(gBdZdgZddlmZddlmZGddeZdZy)z OpenPGP mode. OpenPgpMode) _copy_bytes)get_random_bytesc"eZdZdZdZdZdZy)razOpenPGP mode. This mode is a variant of CFB, and it is only used in PGP and OpenPGP_ applications. If in doubt, use another mode. An Initialization Vector (*IV*) is required. Unlike CFB, the *encrypted* IV (not the IV itself) is transmitted to the receiver. The IV is a random data block. For legacy reasons, two of its bytes are duplicated to act as a checksum for the correctness of the key, which is now known to be insecure and is ignored. The encrypted IV is therefore 2 bytes longer than the clean IV. .. _OpenPGP: http://tools.ietf.org/html/rfc4880 :undocumented: __init__ c|j|_d|_|j||jfd|jz|jdzd|}t dd|}t ||jk(r|j ||ddz|_n^t ||jdzk(r||_|j|dd}n'td|j|jdzfz|x|_ |_ |j||jf|j|j d|jdzd||_ y)NF)IV segment_sizez4Length of IV must be %d or %d bytes for MODE_OPENPGP) block_size_done_first_blocknewMODE_CFBrlenencrypt _encrypted_IVdecrypt ValueErrorivr _cipher)selffactorykeyr cipher_params IV_ciphers Y/var/www/skyplay_api_hub/venv/lib/python3.12/site-packages/Crypto/Cipher/_mode_openpgp.py__init__zOpenPgpMode.__init__=si",,!& GKK(()#T__4%)__q%8 ) ( ) tR ( r7doo %!*!2!2223>> c.encrypt(a) + c.encrypt(b) is equivalent to: >>> c.encrypt(a+b) This function does not add any padding to the plaintext. :Parameters: plaintext : bytes/bytearray/memoryview The piece of data to encrypt. :Return: the encrypted data, as a byte string. It is as long as *plaintext* with one exception: when encrypting the first message chunk, the encypted IV is prepended to the returned ciphertext. T)rrrr)r plaintextress rrzOpenPgpMode.encryptgs>>ll""9-%%$$s*C%)D " r c8|jj|S)aDecrypt data with the key and the parameters set at initialization. A cipher object is stateful: once you have decrypted a message you cannot decrypt (or encrypt) another message with the same object. The data to decrypt can be broken up in two or more pieces and `decrypt` can be called multiple times. That is, the statement: >>> c.decrypt(a) + c.decrypt(b) is equivalent to: >>> c.decrypt(a+b) This function does not remove any padding from the plaintext. :Parameters: ciphertext : bytes/bytearray/memoryview The piece of data to decrypt. :Return: the decrypted data (byte string). )rr)r ciphertexts rrzOpenPgpMode.decrypts6||##J//r N)__name__ __module__ __qualname____doc__rrrr rrr(s((-T#J0r c 4|jdd}|jdd}d||fk(rt|j}| | td|} |jd}t ||||S#t$r}tdt |zd}~wwxYw)a#Create a new block cipher, configured in OpenPGP mode. :Parameters: factory : module The module. :Keywords: key : bytes/bytearray/memoryview The secret key to use in the symmetric cipher. IV : bytes/bytearray/memoryview The initialization vector to use for encryption or decryption. For encryption, the IV must be as long as the cipher block size. For decryption, it must be 2 bytes longer (it is actually the *encrypted* IV which was prefixed to the ciphertext). r Nr)NNz*You must either use 'iv' or 'IV', not bothrzMissing component: )poprr TypeErrorKeyErrorstrr)rkwargsrr res r_create_openpgp_cipherr2s( D$ B D$ BBx g00 1 ~ >HI I 8jj wR 00 8-A6778sA22 B;BBN) r)__all__Crypto.Util.py3compatr Crypto.Randomrobjectrr2r*r rr7s-> /-*0&0D$1r