U
    e]N                     @   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 ZG dd de	Z
G dd	 d	e	ZG d
d de	ZeejG dd de	ZeZeejG dd de	ZeejG dd deZeejG dd de	ZeZdS )    )absolute_importdivisionprint_functionN)utilsc                 C   s   | | |S N)Zgenerate_dh_parameters)	generatorkey_sizebackend r
   N/usr/lib/python3/dist-packages/cryptography/hazmat/primitives/asymmetric/dh.pygenerate_parameters   s    r   c                   @   s@   e Zd Zdd Zdd Zdd Zdd Zed	Z	e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$| j|jkS r   )r   r   NotImplementedr   r   r   otherr
   r
   r   __eq__   s
    

zDHPrivateNumbers.__eq__c                 C   s
   | |k S r   r
   r   r
   r
   r   __ne__'   s    zDHPrivateNumbers.__ne__c                 C   s
   | | S r   )Zload_dh_private_numbersr   r	   r
   r
   r   private_key*   s    zDHPrivateNumbers.private_keyr   r   N)__name__
__module____qualname__r   r   r   r   r   read_only_propertyr   r   r
   r
   r
   r   r      s   	
r   c                   @   s@   e Zd Zdd Zdd Zdd Zdd Zed	Z	ed
Z
dS )r   c                 C   s6   t |tjstdt |ts&td|| _|| _d S )Nzy must be an integer.z5parameters must be an instance of DHParameterNumbers.)r   r   r   r   DHParameterNumbers_y_parameter_numbers)r   yparameter_numbersr
   r
   r   r   2   s    
zDHPublicNumbers.__init__c                 C   s&   t |tstS | j|jko$| j|jkS r   )r   r   r   r%   r&   r   r
   r
   r   r   =   s
    

zDHPublicNumbers.__eq__c                 C   s
   | |k S r   r
   r   r
   r
   r   r   F   s    zDHPublicNumbers.__ne__c                 C   s
   | | S r   )Zload_dh_public_numbersr   r
   r
   r   
public_keyI   s    zDHPublicNumbers.public_keyr%   r&   N)r    r!   r"   r   r   r   r)   r   r#   r'   r(   r
   r
   r
   r   r   1   s   	
r   c                   @   sL   e Zd ZdddZdd Zdd Zdd	 Zed
Z	edZ
edZdS )r$   Nc                 C   sb   t |tjrt |tjs td|d k	r<t |tjs<td|dk rLtd|| _|| _|| _d S )Nzp and g must be integerszq must be integer or None   z!DH generator must be 2 or greater)r   r   r   r   
ValueError_p_g_q)r   pgqr
   r
   r   r   Q   s    

zDHParameterNumbers.__init__c                 C   s2   t |tstS | j|jko0| j|jko0| j|jkS r   )r   r$   r   r,   r-   r.   r   r
   r
   r   r   a   s    


zDHParameterNumbers.__eq__c                 C   s
   | |k S r   r
   r   r
   r
   r   r   k   s    zDHParameterNumbers.__ne__c                 C   s
   | | S r   )Zload_dh_parameter_numbersr   r
   r
   r   
parametersn   s    zDHParameterNumbers.parametersr,   r-   r.   )N)r    r!   r"   r   r   r   r2   r   r#   r/   r0   r1   r
   r
   r
   r   r$   P   s   



r$   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_keyx   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
   r4   r
   r
   r   r(      s    zDHParameters.parameter_numbersN)r    r!   r"   abcabstractmethodr5   r9   r(   r
   r
   r
   r   r3   v   s   

r3   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
   r4   r
   r
   r   r      s    zDHPrivateKey.key_sizec                 C   s   dS )zC
        The DHPublicKey associated with this private key.
        Nr
   r4   r
   r
   r   r)      s    zDHPrivateKey.public_keyc                 C   s   dS )zK
        The DHParameters object associated with this private key.
        Nr
   r4   r
   r
   r   r2      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"   r:   abstractpropertyr   r;   r)   r2   r>   r
   r
   r
   r   r<      s   


r<   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
   r4   r
   r
   r   private_numbers   s    z-DHPrivateKeyWithSerialization.private_numbersc                 C   s   dS z6
        Returns the key serialized as bytes.
        Nr
   )r   r7   r8   Zencryption_algorithmr
   r
   r   private_bytes   s    z+DHPrivateKeyWithSerialization.private_bytesN)r    r!   r"   r:   r;   rA   rC   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 r=   r
   r4   r
   r
   r   r      s    zDHPublicKey.key_sizec                 C   s   dS )zJ
        The DHParameters object associated with this public key.
        Nr
   r4   r
   r
   r   r2      s    zDHPublicKey.parametersc                 C   s   dS )z,
        Returns a DHPublicNumbers.
        Nr
   r4   r
   r
   r   r      s    zDHPublicKey.public_numbersc                 C   s   dS rB   r
   r6   r
   r
   r   public_bytes   s    zDHPublicKey.public_bytesN)
r    r!   r"   r:   r?   r   r;   r2   r   rE   r
   r
   r
   r   rD      s   


rD   )Z
__future__r   r   r   r:   r   Zcryptographyr   r   objectr   r   r$   Zadd_metaclassABCMetar3   ZDHParametersWithSerializationr<   r@   rD   ZDHPublicKeyWithSerializationr
   r
   r
   r   <module>   s"   &



