODE_SIV, nó tăng gấp đôi lên 32, 48 hoặc 64 byte.

• Chế độ (một trong các hằng số MODE_* được hỗ trợ) - Chế độ chuỗi để sử dụng để mã hóa hoặc giải mã. Nếu nghi ngờ, sử dụng MODE_EAX. (One of the supported MODE_* constants) – The chaining mode to use for encryption or decryption. If in doubt, use MODE_EAX.

• Chế độ OpenPGP (bytes, bytearray, memoryview) – (Only applicable for MODE_CBC, MODE_CFB,

  >>> from Crypto.Cipher import AES
  >>>
  >>> key = b'Sixteen byte key'
  >>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
  >>> plaintext = cipher.decrypt(ciphertext)
  >>> try:
  >>>     cipher.verify(tag)
  >>>     print("The message is authentic:", plaintext)
  >>> except ValueError:
  >>>     print("Key incorrect or message corrupted")
  

  0, and

  >>> from Crypto.Cipher import AES
  >>>
  >>> key = b'Sixteen byte key'
  >>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
  >>> plaintext = cipher.decrypt(ciphertext)
  >>> try:
  >>>     cipher.verify(tag)
  >>>     print("The message is authentic:", plaintext)
  >>> except ValueError:
  >>>     print("Key incorrect or message corrupted")
  

  1 modes).

  var mode_ccm:

  Bộ đếm với chế độ CBC-MAC (CCM)

  var mode_eax:

  Chế độ EAX

• var mode_gcm: (bytes, bytearray, memoryview) – (Only applicable for

  >>> from Crypto.Cipher import AES
  >>>
  >>> key = b'Sixteen byte key'
  >>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
  >>> plaintext = cipher.decrypt(ciphertext)
  >>> try:
  >>>     cipher.verify(tag)
  >>>     print("The message is authentic:", plaintext)
  >>> except ValueError:
  >>>     print("Key incorrect or message corrupted")
  

  7, MODE_EAX,

  >>> from Crypto.Cipher import AES
  >>>
  >>> key = b'Sixteen byte key'
  >>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
  >>> plaintext = cipher.decrypt(ciphertext)
  >>> try:
  >>>     cipher.verify(tag)
  >>>     print("The message is authentic:", plaintext)
  >>> except ValueError:
  >>>     print("Key incorrect or message corrupted")
  

  9, MODE_SIV, (nonce, ciphertext, tag)1, and (nonce, ciphertext, tag)2).

  Chế độ truy cập Galois (GCM)

  var mode_siv:16 bytes).

  Vector khởi tạo tổng hợp (SIV)[7..13]. Bear in mind that with CCM there is a trade-off between nonce length and maximum message size. Recommendation: 11 bytes.

  var mode_ocb:[1..15] (recommended: 15).

  Sách mã bù (OCB)[0..15] (recommended: 8).

  ________ 3 ________ 4 (khóa, chế độ, *args, ** kwargs) ¶

  Tạo một mật mã AES mới.

• phím (byte/bytearray/memoryView) - (integer) – (Only MODE_CFB).The number of bits the plaintext and ciphertext are segmented in. It must be a multiple of 8. If not specified, it will be assumed to be 8.

• Khóa bí mật để sử dụng trong mật mã đối xứng. : (integer) – (Only MODE_EAX,

  >>> from Crypto.Cipher import AES
  >>>
  >>> key = b'Sixteen byte key'
  >>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
  >>> plaintext = cipher.decrypt(ciphertext)
  >>> try:
  >>>     cipher.verify(tag)
  >>>     print("The message is authentic:", plaintext)
  >>> except ValueError:
  >>>     print("Key incorrect or message corrupted")
  

  9, (nonce, ciphertext, tag)1,

  >>> from Crypto.Cipher import AES
  >>>
  >>> key = b'Sixteen byte key'
  >>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
  >>> plaintext = cipher.decrypt(ciphertext)
  >>> try:
  >>>     cipher.verify(tag)
  >>>     print("The message is authentic:", plaintext)
  >>> except ValueError:
  >>>     print("Key incorrect or message corrupted")
  

  7) Length of the authentication tag, in bytes.

  Nó phải dài 16, 24 hoặc 32 byte (tương ứng đối với AES-128, AES-122 hoặc AES-256).[4..16]. The recommended value (and the default, if not specified) is 16.

• Chỉ dành cho MODE_SIV, nó tăng gấp đôi lên 32, 48 hoặc 64 byte. : (integer) – (Only

  >>> from Crypto.Cipher import AES
  >>>
  >>> key = b'Sixteen byte key'
  >>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
  >>> plaintext = cipher.decrypt(ciphertext)
  >>> try:
  >>>     cipher.verify(tag)
  >>>     print("The message is authentic:", plaintext)
  >>> except ValueError:
  >>>     print("Key incorrect or message corrupted")
  

  7). Length of the message to (de)cipher. If not specified, Crypto.Cipher.AES.9 must be called with the entire message. Similarly, new0 can only be called once.

• Chế độ (một trong các hằng số MODE_* được hỗ trợ) - Chế độ chuỗi để sử dụng để mã hóa hoặc giải mã. Nếu nghi ngờ, sử dụng MODE_EAX. : (integer) – (Only

  >>> from Crypto.Cipher import AES
  >>>
  >>> key = b'Sixteen byte key'
  >>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
  >>> plaintext = cipher.decrypt(ciphertext)
  >>> try:
  >>>     cipher.verify(tag)
  >>>     print("The message is authentic:", plaintext)
  >>> except ValueError:
  >>>     print("Key incorrect or message corrupted")
  

  7). Length of the associated data. If not specified, all associated data is buffered internally, which may represent a problem for very large messages.

• Từ khóa đối số: : (integer or bytes/bytearray/memoryview) – (Only (nonce, ciphertext, tag)2). The initial value for the counter. If not present, the cipher will start counting from 0. The value is incremented by one for each block. The counter number is encoded in big endian mode.

• IV (byte, bytearray, memoryView) - (chỉ áp dụng cho các chế độ MODE_CBC, MODE_CFB,

  >>> from Crypto.Cipher import AES
  >>>
  >>> key = b'Sixteen byte key'
  >>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
  >>> plaintext = cipher.decrypt(ciphertext)
  >>> try:
  >>>     cipher.verify(tag)
  >>>     print("The message is authentic:", plaintext)
  >>> except ValueError:
  >>>     print("Key incorrect or message corrupted")
  

  0 và

  >>> from Crypto.Cipher import AES
  >>>
  >>> key = b'Sixteen byte key'
  >>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
  >>> plaintext = cipher.decrypt(ciphertext)
  >>> try:
  >>>     cipher.verify(tag)
  >>>     print("The message is authentic:", plaintext)
  >>> except ValueError:
  >>>     print("Key incorrect or message corrupted")
  

  1). : (object) – Instance of new3, which allows full customization of the counter block. This parameter is incompatible to both Crypto.Cipher.AES.2 and new5.

• Vectơ khởi tạo để sử dụng để mã hóa hoặc giải mã. : (boolean) – Use Intel AES-NI hardware extensions (default: use if available).

Đối với MODE_CBC, MODE_CFB và

>>> from Crypto.Cipher import AES
>>>
>>> key = b'Sixteen byte key'
>>> cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
>>> plaintext = cipher.decrypt(ciphertext)
>>> try:
>>>     cipher.verify(tag)
>>>     print("The message is authentic:", plaintext)
>>> except ValueError:
>>>     print("Key incorrect or message corrupted")