j[ddlmZmZmZmZddlZddlmZddlm Z m Z m Z m Z m Z mZddlmZmZmZmZddlmZdd lmZmZgd Zd Zd Zd ZdZdZdZdZ dZ!dZ"dZ#dZ$dZ%dZ&dZ'dZ(dZ)dS))unicode_literalsdivisionabsolute_importprint_functionN)pretty_message)newnullis_nullbuffer_from_bytesbytes_from_bufferderef) libcryptolibcrypto_legacy_supportLibcryptoConsthandle_openssl_error) rand_bytes) type_namebyte_cls) aes_cbc_no_padding_decryptaes_cbc_no_padding_encryptaes_cbc_pkcs7_decryptaes_cbc_pkcs7_encryptdes_cbc_pkcs5_decryptdes_cbc_pkcs5_encryptrc2_cbc_pkcs5_decryptrc2_cbc_pkcs5_encrypt rc4_decrypt rc4_encrypttripledes_cbc_pkcs5_decrypttripledes_cbc_pkcs5_encryptcht|}|std}n=t|dkr*tt dt|t|dzdkr*tt dt||t ||||dfS)a Encrypts plaintext using AES in CBC mode with a 128, 192 or 256 bit key and no padding. This means the ciphertext must be an exact multiple of 16 bytes long. :param key: The encryption key - a byte string either 16, 24 or 32 bytes long :param data: The plaintext - a byte string :param iv: The initialization vector - either a byte string 16-bytes long or None to generate an IV :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 OpenSSL :return: A tuple of two byte strings (iv, ciphertext) : iv must be 16 bytes long - is %s rzJ data must be a multiple of 16 bytes long - is %s F_calculate_aes_cipherrlen ValueErrorr_encryptkeydataivciphers j/var/www/finuniver-perm.ru/html/portfolio/venv/lib/python3.11/site-packages/oscrypto/_openssl/symmetric.pyrrs2#3 ' 'F  ^^ RB  GG       4yy2~  II       dB66 77ct|}t|dkr*ttdt|t ||||dS)aM Decrypts AES ciphertext in CBC mode using a 128, 192 or 256 bit key and no padding. :param key: The encryption key - a byte string either 16, 24 or 32 bytes long :param data: The ciphertext - a byte string :param iv: The initialization vector - a byte string 16-bytes long :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 OpenSSL :return: A byte string of the plaintext r$r%Fr'r(r)r_decryptr+s r0rrMsf.#3 ' 'F 2ww"}}  GG       FCr5 1 11r1ct|}|std}n=t|dkr*tt dt||t ||||dfS)a Encrypts plaintext using AES in CBC mode with a 128, 192 or 256 bit key and PKCS#7 padding. :param key: The encryption key - a byte string either 16, 24 or 32 bytes long :param data: The plaintext - a byte string :param iv: The initialization vector - either a byte string 16-bytes long or None to generate an IV :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 OpenSSL :return: A tuple of two byte strings (iv, ciphertext) r$r%Tr&r+s r0rrqs0#3 ' 'F  ^^ RB  GG       dB55 66r1ct|}t|dkr*ttdt|t ||||dS)a9 Decrypts AES ciphertext in CBC mode using a 128, 192 or 256 bit key :param key: The encryption key - a byte string either 16, 24 or 32 bytes long :param data: The ciphertext - a byte string :param iv: The initialization vector - a byte string 16-bytes long :raises: ValueError - when any of the parameters contain an invalid value TypeError - when any of the parameters are of the wrong type OSError - when an error is returned by OpenSSL :return: A byte string of the plaintext r$r%Tr3r+s r0rrsf,#3 ' 'F 2ww"}}  GG       FCr4 0 00r1ct|dvr*ttdt|t|dkrd}n+t|dkrd}nt|dkrd}|S) a Determines if the key is a valid AES 128, 192 or 256 key :param key: A byte string of the key to use :raises: ValueError - when an invalid key is provided :return: A unicode string of the AES variation - "aes128", "aes192" or "aes256" )r$ zo key must be either 16, 24 or 32 bytes (128, 192 or 256 bits) long - is %s r$aes128r8aes192r9aes256)r(r)r)r,r/s r0r'r's 3xx|##  HH       3xx2~~ SR SR Mr1ctstdt|dkst|dkr*tt dt|t d||ddS)a Encrypts plaintext using RC4 with a 40-128 bit key :param key: The encryption key - a byte string 5-16 bytes long :param data: The plaintext - a byte string :raises: ValueError - when any of the parameters contain an invalid value TypeError - when any of the parameters are of the wrong type OSError - when an error is returned by OpenSSL :return: A byte string of the ciphertext -OpenSSL has been compiled without RC4 supportr$Q key must be 5 to 16 bytes (40 to 128 bits) long - is %s rc4N)rEnvironmentErrorr(r)rr*r,r-s r0r r & $PNOOO 3xx!||s3xx"}}  HH       E3dD 1 11r1ctstdt|dkst|dkr*tt dt|t d||ddS)a Decrypts RC4 ciphertext using a 40-128 bit key :param key: The encryption key - a byte string 5-16 bytes long :param data: The ciphertext - a byte string :raises: ValueError - when any of the parameters contain an invalid value TypeError - when any of the parameters are of the wrong type OSError - when an error is returned by OpenSSL :return: A byte string of the plaintext r>r?r$r@rANrrBr(r)rr4rCs r0rrrDr1ctstdt|dkst|dkr*tt dt||st d}n=t|dkr*tt dt||t d|||dfS) ah Encrypts plaintext using RC2 in CBC mode with a 40-128 bit key and PKCS#5 padding. :param key: The encryption key - a byte string 8 bytes long :param data: The plaintext - a byte string :param iv: The initialization vector - a byte string 8-bytes long or None to generate an IV :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 OpenSSL :return: A tuple of two byte strings (iv, ciphertext) -OpenSSL has been compiled without RC2 supportr?r$r@9 iv must be 8 bytes long - is %s rc2TrrBr(r)rrr*r,r-r.s r0rrs0 $PNOOO 3xx!||s3xx"}}  HH        ]] RA  GG       T2t44 55r1cntstdt|dkst|dkr*tt dt|t|dkr*tt dt|t d|||dS) a5 Decrypts RC2 ciphertext ib CBC mode using a 40-128 bit key and PKCS#5 padding. :param key: The encryption key - a byte string 8 bytes long :param data: The ciphertext - a byte string :param iv: The initialization vector - a byte string 8 bytes long :raises: ValueError - when any of the parameters contain an invalid value TypeError - when any of the parameters are of the wrong type OSError - when an error is returned by OpenSSL :return: A byte string of the plaintext rHr?r$r@rIrJrKTrFrMs r0rrNs. $PNOOO 3xx!||s3xx"}}  HH       2ww!||  GG       E3b$ / //r1ct|dkr=t|dkr*ttdt||std}n=t|dkr*ttdt|d}t|dkr||ddz}d}|t ||||d fS) a Encrypts plaintext using 3DES in CBC mode using either the 2 or 3 key variant (16 or 24 byte long key) and PKCS#5 padding. :param key: The encryption key - a byte string 16 or 24 bytes long (2 or 3 key mode) :param data: The plaintext - a byte string :param iv: The initialization vector - a byte string 8-bytes long or None to generate an IV :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 OpenSSL :return: A tuple of two byte strings (iv, ciphertext) r$r8zT key must be 16 bytes (2 key) or 24 bytes (3 key) long - %s rIz6 iv must be 8 bytes long - %s tripledes_3keyrtripledes_2keyT)r(r)rrr*r+s r0r"r"{s0 3xx2~~#c((b..  HH        ]] RA  GG      F 3xx2~~C!Hn! dB55 66r1ct|dkr=t|dkr*ttdt|t|dkr*ttdt|d}t|dkr||ddz}d}t||||d S) au Decrypts 3DES ciphertext in CBC mode using either the 2 or 3 key variant (16 or 24 byte long key) and PKCS#5 padding. :param key: The encryption key - a byte string 16 or 24 bytes long (2 or 3 key mode) :param data: The ciphertext - a byte string :param iv: The initialization vector - a byte string 8-bytes long :raises: ValueError - when any of the parameters contain an invalid value TypeError - when any of the parameters are of the wrong type OSError - when an error is returned by OpenSSL :return: A byte string of the plaintext r$r8zW key must be 16 bytes (2 key) or 24 bytes (3 key) long - is %s rIrJrPrrQT)r(r)rr4r+s r0r!r!s. 3xx2~~#c((b..  HH       2ww!||  GG      F 3xx2~~C!Hn! FCr4 0 00r1cptstdt|dkr*tt dt||st d}n=t|dkr*tt dt||t d|||dfS)a Encrypts plaintext using DES in CBC mode with a 56 bit key and PKCS#5 padding. :param key: The encryption key - a byte string 8 bytes long (includes error correction bits) :param data: The plaintext - a byte string :param iv: The initialization vector - a byte string 8-bytes long or None to generate an IV :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 OpenSSL :return: A tuple of two byte strings (iv, ciphertext) -OpenSSL has been compiled without DES supportrIT key must be 8 bytes (56 bits + 8 parity bits) long - is %s rJdesTrLrMs r0rrs0 $PNOOO 3xx1}}  HH        ]] RA  GG       T2t44 55r1cHtstdt|dkr*tt dt|t|dkr*tt dt|t d|||dS)aN Decrypts DES ciphertext in CBC mode using a 56 bit key and PKCS#5 padding. :param key: The encryption key - a byte string 8 bytes long (includes error correction bits) :param data: The ciphertext - a byte string :param iv: The initialization vector - a byte string 8-bytes long :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 OpenSSL :return: A byte string of the plaintext rTrIrUrJrVTrFrMs r0rrs, $PNOOO 3xx1}}  HH       2ww!||  GG       E3b$ / //r1c Ft|ts*ttdt |t|ts*ttdt ||dkr?t|ts*ttdt ||dkr>|s<|t gdv}|r|r%t |dzdkrtdd } tj }t|rtdt||\}}|t}|t d dgvrtj||ttt} t| tj|t |} t| |d krLtj|t"jt |d zt} t| t}tj||t||} t| |1tj|t)|} t| t+|} t-td } tj|| | |t |} t| t1| t3| } tj|| | } t| | t1| t3| z } | |rtj|SS#|rtj|wwxYw) a Encrypts plaintext :param cipher: A unicode string of "aes128", "aes192", "aes256", "des", "tripledes_2key", "tripledes_3key", "rc2", "rc4" :param key: The encryption key - a byte string 5-32 bytes long :param data: The plaintext - a byte string :param iv: The initialization vector - a byte string - unused for RC4 :param padding: Boolean, if padding should be used - unused for RC4 :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 OpenSSL :return: A byte string of the ciphertext ; key must be a byte string, not %s < data must be a byte string, not %s rA: iv must be a byte string, not %s )r:r;r<r$rpadding must be specifiedNrKrIint *) isinstancer TypeErrorrrsetr(r)rEVP_CIPHER_CTX_newr r_setup_evp_encrypt_decryptr EVP_EncryptInit_exEVP_CIPHER_CTX_set_key_lengthEVP_CIPHER_CTX_ctrlrEVP_CTRL_SET_RC2_KEY_BITSEVP_CIPHER_CTX_set_paddingintr r EVP_EncryptUpdater rEVP_EncryptFinal_exEVP_CIPHER_CTX_free) r/r,r-r.paddingis_aesevp_cipher_ctx evp_cipher buffer_sizeresbuffer output_lengthoutputs r0r*r*:s: c8 $ $   cNN       dH % %   dOO      z"h77  bMM      w3===>>> :& :c$ii"n%:%:899 9N1:"577 > " " $  # # #":tvvsTVWWS!!!  6~s7||TTC  % % %";//Iw// ).&-QUWZ[_W`W`aaS!!!"65+?+?@@+NFMRRS!!!#FE-,@,@AAA  :  ). 9 9 9 9 :> :  ). 9 9 9 9 :s I$NN c t|ts*ttdt |t|ts*ttdt ||dkr?t|ts*ttdt ||t gdvr|st dd} tj}t|rtdt||\}}|t}|t d dgvrtj ||ttt}t|tj|t|}t||d krLtj|t"jt|d zt}t|t}tj ||t||}t||1tj|t)|}t|t+|} t-td } tj|| | |t|}t|t1| t3| } tj|| | }t|| t1| t3| z } | |rtj|SS#|rtj|wwxYw) a Decrypts AES/RC4/RC2/3DES/DES ciphertext :param cipher: A unicode string of "aes128", "aes192", "aes256", "des", "tripledes_2key", "tripledes_3key", "rc2", "rc4" :param key: The encryption key - a byte string 5-32 bytes long :param data: The ciphertext - a byte string :param iv: The initialization vector - a byte string - unused for RC4 :param padding: Boolean, if padding should be used - unused for RC4 :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 OpenSSL :return: A byte string of the plaintext rYrZrAr[)rAr:r;r<r\NrrKrIr])r^rr_rrr`r)rrar rrbr EVP_DecryptInit_exrdr(rerrfrgrhr r EVP_DecryptUpdater rEVP_DecryptFinal_exrk) r/r,r-r.rlrnrorprqrrrsrts r0r4r4s_: c8 $ $   cNN       dH % %   dOO      z"h77  bMM      S>>>?????4555N1:"577 > " " $  # # #":tvvsTVWWS!!!  6~s7||TTC  % % %";//Iw// ).&-QUWZ[_W`W`aaS!!!"65+?+?@@+NFMRRS!!!#FE-,@,@AAA  :  ). 9 9 9 9 :> :  ). 9 9 9 9 :s +I$M''Nc  tjtjtjtjtjtjtjtjd|}|dkrt|}nDdddddddd|}|ttj t||z z}||fS)a Creates an EVP_CIPHER pointer object and determines the buffer size necessary for the parameter specified. :param evp_cipher_ctx: An EVP_CIPHER_CTX pointer :param cipher: A unicode string of "aes128", "aes192", "aes256", "des", "tripledes_2key", "tripledes_3key", "rc2", "rc4" :param key: The key byte string :param data: The plaintext or ciphertext as a byte string :param padding: If padding is to be used :return: A 2-element tuple with the first element being an EVP_CIPHER pointer and the second being an integer that is the required buffer size )r:r;r<rKrArVrQrPrAr$rI)r:r;r<rKrVrQrP) rEVP_aes_128_cbcEVP_aes_192_cbcEVP_aes_256_cbc EVP_rc2_cbcEVP_rc4 EVP_des_cbcEVP_des_ede_cbcEVP_des_ede3_cbcr(rhmathceil)r/r-rorp block_sizes r0rbrbs4 +++$ $#3#4      J$ii     !3tyTZ1G'H'H#I#II  $$r1)* __future__rrrrr_errorsr_ffir r r r r r _libcryptorrrrutilr_typesrr__all__rrrrr'r rrrr"r!rrr*r4rbr1r0rsRRRRRRRRRRRR $$$$$$RRRRRRRRRRRRRRRRaaaaaaaaaaaa((((((((    -8-8-8`!2!2!2H$7$7$7N 1 1 1FB222B222B-6-6-6`*0*0*0Z070707f-1-1-1`-6-6-6`)0)0)0Xo:o:o:dk:k:k:\3%3%3%3%3%r1