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o -&%a- � @ sP d dl mZ d dlmZ d dlmZmZ dZG dd� de�ZG dd� de�Z d S ) � )�_evp_pkey_derive)� serialization)�X448PrivateKey� X448PublicKey�8 c @ s< e Zd Zdd� Zdejdejdefdd�Zdefdd �Z d S ) �_X448PublicKeyc C � || _ || _d S �N��_backend� _evp_pkey��self�backend�evp_pkey� r �K/usr/lib/python3/dist-packages/cryptography/hazmat/backends/openssl/x448.py�__init__ � z_X448PublicKey.__init__�encoding�format�returnc C sV |t jju s |t jju r |t jjus|t jjur td��| �� S | j�||| | jd �S )Nz3When using Raw both encoding and format must be Raw) r �Encoding�Raw� PublicFormat� ValueError�_raw_public_bytesr �_public_key_bytesr )r r r r r r � public_bytes s � �z_X448PublicKey.public_bytesc C �p | j j�dt�}| j j�dt�}| j j�| j||�}| j �|dk� | j �|d tk� | j j�|t�d d � S �Nzunsigned char []zsize_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 , � �z _X448PublicKey._raw_public_bytesN) �__name__� __module__� __qualname__r r r r �bytesr r r r r r r s �� �r c @ sb e Zd Zdd� Zdefdd�Zdedefdd�Zd ej d ej d ej defd d �Z defdd�Z dS )�_X448PrivateKeyc C r r r r r r r r 8 r z_X448PrivateKey.__init__r c C sd | j j�dt�}| j j�dt�}| j j�| j||�}| j �|dk� | j �|d tk� | j �|�S r ) r r" r# r$ r% r& r r' �x448_load_public_bytesr) r r r � public_key< s � z_X448PrivateKey.public_key�peer_public_keyc C s" t |t�s td��t| j| j|�S )Nz&peer_public_key must be X448PublicKey.)� isinstancer � TypeErrorr r r )r r5 r r r �exchangeF s z_X448PrivateKey.exchanger r �encryption_algorithmc C sd |t jju s |t jju r&|t jjus |t jjus t|t j�s"td��| �� 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 � PrivateFormatr6 � NoEncryptionr �_raw_private_bytesr �_private_key_bytesr )r r r r9 r r r � private_bytesL s ����z _X448PrivateKey.private_bytesc C r r ) r r" r# r$ r% � EVP_PKEY_get_raw_private_keyr r' r( r) r r r r< h r- z"_X448PrivateKey._raw_private_bytesN)r. r/ r0 r r r4 r1 r8 r r r: �KeySerializationEncryptionr> r< r r r r r2 7 s ��� � r2 N) �*cryptography.hazmat.backends.openssl.utilsr � cryptography.hazmat.primitivesr �.cryptography.hazmat.primitives.asymmetric.x448r r r$ r r2 r r r r �<module> s '
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