관리-도구
편집 파일: dsa.cpython-36.pyc
3 l�_ � @ s$ d dl mZmZmZ d dlZd dlZd dlmZ d dlm Z ej ej �G dd� de ��Z ej ej �G dd� de ��Zej ej �G d d � d e ��Zej ej �G d d � d e��Zej ej �G d d� de ��ZeZd dd�Zd dd�Zdd� Zdd� ZG dd� de �ZG dd� de �ZG dd � d e �ZdS ) � )�absolute_import�division�print_functionN)�utils)� _get_backendc @ s e Zd Zejdd� �ZdS )� DSAParametersc C s dS )z8 Generates and returns a DSAPrivateKey. N� )�selfr r �/usr/lib64/python3.6/dsa.py�generate_private_key s z"DSAParameters.generate_private_keyN)�__name__� __module__� __qualname__�abc�abstractmethodr r r r r r s r c @ s e Zd Zejdd� �ZdS )�DSAParametersWithNumbersc C s dS )z0 Returns a DSAParameterNumbers. Nr )r r r r �parameter_numbers s z*DSAParametersWithNumbers.parameter_numbersN)r r r r r r r r r r r s r c @ sR e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Z ejd d � �Z d S ) � DSAPrivateKeyc C s dS )z6 The bit length of the prime modulus. Nr )r r r r �key_size# s zDSAPrivateKey.key_sizec C s dS )zD The DSAPublicKey associated with this private key. Nr )r r r r � public_key) s zDSAPrivateKey.public_keyc C s dS )zL The DSAParameters object associated with this private key. Nr )r r r r � parameters/ s zDSAPrivateKey.parametersc C s dS )zN Returns an AsymmetricSignatureContext used for signing data. Nr )r �signature_algorithmr r r �signer5 s zDSAPrivateKey.signerc C s dS )z Signs the data Nr )r �data� algorithmr r r �sign; s zDSAPrivateKey.signN) r r r r �abstractpropertyr r r r r r r r r r r ! s r c @ s( e Zd Zejdd� �Zejdd� �ZdS )� DSAPrivateKeyWithSerializationc C s dS )z. Returns a DSAPrivateNumbers. Nr )r r r r �private_numbersD s z.DSAPrivateKeyWithSerialization.private_numbersc C s dS )z6 Returns the key serialized as bytes. Nr )r �encoding�formatZencryption_algorithmr r r � private_bytesJ s z,DSAPrivateKeyWithSerialization.private_bytesN)r r r r r r r! r r r r r B s r c @ s` e Zd Zejdd� �Zejdd� �Zejdd� �Zejdd� �Z ejd d � �Z ejd d � �Z d S )� DSAPublicKeyc C s dS )z6 The bit length of the prime modulus. Nr )r r r r r S s zDSAPublicKey.key_sizec C s dS )zK The DSAParameters object associated with this public key. Nr )r r r r r Y s zDSAPublicKey.parametersc C s dS )zQ Returns an AsymmetricVerificationContext used for signing data. Nr )r � signaturer r r r �verifier_ s zDSAPublicKey.verifierc C s dS )z- Returns a DSAPublicNumbers. Nr )r r r r �public_numberse s zDSAPublicKey.public_numbersc C s dS )z6 Returns the key serialized as bytes. Nr )r r r r r r � public_bytesk s zDSAPublicKey.public_bytesc C s dS )z5 Verifies the signature of the data. Nr )r r# r r r r r �verifyq s zDSAPublicKey.verifyN) r r r r r r r r r$ r% r& r' r r r r r" Q s r" c C s t |�}|j| �S )N)r Zgenerate_dsa_parameters)r �backendr r r �generate_parameters{ s r) c C s t |�}|j| �S )N)r Z'generate_dsa_private_key_and_parameters)r r( r r r r � s r c C sT | j j� d krtd��| jj� d kr,td ��d | j k oB| j k n sPtd ��d S )N� � � � z5p must be exactly 1024, 2048, 3072, or 4096 bits long� �� � z,q must be exactly 160, 224, or 256 bits long� z g, p don't satisfy 1 < g < p.)r* r+ r, r- )r. r/ r0 )�p� bit_length� ValueError�q�g)r r r r �_check_dsa_parameters� s r7 c C sT | j j}t|� | jdks&| j|jkr.td��| j jt|j| j|j �krPtd��d S )Nr zx must be > 0 and < q.z y must be equal to (g ** x % p).) r% r r7 �xr5 r4 �y�powr6 r2 )Znumbersr r r r �_check_dsa_private_numbers� s r; c @ sT e Zd Zdd� Zejd�Zejd�Zejd�Zddd�Z d d � Z d d � Z d d� Z dS )�DSAParameterNumbersc C sH t |tj� s*t |tj� s*t |tj� r2td��|| _|| _|| _d S )Nz;DSAParameterNumbers p, q, and g arguments must be integers.)� isinstance�six� integer_types� TypeError�_p�_q�_g)r r2 r5 r6 r r r �__init__� s z DSAParameterNumbers.__init__rA rB rC Nc C s t |�}|j| �S )N)r Zload_dsa_parameter_numbers)r r( r r r r � s z DSAParameterNumbers.parametersc C s2 t |t�stS | j|jko0| j|jko0| j|jkS )N)r= r< �NotImplementedr2 r5 r6 )r �otherr r r �__eq__� s zDSAParameterNumbers.__eq__c C s | |k S )Nr )r rF r r r �__ne__� s zDSAParameterNumbers.__ne__c C s dj | d�S )Nz9<DSAParameterNumbers(p={self.p}, q={self.q}, g={self.g})>)r )r )r r r r �__repr__� s z DSAParameterNumbers.__repr__)N) r r r rD r �read_only_propertyr2 r5 r6 r rG rH rI r r r r r< � s r< c @ sJ e Zd Zdd� Zejd�Zejd�Zddd�Zdd � Z d d � Z d d � Z dS )�DSAPublicNumbersc C s6 t |tj�std��t |t�s&td��|| _|| _d S )Nz/DSAPublicNumbers y argument must be an integer.z9parameter_numbers must be a DSAParameterNumbers instance.)r= r> r? r@ r< �_y�_parameter_numbers)r r9 r r r r rD � s zDSAPublicNumbers.__init__rL rM Nc C s t |�}|j| �S )N)r Zload_dsa_public_numbers)r r( r r r r � s zDSAPublicNumbers.public_keyc C s& t |t�stS | j|jko$| j|jkS )N)r= rK rE r9 r )r rF r r r rG � s zDSAPublicNumbers.__eq__c C s | |k S )Nr )r rF r r r rH � s zDSAPublicNumbers.__ne__c C s dj | d�S )NzJ<DSAPublicNumbers(y={self.y}, parameter_numbers={self.parameter_numbers})>)r )r )r r r r rI � s zDSAPublicNumbers.__repr__)N) r r r rD r rJ r9 r r rG rH rI r r r r rK � s rK c @ sB e Zd Zdd� Zejd�Zejd�Zd dd�Zdd � Z d d � Z dS ) �DSAPrivateNumbersc C s6 t |tj�std��t |t�s&td��|| _|| _d S )Nz0DSAPrivateNumbers x argument must be an integer.z3public_numbers must be a DSAPublicNumbers instance.)r= r> r? r@ rK �_public_numbers�_x)r r8 r% r r r rD � s zDSAPrivateNumbers.__init__rP rO Nc C s t |�}|j| �S )N)r Zload_dsa_private_numbers)r r( r r r � private_key� s z DSAPrivateNumbers.private_keyc C s& t |t�stS | j|jko$| j|jkS )N)r= rN rE r8 r% )r rF r r r rG � s zDSAPrivateNumbers.__eq__c C s | |k S )Nr )r rF r r r rH s zDSAPrivateNumbers.__ne__)N) r r r rD r rJ r8 r% rQ rG rH r r r r rN � s rN )N)N)Z __future__r r r r r> Z cryptographyr Z cryptography.hazmat.backendsr Z add_metaclass�ABCMeta�objectr r r r r" Z DSAPublicKeyWithSerializationr) r r7 r; r< rK rN r r r r �<module> s, & ''