o 5Î hu ã@sXdZdgZddlmZmZmZmZmZmZm Z m Z eddƒZ Gdd„de ƒZ dd„Zd S) z" Electronic Code Book (ECB) mode. ÚEcbModeé)Úload_pycryptodome_raw_libÚ VoidPointerÚcreate_string_bufferÚget_raw_bufferÚ SmartPointerÚc_size_tÚ c_uint8_ptrÚis_writeable_bufferzCrypto.Cipher._raw_ecbak int ECB_start_operation(void *cipher, void **pResult); int ECB_encrypt(void *ecbState, const uint8_t *in, uint8_t *out, size_t data_len); int ECB_decrypt(void *ecbState, const uint8_t *in, uint8_t *out, size_t data_len); int ECB_stop_operation(void *state); c@s,eZdZdZdd„Zd dd„Zd dd„ZdS) raó*Electronic Code Book (ECB)*. This is the simplest encryption mode. Each of the plaintext blocks is directly encrypted into a ciphertext block, independently of any other block. This mode is dangerous because it exposes frequency of symbols in your plaintext. Other modes (e.g. *CBC*) should be used instead. See `NIST SP800-38A`_ , Section 6.1. .. _`NIST SP800-38A` : http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf :undocumented: __init__ cCsV|j|_tƒ|_t | ¡|j ¡¡}|rtd|ƒ‚t|j ¡tj ƒ|_|  ¡dS)z¸Create a new block cipher, configured in ECB mode. :Parameters: block_cipher : C pointer A smart pointer to the low-level block cipher instance. z)Error %d while instantiating the ECB modeN) Ú block_sizerÚ_stateÚ raw_ecb_libÚECB_start_operationÚgetÚ address_ofÚ ValueErrorrÚECB_stop_operationÚrelease)ÚselfÚ block_cipherÚresult©rúk/var/www/html/construction_image-detection-poc/venv/lib/python3.10/site-packages/Crypto/Cipher/_mode_ecb.pyÚ__init__Ds ÿÿ ÿ zEcbMode.__init__NcCs¤|dur tt|ƒƒ}n|}t|ƒstdƒ‚t|ƒt|ƒkr%tdt|ƒƒ‚t |j ¡t |ƒt |ƒt t|ƒƒ¡}|rH|dkrBtdƒ‚td|ƒ‚|durPt |ƒSdS)abEncrypt data with the key set at initialization. The data to encrypt can be broken up in two or more pieces and `encrypt` can be called multiple times. That is, the statement: >>> 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. The length must be multiple of the cipher block length. :Keywords: output : bytearray/memoryview The location where the ciphertext must be written to. If ``None``, the ciphertext is returned. :Return: If ``output`` is ``None``, the ciphertext is returned as ``bytes``. Otherwise, ``None``. Nú4output must be a bytearray or a writeable memoryviewú9output must have the same length as the input (%d bytes)éú2Data must be aligned to block boundary in ECB modez%Error %d while encrypting in ECB mode) rÚlenr Ú TypeErrorrr Ú ECB_encryptr rr rr)rÚ plaintextÚoutputÚ ciphertextrrrrÚencrypt^ó*ÿ  ý zEcbMode.encryptcCs¤|dur tt|ƒƒ}n|}t|ƒstdƒ‚t|ƒt|ƒkr%tdt|ƒƒ‚t |j ¡t |ƒt |ƒt t|ƒƒ¡}|rH|dkrBtdƒ‚td|ƒ‚|durPt |ƒSdS)aeDecrypt data with the key set at initialization. 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. The length must be multiple of the cipher block length. :Keywords: output : bytearray/memoryview The location where the plaintext must be written to. If ``None``, the plaintext is returned. :Return: If ``output`` is ``None``, the plaintext is returned as ``bytes``. Otherwise, ``None``. Nrrrrz%Error %d while decrypting in ECB mode) rrr rrr Ú ECB_decryptr rr rr)rr#r"r!rrrrÚdecrypt•r%zEcbMode.decrypt)N)Ú__name__Ú __module__Ú __qualname__Ú__doc__rr$r'rrrrr3s  7cKs.| |¡}|j|_|rtdt|ƒƒ‚t|ƒS)aMInstantiate a cipher object that performs ECB encryption/decryption. :Parameters: factory : module The underlying block cipher, a module from ``Crypto.Cipher``. All keywords are passed to the underlying block cipher. See the relevant documentation for details (at least ``key`` will need to be presentzUnknown parameters for ECB: %s)Ú_create_base_cipherr rÚstrr)ÚfactoryÚkwargsÚ cipher_staterrrÚ_create_ecb_cipherÍs r1N)r+Ú__all__ÚCrypto.Util._raw_apirrrrrrr r r Úobjectrr1rrrrÚs(