o b @sddlZddlZddlmZddlmZddlmZdZ dde de dej ed d fd d Z Gd dde Z Gddde ZGddde ZGdd d ejdZeZGdddejdZeZGdddejdZeZdS)N) _get_backend)Backend) serializationi generatorkey_sizebackendreturn DHParameterscCst|}|||SN)rZgenerate_dh_parameters)rrrr k/var/www/secure340b-portal/env/lib/python3.10/site-packages/cryptography/hazmat/primitives/asymmetric/dh.pygenerate_parameterss r c @s~eZdZddededejeddfddZdd Zd d Z dd eje dd fddZ e ddZ e ddZ e ddZdS)DHParameterNumbersNpgqrcCsvt|tr t|tstd|durt|tstd|dkr#td|tkr0tdt||_||_||_ dS)Nzp and g must be integerszq must be integer or Nonez!DH generator must be 2 or greaterz#p (modulus) must be at least {}-bit) isinstanceint TypeError ValueError bit_length_MIN_MODULUS_SIZEformat_p_g_q)selfrrrr r r __init__s  zDHParameterNumbers.__init__cCs2t|tstS|j|jko|j|jko|j|jkSr )rrNotImplementedrrrrotherr r r __eq__+s "zDHParameterNumbers.__eq__cC ||k Sr r r r r r __ne__3 zDHParameterNumbers.__ne__rr cCt|}||Sr )rZload_dh_parameter_numbersrrr r r parameters6 zDHParameterNumbers.parameterscC|jSr )rrr r r <zDHParameterNumbers.cCr*r )rr+r r r r,=r-cCr*r )rr+r r r r,>r-r )__name__ __module__ __qualname__rtypingOptionalrr"r$rr(propertyrrrr r r r rs"  rc@feZdZdededdfddZddZd d Z dd ej e dd fd dZ e ddZ e ddZdS)DHPublicNumbersyparameter_numbersrNcC4t|ts tdt|tstd||_||_dS)Nzy must be an integer.z5parameters must be an instance of DHParameterNumbers.)rrrr_y_parameter_numbers)rr6r7r r r rB   zDHPublicNumbers.__init__cC&t|tstS|j|jko|j|jkSr )rr5rr9r:r r r r r"N   zDHPublicNumbers.__eq__cCr#r r r r r r r$Wr%zDHPublicNumbers.__ne__r DHPublicKeycCr&r )rZload_dh_public_numbersr'r r r public_keyZr)zDHPublicNumbers.public_keycCr*r )r9r+r r r r,`r-zDHPublicNumbers.cCr*r )r:r+r r r r,ar-r )r.r/r0rrrr"r$r1r2rr?r3r6r7r r r r r5A   r5c@r4)DHPrivateNumbersxpublic_numbersrNcCr8)Nzx must be an integer.z6public_numbers must be an instance of DHPublicNumbers.)rrrr5_x_public_numbers)rrBrCr r r rer;zDHPrivateNumbers.__init__cCr<r )rrArrDrEr r r r r"qr=zDHPrivateNumbers.__eq__cCr#r r r r r r r$zr%zDHPrivateNumbers.__ne__r DHPrivateKeycCr&r )rZload_dh_private_numbersr'r r r private_key}r)zDHPrivateNumbers.private_keycCr*r )rEr+r r r r,r-zDHPrivateNumbers.cCr*r )rDr+r r r r,r-r )r.r/r0rr5rr"r$r1r2rrGr3rCrBr r r r rAdr@rAc@sLeZdZejdddZejdddddefd d Zejdefd d Z d S)r rrFcCdS)z7 Generates and returns a DHPrivateKey. Nr r+r r r generate_private_keyz!DHParameters.generate_private_keyencodingserialization.Encodingrzserialization.ParameterFormatcCrH)z= Returns the parameters serialized as bytes. Nr rrKrr r r parameter_bytesrJzDHParameters.parameter_bytescCrH)z/ Returns a DHParameterNumbers. Nr r+r r r r7rJzDHParameters.parameter_numbersN)rrF) r.r/r0abcabstractmethodrIbytesrNrr7r r r r r s   ) metaclassc@sdeZdZejdefddZejdefddZ ejde fddZ ejdd d d de fd d Z dS)r>rcCrHz6 The bit length of the prime modulus. Nr r+r r r rrJzDHPublicKey.key_sizecCrH)zJ The DHParameters object associated with this public key. Nr r+r r r r(rJzDHPublicKey.parameterscCrH)z, Returns a DHPublicNumbers. Nr r+r r r rCrJzDHPublicKey.public_numbersrKrLrzserialization.PublicFormatcCrHz6 Returns the key serialized as bytes. Nr rMr r r public_bytesrJzDHPublicKey.public_bytesN)r.r/r0rOabstractpropertyrrrPr r(r5rCrQrUr r r r r>sr>c @seZdZejdefddZejdefddZ ejde fddZ ejdede fd d Z ejdefd d Zejd dddddde fddZdS)rFrcCrHrSr r+r r r rrJzDHPrivateKey.key_sizecCrH)zC The DHPublicKey associated with this private key. Nr r+r r r r?rJzDHPrivateKey.public_keycCrH)zK The DHParameters object associated with this private key. Nr r+r r r r(rJzDHPrivateKey.parameterspeer_public_keycCrH)zn Given peer's DHPublicKey, carry out the key exchange and return shared key as bytes. Nr )rrWr r r exchangerJzDHPrivateKey.exchangecCrH)z- Returns a DHPrivateNumbers. Nr r+r r r private_numbersrJzDHPrivateKey.private_numbersrKrLrzserialization.PrivateFormatencryption_algorithmz(serialization.KeySerializationEncryptioncCrHrTr )rrKrrZr r r private_bytesrJzDHPrivateKey.private_bytesN)r.r/r0rOrVrrrPr>r?r r(rQrXrArYr[r r r r rFs*rFr )rOr1Zcryptography.hazmat.backendsrZ'cryptography.hazmat.backends.interfacesrZcryptography.hazmat.primitivesrrrr2r objectrr5rAABCMetar ZDHParametersWithSerializationr>ZDHPublicKeyWithSerializationrFZDHPrivateKeyWithSerializationr r r r s2    )##,