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l_                 @   s   d dl mZmZmZ d dlZd dlZd dlmZ d dlm	Z	 dddZ
G dd deZG d	d
 d
eZG dd deZejejG dd deZeZejejG dd deZejejG dd deZejejG dd deZeZdS )    )absolute_importdivisionprint_functionN)utils)_get_backendc             C   s   t |}|j| |S )N)r   Zgenerate_dh_parameters)	generatorkey_sizebackend r
   /usr/lib64/python3.6/dh.pygenerate_parameters   s    r   c               @   sB   e Zd Zdd Zdd Zdd Zddd	Zejd
Z	ejdZ
dS )DHPrivateNumbersc             C   s6   t |tjstdt |ts&td|| _|| _d S )Nzx must be an integer.z6public_numbers must be an instance of DHPublicNumbers.)
isinstancesixinteger_types	TypeErrorDHPublicNumbers_x_public_numbers)selfxpublic_numbersr
   r
   r   __init__   s    
zDHPrivateNumbers.__init__c             C   s&   t |tstS | j|jko$| j|jkS )N)r   r   NotImplementedr   r   )r   otherr
   r
   r   __eq__!   s    
zDHPrivateNumbers.__eq__c             C   s
   | |k S )Nr
   )r   r   r
   r
   r   __ne__*   s    zDHPrivateNumbers.__ne__Nc             C   s   t |}|j| S )N)r   Zload_dh_private_numbers)r   r	   r
   r
   r   private_key-   s    zDHPrivateNumbers.private_keyr   r   )N)__name__
__module____qualname__r   r   r   r   r   read_only_propertyr   r   r
   r
   r
   r   r      s   	

r   c               @   sB   e Zd Zdd Zdd Zdd Zddd	Zejd
Z	ejdZ
dS )r   c             C   s6   t |tjstdt |ts&td|| _|| _d S )Nzy must be an integer.z5parameters must be an instance of DHParameterNumbers.)r   r   r   r   DHParameterNumbers_y_parameter_numbers)r   yparameter_numbersr
   r
   r   r   6   s    
zDHPublicNumbers.__init__c             C   s&   t |tstS | j|jko$| j|jkS )N)r   r   r   r#   r$   )r   r   r
   r
   r   r   B   s    
zDHPublicNumbers.__eq__c             C   s
   | |k S )Nr
   )r   r   r
   r
   r   r   K   s    zDHPublicNumbers.__ne__Nc             C   s   t |}|j| S )N)r   Zload_dh_public_numbers)r   r	   r
   r
   r   
public_keyN   s    zDHPublicNumbers.public_keyr#   r$   )N)r   r   r    r   r   r   r'   r   r!   r%   r&   r
   r
   r
   r   r   5   s   	

r   c               @   sN   e Zd ZdddZdd Zdd Zddd	Zejd
Z	ejdZ
ejdZdS )r"   Nc             C   sh   t |tj st |tj r$td|d k	rBt |tj rBtd|dk rRtd|| _|| _|| _d S )Nzp and g must be integerszq must be integer or None   z!DH generator must be 2 or greater)r   r   r   r   
ValueError_p_g_q)r   pgqr
   r
   r   r   W   s    zDHParameterNumbers.__init__c             C   s2   t |tstS | j|jko0| j|jko0| j|jkS )N)r   r"   r   r*   r+   r,   )r   r   r
   r
   r   r   f   s    
zDHParameterNumbers.__eq__c             C   s
   | |k S )Nr
   )r   r   r
   r
   r   r   n   s    zDHParameterNumbers.__ne__c             C   s   t |}|j| S )N)r   Zload_dh_parameter_numbers)r   r	   r
   r
   r   
parametersq   s    zDHParameterNumbers.parametersr*   r+   r,   )N)N)r   r   r    r   r   r   r0   r   r!   r-   r.   r/   r
   r
   r
   r   r"   V   s   



r"   c               @   s6   e Zd Zejdd Zejdd Zejdd ZdS )DHParametersc             C   s   dS )z7
        Generates and returns a DHPrivateKey.
        Nr
   )r   r
   r
   r   generate_private_key|   s    z!DHParameters.generate_private_keyc             C   s   dS )z=
        Returns the parameters serialized as bytes.
        Nr
   )r   encodingformatr
   r
   r   parameter_bytes   s    zDHParameters.parameter_bytesc             C   s   dS )z/
        Returns a DHParameterNumbers.
        Nr
   )r   r
   r
   r   r&      s    zDHParameters.parameter_numbersN)r   r   r    abcabstractmethodr2   r5   r&   r
   r
   r
   r   r1   z   s   r1   c               @   sD   e Zd Zejdd Zejdd Zejdd Zejdd Z	d	S )
DHPrivateKeyc             C   s   dS )z6
        The bit length of the prime modulus.
        Nr
   )r   r
   r
   r   r      s    zDHPrivateKey.key_sizec             C   s   dS )zC
        The DHPublicKey associated with this private key.
        Nr
   )r   r
   r
   r   r'      s    zDHPrivateKey.public_keyc             C   s   dS )zK
        The DHParameters object associated with this private key.
        Nr
   )r   r
   r
   r   r0      s    zDHPrivateKey.parametersc             C   s   dS )zn
        Given peer's DHPublicKey, carry out the key exchange and
        return shared key as bytes.
        Nr
   )r   Zpeer_public_keyr
   r
   r   exchange   s    zDHPrivateKey.exchangeN)
r   r   r    r6   abstractpropertyr   r7   r'   r0   r9   r
   r
   r
   r   r8      s   r8   c               @   s(   e Zd Zejdd Zejdd ZdS )DHPrivateKeyWithSerializationc             C   s   dS )z-
        Returns a DHPrivateNumbers.
        Nr
   )r   r
   r
   r   private_numbers   s    z-DHPrivateKeyWithSerialization.private_numbersc             C   s   dS )z6
        Returns the key serialized as bytes.
        Nr
   )r   r3   r4   Zencryption_algorithmr
   r
   r   private_bytes   s    z+DHPrivateKeyWithSerialization.private_bytesN)r   r   r    r6   r7   r<   r=   r
   r
   r
   r   r;      s   r;   c               @   sD   e Zd Zejdd Zejdd Zejdd Zejdd Z	d	S )
DHPublicKeyc             C   s   dS )z6
        The bit length of the prime modulus.
        Nr
   )r   r
   r
   r   r      s    zDHPublicKey.key_sizec             C   s   dS )zJ
        The DHParameters object associated with this public key.
        Nr
   )r   r
   r
   r   r0      s    zDHPublicKey.parametersc             C   s   dS )z,
        Returns a DHPublicNumbers.
        Nr
   )r   r
   r
   r   r      s    zDHPublicKey.public_numbersc             C   s   dS )z6
        Returns the key serialized as bytes.
        Nr
   )r   r3   r4   r
   r
   r   public_bytes   s    zDHPublicKey.public_bytesN)
r   r   r    r6   r:   r   r7   r0   r   r?   r
   r
   r
   r   r>      s   r>   )N)Z
__future__r   r   r   r6   r   Zcryptographyr   Zcryptography.hazmat.backendsr   r   objectr   r   r"   Zadd_metaclassABCMetar1   ZDHParametersWithSerializationr8   r;   r>   ZDHPublicKeyWithSerializationr
   r
   r
   r   <module>   s$   
!!$