U
    *”}f«  ã                   @   s„   d dl mZmZmZ d dlmZ d dlmZ d dlm	Z	 d dl
mZmZ dZe e¡G dd„ deƒƒZe e¡G d	d
„ d
eƒƒZdS )é    )Úabsolute_importÚdivisionÚprint_function)Úutils)Ú_evp_pkey_derive)Úserialization)ÚX448PrivateKeyÚX448PublicKeyé8   c                   @   s$   e Zd Zdd„ Zdd„ Zdd„ ZdS )Ú_X448PublicKeyc                 C   s   || _ || _d S ©N©Ú_backendÚ	_evp_pkey©ÚselfÚbackendZevp_pkey© r   úM/tmp/pip-unpacked-wheel-x36vw73o/cryptography/hazmat/backends/openssl/x448.pyÚ__init__   s    z_X448PublicKey.__init__c                 C   sV   |t jjks|t jjkr@|t jjk	s0|t jjk	r8tdƒ‚|  ¡ S | j ||| | jd ¡S )Nz3When using Raw both encoding and format must be Raw)	r   ÚEncodingÚRawÚPublicFormatÚ
ValueErrorÚ_raw_public_bytesr   Z_public_key_bytesr   )r   ÚencodingÚformatr   r   r   Úpublic_bytes   s&    
ÿ
þ
ÿ
þÿ    ÿz_X448PublicKey.public_bytesc                 C   sp   | j j dt¡}| j j dt¡}| j j | j||¡}| j  |dk¡ | j  |d tk¡ | j j |t¡d d … S ©Nzunsigned char []zsize_t *é   r   )	r   Ú_ffiÚnewÚ_X448_KEY_SIZEÚ_libÚEVP_PKEY_get_raw_public_keyr   Úopenssl_assertÚbuffer©r   ÚbufÚbuflenÚresr   r   r   r   +   s      ÿz _X448PublicKey._raw_public_bytesN)Ú__name__Ú
__module__Ú__qualname__r   r   r   r   r   r   r   r      s   r   c                   @   s4   e Zd Zdd„ Zdd„ Zdd„ Zdd„ Zd	d
„ ZdS )Ú_X448PrivateKeyc                 C   s   || _ || _d S r   r   r   r   r   r   r   8   s    z_X448PrivateKey.__init__c                 C   sd   | j j dt¡}| j j dt¡}| j j | j||¡}| j  |dk¡ | j  |d tk¡ | j  |¡S r   )	r   r    r!   r"   r#   r$   r   r%   Zx448_load_public_bytesr'   r   r   r   Ú
public_key<   s      ÿz_X448PrivateKey.public_keyc                 C   s"   t |tƒstdƒ‚t| j| j|ƒS )Nz&peer_public_key must be X448PublicKey.)Ú
isinstancer	   Ú	TypeErrorr   r   r   )r   Zpeer_public_keyr   r   r   ÚexchangeF   s    
z_X448PrivateKey.exchangec                 C   sd   |t jjks|t jjkrL|t jjk	s<|t jjk	s<t|t jƒsDtdƒ‚|  ¡ S | 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PrivateFormatr0   ZNoEncryptionr   Ú_raw_private_bytesr   Z_private_key_bytesr   )r   r   r   Zencryption_algorithmr   r   r   Úprivate_bytesL   s2    
ÿ
þ
ÿ
þ ÿýÿ     ÿz_X448PrivateKey.private_bytesc                 C   sp   | j j dt¡}| j j dt¡}| j j | j||¡}| j  |dk¡ | j  |d tk¡ | j j |t¡d d … S r   )	r   r    r!   r"   r#   ZEVP_PKEY_get_raw_private_keyr   r%   r&   r'   r   r   r   r3   c   s      ÿz"_X448PrivateKey._raw_private_bytesN)r+   r,   r-   r   r/   r2   r4   r3   r   r   r   r   r.   6   s
   
r.   N)Ú
__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_interfaceÚobjectr   r.   r   r   r   r   Ú<module>   s   #