관리-도구
편집 파일: dh.cpython-39.pyc
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�len)r rL �ctxr Zkeylen�buf�keyZpadr r r �exchange� s6 �� � z_DHPrivateKey.exchangec C s |s| j �� }td|��d S )NzError computing shared key.)r Z_consume_errors_with_textr1 )r �okZerrors_with_textr r r rQ � s �z _DHPrivateKey._exchange_assertc C s� t | j| j�}| jj�d�}| jj�| j|| jjj� | j�|d | jjjk� | jj� |d �}| j�|| jjjk� | jj� ||| jjj�}| j�|dk� | j� |�}t | j||�S r ) r r r r r r rG r r r Z DH_set0_keyZ_dh_cdata_to_evp_pkeyrO )r r rJ Z pub_key_dupr rA r r r � public_key� s � � z_DHPrivateKey.public_keyc C s t | j| j�S r �r r r r* r r r � parameters� s z_DHPrivateKey.parameters)r- r. �encryption_algorithmr" c C s� |t jjurtd��| jjjsl| jj�d�}| jj� | j | jjj || jjj � |d | jjj krlt dt j��| j�|||| | j| j �S )Nz0DH private keys support only PKCS8 serializationr r r/ )r � PrivateFormatZPKCS8r1 r r r2 r r r r r r r r3 Z_private_key_bytesr> )r r- r. r\ r r r r � private_bytes� s2 � ���z_DHPrivateKey.private_bytesN)r6 r7 r8 r �property�intrB r rH rK � DHPublicKeyr; rW rQ rY � DHParametersr[ r r: r] ZKeySerializationEncryptionr^ r r r r r= Z s $�r= c @ s\ e Zd Zdd� Zeed�dd��Zejd�dd�Z ej d�dd �Z e j e jed �d d �Zd S )rO c C s& || _ || _|| _t| j | j�| _d S r )r r r> r< �_key_size_bitsr@ r r r r � s z_DHPublicKey.__init__r! c C s | j S r )rc r* r r r rB � s z_DHPublicKey.key_sizec C s | j j�d�}| j j�d�}| j j�d�}| j j�| j|||� | j �|d | j jjk� | j �|d | j jjk� |d | j jjkr�d }n| j �|d �}| j j�d�}| j j� | j|| j jj� | j �|d | j jjk� t j t j | j �|d �| j �|d �|d�| j �|d �d�S )Nr r r# rC ) r r r r r r r r r& rG r rI r' )r r$ r% r r( rJ r r r rE � s, ���z_DHPublicKey.public_numbersc C s t | j| j�S r rZ r* r r r r[ s z_DHPublicKey.parametersr, c C s� |t jjurtd��| jjjsl| jj�d�}| jj� | j | jjj || jjj � |d | jjj krlt dt j��| j�||| | jd �S )Nz>DH public keys support only SubjectPublicKeyInfo serializationr r r/ )r � PublicFormatZSubjectPublicKeyInfor1 r r r2 r r r r r r r r3 Z_public_key_bytesr> r4 r r r � public_bytes s( � �� �z_DHPublicKey.public_bytesN)r6 r7 r8 r r_ r` rB r rI rE rb r[ r r: rd r; re r r r r rO � s �rO N)Zcryptography.exceptionsr r Z cryptography.hazmat.primitivesr Z)cryptography.hazmat.primitives.asymmetricr r r rb r r` r< r9 r= ra rO r r r r �<module> s 1