o -׾g"Y@sddlmZmZmZmZddlZddlZddlZddlm Z ddl m Z m Z m Z mZmZmZmZmZmZmZddlmZddlmZmZddlmZdd lmZejd krZeZ e!Z"nd d Z e Z#e#d krie$dgdZ%ddddZ&ddddZ'ddZ(ddZ)ddZ*ddZ+ddZ, dd Z-Gd!d"d"Z.Gd#d$d$Z/e/dddZ0e.d%d&d'Z1e/e1d(d)d*Z2e.d+d&d,Z3e/e3d-d.d/Z4e.d0d&d1Z5e/e5d2d3d4Z6e.d5d&d6Z7e/e7d7d8d9Z8e.d:d&d;Z9e/e9dZ:dS)?)unicode_literalsdivisionabsolute_importprint_functionN)backend) Certificate DSASignatureECDomainParametersECPointBitString ECPrivateKeyint_from_bytesPrivateKeyAlgorithmPrivateKeyInfoPublicKeyAlgorithm PublicKeyInfo)pretty_message) type_namebyte_cls) rand_bytes)SignatureError)cCs t|gSN)bytes)numrY/var/www/html/backend_erp/backend_erp_env/lib/python3.10/site-packages/oscrypto/_ecdsa.pychr_clss r winlegacyz2Pure-python ECDSA code is only for Windows XP/2003)ec_generate_pairec_compute_public_key_pointec_public_key_info ecdsa_sign ecdsa_verify 0B secp256r1 secp384r1 secp521r1cCs|tgdvrttdt|t|}tttd|} t|}t |dd}|dkr2||j kr2nqt dt dt d|d d td |d d }t|}||djd<t|||fS)a Generates a EC public/private key pair :param curve: A unicode string. Valid values include "secp256r1", "secp384r1" and "secp521r1". :raises: ValueError - when any of the parameters contain an invalid value TypeError - when any of the parameters are of the wrong type :return: A 2-element tuple of (asn1crypto.keys.PublicKeyInfo, asn1crypto.keys.PrivateKeyInfo) r'\ curve must be one of "secp256r1", "secp384r1", "secp521r1", not %s TFsignedrecnamednamevalue algorithm parameters ecPrivkeyVer1)version private_key)r8private_key_algorithmr9r9 public_key)set ValueErrorrrepr CURVE_BYTESSECP256R1_BASE_POINTSECP384R1_BASE_POINTSECP521R1_BASE_POINTrr orderrrr r r copyparsedr!)curvecurve_num_bytescurve_base_pointprivate_key_bytesprivate_key_intprivate_key_infoec_pointrrrrCsF rcCst|tsttdt||j\}}|dkrttd|dkr'ttd|dkrD|tgdvrr@rArBrEnativer from_coordsxy)r9 curve_typedetails base_point public_pointrrrr s8  r cCsB|tgdvrttdt|ttdtd|dd|dS)a Constructs the PublicKeyInfo for an ECPointBitString :param private_key: An asn1crypto.keys.ECPointBitString object :param curve: A unicode string of the curve name - one of secp256r1, secp384r1 or secp521r1 :raises: ValueError - when any of the parameters contain an invalid value :return: An asn1crypto.keys.PublicKeyInfo object r'r,r/r0r1r4)r5r;)r<r=rr>rrr )public_key_pointrFrrrr!sr!cCs t|dr t|jtsttdt||j}|tgdvr%t tdt|t s3ttdt||tgdvrDt tdt |t t |}|jdj}|dj}|dj}t|}tttd|} | j} ||} t| } t| d d | } d | }d | }t||d || |}t|||}t||d || |}t|||}d }d } d}t||krt|||}||7}t||kst|d |d d }|d ks|| krq| |j| }|d krqt|| | ||| | }|d krq t||dS)aN Generates an ECDSA signature in pure Python (thus slow) :param private_key: The PrivateKey to generate the signature with :param data: A byte string of the data the signature is for :param hash_algorithm: A unicode string of "sha1", "sha256", "sha384" or "sha512" :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: A byte string of the signature asn1zy private_key must be an instance of the oscrypto.asymmetric.PrivateKey class, not %s r'zx private_key does not use one of the named curves secp256r1, secp384r1 or secp521r1 < data must be a byte string, not %s sha1sha224sha256sha384sha512z hash_algorithm must be one of "sha1", "sha224", "sha256", "sha384", "sha512", not %s r9Fr-rT)rs)hasattrrOrZrrPrrrFr<r=rr>getattrhashlibrEcontentsrQr?r@rArBrCdigestlenr hmacnewrS inverse_modr dump)r9datahash_algorithm curve_name hash_funcec_private_keyrIrJrGrHnrl hash_lengthhVKrfrgTkrrrr"sx         r"cCst|d}|rt|jttfsttdt||j}|t gdvr)t tdt|t s7ttdt|t|t sEttdt||t gdvrVt tdt ||j}t|tra|j }tttd|}|d \}} |j} t|j|| | } zt|}|d j} |d j} Wn t ytd wd }|| dkO}|| | kO}|| dkO}|| | kO}|rtd tt|}||}t|dd| }t| | }||| }| || }||| |}| |j| krtd dS)a Verifies an ECDSA signature in pure Python (thus slow) :param certificate_or_public_key: A Certificate or PublicKey instance to verify the signature with :param signature: A byte string of the signature to verify :param data: A byte string of the data the signature is for :param hash_algorithm: A unicode string of "md5", "sha1", "sha256", "sha384" or "sha512" :raises: oscrypto.errors.SignatureError - when the signature is determined to be invalid 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 rZz certificate_or_public_key must be an instance of the oscrypto.asymmetric.PublicKey or oscrypto.asymmetric.Certificate classes, not %s r'z certificate_or_public_key does not use one of the named curves secp256r1, secp384r1 or secp521r1 zA signature must be a byte string, not %s r[r\rbr;rfrgzSignature is invalidrrFr-N)rhrOrZrrrPrrrFr<r=rr>r;r@rArB to_coordsrC PrimePointr loadrQrrirjrlr rprS)certificate_or_public_key signaturerrrshas_asn1rtrZrHrSrTrwrYrfrginvalidrurlzwu1u2 hash_pointrrrr#`s|                 r#c Cs|dks||kr ||}||}}d\}}}}|dkr.leftmost_bitrrrr)rCrrrFrSrTr)rrree3 negative_selfirrrr__mul__s,     zPrimePoint.__mul__cCs||S)rrrrrr__rmul__s zPrimePoint.__rmul__cCst|jj}|jj}d|j|j|td|j||}||d|j|}||j||j|}t|j||S)zS :return: A PrimePoint object that is twice this point rr)rFrrrSrprTr)rrrrrrrrrrs (zPrimePoint.doubler) rrrrrrrrrrrrrrrMs  + rl l 9{uDjSg9g(Bl +'1t:_|v!a:@ml H<^W]dZ{cxW\Iql 1(i&^#a;l?lF eY8 w-X"PVd/%PP!-l!"X!#BXtJ9!'|%VA-l4~ f&Dv@h!fE0m9_ qlM/l=*8%(?l?@lK`Opq^cv 3,e< 1U]>{|R*ZlB11e %:f=K`wrH7gHK8hklQ~o]l+fUg+<)Z?8O?q!OlQ%x +Ohbi+}s@l~l*'#.TEbc+Z'@=D 1 "(?7N2Z_+|S/1fl dxRjoyU8T( :ss"nZL8k&"_Ul_!uR/sX0 @qaNQNB&JxS8KJEY K%lls)e`gwl X_[nlv|l#l#?VQ(zO%b95~cte1oR{V;LH w>l-rZE]"Sr&Ga9}*Fl#f=xK)H-apY$3^Q n%k{;/K!u{4-{?$Od8V1l3s: l#Pf?QE$XN!85aZU WL9YLhz f$Du13otc!% pMxjRr`l# dp"z\}[z3"nZ;PK# `7roCQ); __future__rrrrrjrnsysr_asn1rr r r r r rrrr_errorsr_typesrrutilrerrorsr version_infochrrxrangerange_backend SystemError__all__r?CURVE_EXTRA_BITSrr r!r"r#rprrrSECP192R1_CURVESECP192R1_BASE_POINTSECP224R1_CURVESECP224R1_BASE_POINTSECP256R1_CURVEr@SECP384R1_CURVErASECP521R1_CURVErBrrrrs 0     <;%u/#&