o
    Ç `«  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$   e Zd Zdd„ Zdd„ Zdd„ ZdS )Ú_X448PublicKeyc                 C   ó   || _ || _d S ©N©Ú_backendÚ	_evp_pkey©ÚselfÚbackendZevp_pkey© r   úhome/ych/rk3568/buildroot/output/rockchip_rk3568/host/lib/python3.10/site-packages/cryptography/hazmat/backends/openssl/x448.pyÚ__init__   ó   
z_X448PublicKey.__init__c                 C   sV   |t jju s|t jju r |t jjus|t jjurtdƒ‚|  ¡ S | j ||| | jd ¡S )Nz3When using Raw both encoding and format must be Raw)	r   ÚEncodingÚRawÚPublicFormatÚ
ValueErrorÚ_raw_public_bytesr   Z_public_key_bytesr   )r   ÚencodingÚformatr   r   r   Úpublic_bytes   s   
ÿ
þ
ÿ
þÿÿz_X448PublicKey.public_bytesc                 C   óp   | j j dt¡}| j j dt¡}| j j | j||¡}| j  |dk¡ | j  |d tk¡ | j j |t¡d d … S ©Nzunsigned char []zsize_t *é   r   )	r   Ú_ffiÚnewÚ_X448_KEY_SIZEÚ_libÚEVP_PKEY_get_raw_public_keyr   Úopenssl_assertÚbuffer©r   ÚbufÚbuflenÚresr   r   r   r   +   ó   ÿz _X448PublicKey._raw_public_bytesN)Ú__name__Ú
__module__Ú__qualname__r   r   r   r   r   r   r   r      s    r   c                   @   s4   e Zd Zdd„ Zdd„ Zdd„ Zdd„ Zd	d
„ ZdS )Ú_X448PrivateKeyc                 C   r   r   r   r   r   r   r   r   8   r   z_X448PrivateKey.__init__c                 C   sd   | j j dt¡}| j j dt¡}| j j | j||¡}| j  |dk¡ | j  |d tk¡ | j  |¡S r!   )	r   r#   r$   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u s|t jju r&|t jjus|t jjust|t jƒs"t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PrivateFormatr4   ZNoEncryptionr   Ú_raw_private_bytesr   Z_private_key_bytesr   )r   r   r   Zencryption_algorithmr   r   r   Úprivate_bytesL   s&   
ÿ
þ
ÿ
þÿýÿÿz_X448PrivateKey.private_bytesc                 C   r    r!   )	r   r#   r$   r%   r&   ZEVP_PKEY_get_raw_private_keyr   r(   r)   r*   r   r   r   r7   c   r.   z"_X448PrivateKey._raw_private_bytesN)r/   r0   r1   r   r3   r6   r8   r7   r   r   r   r   r2   6   s    
r2   N)Ú
__future__r   r   r   Úcryptographyr   Z*cryptography.hazmat.backends.openssl.utilsr   Zcryptography.hazmat.primitivesr   Z.cryptography.hazmat.primitives.asymmetric.x448r   r	   r%   Zregister_interfaceÚobjectr   r2   r   r   r   r   Ú<module>   s   #