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eZdS )    )absolute_importdivisionprint_function)utils)_evp_pkey_derive)serialization)X448PrivateKeyX448PublicKey8   c               @   s$   e Zd Zdd Zdd Zdd ZdS )_X448PublicKeyc             C   s   || _ || _d S )N)_backend	_evp_pkey)selfbackendevp_pkey r   /usr/lib64/python3.6/x448.py__init__   s    z_X448PublicKey.__init__c             C   sV   |t jjks|t jjkr@|t jjk	s0|t jjk	r8td| j S | jj||| | jd S )Nz3When using Raw both encoding and format must be Raw)	r   EncodingRawPublicFormat
ValueError_raw_public_bytesr   Z_public_key_bytesr   )r   encodingformatr   r   r   public_bytes   s    z_X448PublicKey.public_bytesc             C   sp   | j jjdt}| j jjdt}| j jj| j||}| j j|dk | j j|d tk | j jj|td d  S )Nzunsigned char []zsize_t *   r   )	r   _ffinew_X448_KEY_SIZE_libEVP_PKEY_get_raw_public_keyr   openssl_assertbuffer)r   bufbuflenresr   r   r   r   +   s    z _X448PublicKey._raw_public_bytesN)__name__
__module____qualname__r   r   r   r   r   r   r   r      s   r   c               @   s4   e Zd Zdd Zdd Zdd Zdd Zd	d
 ZdS )_X448PrivateKeyc             C   s   || _ || _d S )N)r   r   )r   r   r   r   r   r   r   8   s    z_X448PrivateKey.__init__c             C   sd   | j jjdt}| j jjdt}| j jj| j||}| j j|dk | j j|d tk | j j|S )Nzunsigned char []zsize_t *r   r   )	r   r   r   r   r    r!   r   r"   Zx448_load_public_bytes)r   r$   r%   r&   r   r   r   
public_key<   s    z_X448PrivateKey.public_keyc             C   s"   t |tstdt| j| j|S )Nz&peer_public_key must be X448PublicKey.)
isinstancer	   	TypeErrorr   r   r   )r   Zpeer_public_keyr   r   r   exchangeF   s    
z_X448PrivateKey.exchangec             C   sf   |t jjks|t jjkrN|t jjk	s>|t jjk	s>t|t j rFtd| j S | j	j
|||| | jd S )NzcWhen using Raw both encoding and format must be Raw and encryption_algorithm must be NoEncryption())r   r   r   r   ZPrivateFormatr,   ZNoEncryptionr   _raw_private_bytesr   Z_private_key_bytesr   )r   r   r   Zencryption_algorithmr   r   r   private_bytesL   s    z_X448PrivateKey.private_bytesc             C   sp   | j jjdt}| j jjdt}| j jj| j||}| j j|dk | j j|d tk | j jj|td d  S )Nzunsigned char []zsize_t *r   r   )	r   r   r   r   r    ZEVP_PKEY_get_raw_private_keyr   r"   r#   )r   r$   r%   r&   r   r   r   r/   c   s    z"_X448PrivateKey._raw_private_bytesN)r'   r(   r)   r   r+   r.   r0   r/   r   r   r   r   r*   6   s
   
r*   N)Z
__future__r   r   r   Zcryptographyr   Z*cryptography.hazmat.backends.openssl.utilsr   Zcryptography.hazmat.primitivesr   Z.cryptography.hazmat.primitives.asymmetric.x448r   r	   r   Zregister_interfaceobjectr   r*   r   r   r   r   <module>   s   #