U ;g,'@sddlmZmZmZmZddlZddlmZddlm Z m Z m Z m Z ddl mZmZmZmZddlmZdd lmZmZdd lmZd d d gZdZddgZddZddZdd Zde_dd Z z ddl!m"Z"ddZ#dd Z$Wn"ek rddl%m$Z$YnXdS))unicode_literalsdivisionabsolute_importprint_functionN)pretty_message)buffer_from_bytesbytes_from_buffererrnobyte_string_from_buffer) type_namestr_clsbyte_cls int_types)LibraryNotFoundError) CommonCryptoCommonCryptoConst)Securitypbkdf2 pkcs12_kdf rand_bytesutf-8cp1252c Csfz t|tWStk rXtD]2}zt||ddWYStk rPYq Xq YnXt|ddS)Nstrict)errorsreplace)r _encodingUnicodeDecodeError_fallback_encodings)valueencodingr"6/tmp/pip-unpacked-wheel-x1gypflw/oscrypto/_mac/util.py _try_decodes r$cCsHt}zt|}Wntk r0t|YSXt|tr@|St|S)z~ Extracts the last OS error message into a python unicode string :return: A unicode string error message )r osstrerror ValueErrorr isinstancer$) error_num error_stringr"r"r#_extract_error*s r+c Cst|tsttdt|t|ts8ttdt|t|tsTttdt||dkrdtdt|tsttdt||dkrtd|tdd d d d gkrttd t|t j t j t j t j t jd|}t|}tt j|t||t||||| }|dkrttt|S)a PBKDF2 from PKCS#5 :param hash_algorithm: The string name of the hash algorithm to use: "sha1", "sha224", "sha256", "sha384", "sha512" :param password: A byte string of the password to use an input to the KDF :param salt: A cryptographic random byte string :param iterations: The numbers of iterations to use when deriving the key :param key_length: The length of the desired key in bytes :raises: ValueError - when any of the parameters contain an invalid value TypeError - when any of the parameters are of the wrong type OSError - when an error is returned by the OS crypto library :return: The derived key as a byte string z@ password must be a byte string, not %s z< salt must be a byte string, not %s z? iterations must be an integer, not %s rz!iterations must be greater than 0z? key_length must be an integer, not %s z!key_length must be greater than 0sha1sha224sha256sha384sha512zz hash_algorithm must be one of "sha1", "sha224", "sha256", "sha384", "sha512", not %s )r,r-r.r/r0r)r(r TypeErrorrr rr'setreprrZkCCPRFHmacAlgSHA1ZkCCPRFHmacAlgSHA224ZkCCPRFHmacAlgSHA256ZkCCPRFHmacAlgSHA384ZkCCPRFHmacAlgSHA512rrZCCKeyDerivationPBKDFZ kCCPBKDF2lenOSErrorr+r )hash_algorithmpasswordsalt iterations key_lengthalgo output_bufferresultr"r"r#r?sh       FcCsnt|tsttdt||dkr,td|dkrs0   e(  |