File: //lib/python3/dist-packages/cryptography/hazmat/primitives/asymmetric/__pycache__/ec.cpython-38.pyc
U
�)%a9 � & @ s8 U d dl Z d dlZd dlZd dlmZ d dlmZ d dlmZ d dl m
Z
m Z d dl m
Z
mZmZ G dd� de�ZG d d
� d
e jd �ZG d d
� d
e jd �ZG dd� de jd �ZeZG dd� de jd �ZeZG dd� de�ZG dd� de�ZG dd� de�ZG dd� de�Z G dd� de�Z G d d � d e�Z G d d � d e�Z G d d!� d!e�Z G d"d#� d#e�Z!G d$d%� d%e�Z"G d&d'� d'e�Z#G d(d)� d)e�Z$G d*d+� d+e�Z%G d,d-� d-e�Z&G d.d/� d/e�Z'G d0d1� d1e�Z(G d2d3� d3e�Z)G d4d5� d5e�Z*G d6d7� d7e�Z+e(e%e(e'e%e$e#e&e"e!e e e e e eeee)e*e+d8�Z,ej-e.ej/e f e0d9< G d:d;� d;e�Z1dKeed<�d=d>�Z2dLe3eed?�d@dA�Z4G dBdC� dCe�Z5G dDdE� dEe�Z6G dFdG� dGe�Z7ej(e(ej'e'ej&e&ej%e%ej$e$ej#e#ej8e)ej9e*ej:e+ej"e"ej e ej!e!ej e ej e ejeej e ejeej e ejeiZ;eej/e dH�dIdJ�Z<dS )M� N)�utils)�ObjectIdentifier)� _get_backend)�_serialization�hashes)�AsymmetricSignatureContext� AsymmetricVerificationContextr c @ s� e Zd Zed�Zed�Zed�Zed�Zed�Zed�Z ed�Z
ed�Z ed �Z ed
�Z
ed �Zed �Zed
�Zed�Zed�Zed�Zed�Zed�Zed�ZdS )�EllipticCurveOIDz1.2.840.10045.3.1.1z 1.3.132.0.33z 1.3.132.0.10z1.2.840.10045.3.1.7z 1.3.132.0.34z 1.3.132.0.35z1.3.36.3.3.2.8.1.1.7z1.3.36.3.3.2.8.1.1.11z1.3.36.3.3.2.8.1.1.13z 1.3.132.0.1z 1.3.132.0.15z 1.3.132.0.26z 1.3.132.0.27z 1.3.132.0.16z 1.3.132.0.17z 1.3.132.0.36z 1.3.132.0.37z 1.3.132.0.38z 1.3.132.0.39N)�__name__�
__module__� __qualname__r � SECP192R1� SECP224R1� SECP256K1� SECP256R1� SECP384R1� SECP521R1�BRAINPOOLP256R1�BRAINPOOLP384R1�BRAINPOOLP512R1� SECT163K1� SECT163R2� SECT233K1� SECT233R1� SECT283K1� SECT283R1� SECT409K1� SECT409R1� SECT571K1� SECT571R1� r r �N/usr/lib/python3/dist-packages/cryptography/hazmat/primitives/asymmetric/ec.pyr s& r c @ s4 e Zd Zejed�dd��Zejed�dd��ZdS )�
EllipticCurve��returnc C s dS )z8
The name of the curve. e.g. secp256r1.
Nr ��selfr r r! �name, s zEllipticCurve.namec C s dS �z<
Bit size of a secret scalar for the curve.
Nr r% r r r! �key_size2 s zEllipticCurve.key_sizeN) r
r r �abc�abstractproperty�strr' �intr) r r r r! r" + s r" )� metaclassc @ s. e Zd Zejejeje j
f d�dd��Z dS )� EllipticCurveSignatureAlgorithmr# c C s dS )z@
The digest algorithm used with this signature.
Nr r% r r r! � algorithm: s z)EllipticCurveSignatureAlgorithm.algorithmN) r
r r r* r+ �typing�Union�
asym_utils� Prehashedr �
HashAlgorithmr0 r r r r! r/ 9 s �r/ c @ s� e Zd Zejeed�dd��Zejdded�dd��Z ejdd �d
d ��Z
ej e d �d d
��Z
ej ed �dd��Zejeed�dd��Zejdd �dd��Zejejejejed�dd��ZdS )�EllipticCurvePrivateKey)�signature_algorithmr$ c C s dS )zN
Returns an AsymmetricSignatureContext used for signing data.
Nr )r& r7 r r r! �signerD s z EllipticCurvePrivateKey.signer�ECDH�EllipticCurvePublicKey)r0 �peer_public_keyr$ c C s dS )z}
Performs a key exchange operation using the provided algorithm with the
provided peer's public key.
Nr )r& r0 r; r r r! �exchangeM s z EllipticCurvePrivateKey.exchanger# c C s dS )zB
The EllipticCurvePublicKey for this private key.
Nr r% r r r! �
public_keyV s z"EllipticCurvePrivateKey.public_keyc C s dS �z8
The EllipticCurve that this key is on.
Nr r% r r r! �curve\ s z EllipticCurvePrivateKey.curvec C s dS r( r r% r r r! r) b s z EllipticCurvePrivateKey.key_sizec C s dS )z
Signs the data
Nr )r& �datar7 r r r! �signh s z EllipticCurvePrivateKey.sign�EllipticCurvePrivateNumbersc C s dS )z9
Returns an EllipticCurvePrivateNumbers.
Nr r% r r r! �private_numbersr s z'EllipticCurvePrivateKey.private_numbers)�encoding�format�encryption_algorithmr$ c C s dS �z6
Returns the key serialized as bytes.
Nr )r& rD rE rF r r r! �
private_bytesx s z%EllipticCurvePrivateKey.private_bytesN)r
r r r* �abstractmethodr/ r r8 �bytesr< r= r+ r" r? r- r) rA rC r �Encoding�
PrivateFormat�KeySerializationEncryptionrH r r r r! r6 C s6 � �� �r6 c @ s� e Zd Zejeeed�dd��Zej e
d�dd��Z ej e d�dd��Z
ejd d�d
d ��Zejejejed �d
d��Zejeeedd�dd��Zee
ed d�dd��ZdS )r: )� signaturer7 r$ c C s dS )zQ
Returns an AsymmetricVerificationContext used for signing data.
Nr )r& rN r7 r r r! �verifier� s z EllipticCurvePublicKey.verifierr# c C s dS r> r r% r r r! r? � s z EllipticCurvePublicKey.curvec C s dS r( r r% r r r! r) � s z EllipticCurvePublicKey.key_size�EllipticCurvePublicNumbersc C s dS )z8
Returns an EllipticCurvePublicNumbers.
Nr r% r r r! �public_numbers� s z%EllipticCurvePublicKey.public_numbers)rD rE r$ c C s dS rG r )r& rD rE r r r! � public_bytes� s z#EllipticCurvePublicKey.public_bytesN)rN r@ r7 r$ c C s dS )z5
Verifies the signature of the data.
Nr )r& rN r@ r7 r r r! �verify� s z EllipticCurvePublicKey.verify�r? r@ r$ c C s^ t �d|� t|t�s td��t|�dkr2td��|d dkrFtd��ddlm} |� ||�S )Nr@ �'curve must be an EllipticCurve instancer z%data must not be an empty byte string)� � � �%Unsupported elliptic curve point type)�backend)
r � _check_bytes�
isinstancer" � TypeError�len�
ValueError�,cryptography.hazmat.backends.openssl.backendrZ Z load_elliptic_curve_public_bytes)�clsr? r@ rZ r r r! �from_encoded_point� s
z)EllipticCurvePublicKey.from_encoded_point)r
r r r* rI rJ r/ r rO r+ r" r? r- r) rQ r rK � PublicFormatrR rS � classmethodrb r r r r! r: � s6 � � �
�r: c @ s e Zd ZdZdZdS )r � sect571r1i: N�r
r r r' r) r r r r! r � s r c @ s e Zd ZdZdZdS )r � sect409r1� Nrf r r r r! r � s r c @ s e Zd ZdZdZdS )r � sect283r1� Nrf r r r r! r � s r c @ s e Zd ZdZdZdS )r � sect233r1�� Nrf r r r r! r � s r c @ s e Zd ZdZdZdS )r � sect163r2� Nrf r r r r! r � s r c @ s e Zd ZdZdZdS )r � sect571k1i; Nrf r r r r! r � s r c @ s e Zd ZdZdZdS )r � sect409k1rh Nrf r r r r! r � s r c @ s e Zd ZdZdZdS )r � sect283k1rj Nrf r r r r! r � s r c @ s e Zd ZdZdZdS )r � sect233k1rl Nrf r r r r! r � s r c @ s e Zd ZdZdZdS )r � sect163k1rn Nrf r r r r! r � s r c @ s e Zd ZdZdZdS )r � secp521r1i Nrf r r r r! r s r c @ s e Zd ZdZdZdS )r � secp384r1� Nrf r r r r! r s r c @ s e Zd ZdZdZdS )r � secp256r1� Nrf r r r r! r s r c @ s e Zd ZdZdZdS )r � secp256k1rx Nrf r r r r! r s r c @ s e Zd ZdZdZdS )r � secp224r1�� Nrf r r r r! r s r c @ s e Zd ZdZdZdS )r
� secp192r1� Nrf r r r r! r
s r
c @ s e Zd ZdZdZdS )�BrainpoolP256R1�brainpoolP256r1rx Nrf r r r r! r~ s r~ c @ s e Zd ZdZdZdS )�BrainpoolP384R1�brainpoolP384r1rv Nrf r r r r! r� % s r� c @ s e Zd ZdZdZdS )�BrainpoolP512R1�brainpoolP512r1i Nrf r r r r! r� * s r� )Z
prime192v1Z
prime256v1r| rz rw ru rt ry rs rr rq rp ro rm rk ri rg re r r� r� � _CURVE_TYPESc @ s e Zd Zdd� Ze�d�ZdS )�ECDSAc C s
|| _ d S �N)�
_algorithm)r& r0 r r r! �__init__I s zECDSA.__init__r� N)r
r r r� r �read_only_propertyr0 r r r r! r� H s r� )r? r$ c C s t |�}|�| �S r� )r �#generate_elliptic_curve_private_key)r? rZ r r r! �generate_private_keyO s r� )�
private_valuer? r$ c C sH t |�}t| t�std��| dkr*td��t|t�s<td��|�| |�S )Nz&private_value must be an integer type.r z)private_value must be a positive integer.�/curve must provide the EllipticCurve interface.)r r\ r- r] r_ r" �!derive_elliptic_curve_private_key)r� r? rZ r r r! �derive_private_keyV s
r� c @ s� e Zd Zeeed�dd�Zded�dd�Zed�dd �Z e
eed d
�d d ��Z e �
d
�Ze �
d�Ze �
d�Zdd� Zdd� Zdd� Zdd� ZdS )rP )�x�yr? c C sD t |t�rt |t�s td��t |t�s.td��|| _|| _|| _d S )Nzx and y must be integers.r� )r\ r- r] r" �_y�_x�_curve)r& r� r� r? r r r! r� g s
z#EllipticCurvePublicNumbers.__init__Nr# c C s t |�}|�| �S r� )r �"load_elliptic_curve_public_numbers�r& rZ r r r! r= r s z%EllipticCurvePublicNumbers.public_keyc C sB t jdtjdd� | jjd d }dt�| j|� t�| j|� S )Nz�encode_point has been deprecated on EllipticCurvePublicNumbers and will be removed in a future version. Please use EllipticCurvePublicKey.public_bytes to obtain both compressed and uncompressed point encoding.rV ��
stacklevel� � � ) �warnings�warnr �PersistentlyDeprecated2019r? r) � int_to_bytesr� r� )r& � byte_lengthr r r! � encode_pointv s � � ��z'EllipticCurvePublicNumbers.encode_pointrT c C s� t |t�std��tjdtjdd� |�d�r�|jd d }t |�d| d kr�t
� |d|d � d �}t
� ||d d � d �}| |||�S t d
��nt d ��d S ) NrU z�Support for unsafe construction of public numbers from encoded data will be removed in a future version. Please use EllipticCurvePublicKey.from_encoded_pointrV r� r� r� r� � �bigz(Invalid elliptic curve point data lengthrY )
r\ r" r] r� r� r r� �
startswithr) r^ r- �
from_bytesr_ )ra r? r@ r� r� r� r r r! rb � s
�
z-EllipticCurvePublicNumbers.from_encoded_pointr� r� r� c C sF t |t�stS | j|jkoD| j|jkoD| jj|jjkoD| jj|jjkS r� )r\ rP �NotImplementedr� r� r? r' r) �r& �otherr r r! �__eq__� s
���z!EllipticCurvePublicNumbers.__eq__c C s
| |k S r� r r� r r r! �__ne__� s z!EllipticCurvePublicNumbers.__ne__c C s t | j| j| jj| jjf�S r� )�hashr� r� r? r' r) r% r r r! �__hash__� s z#EllipticCurvePublicNumbers.__hash__c C s
d� | �S )NzC<EllipticCurvePublicNumbers(curve={0.curve.name}, x={0.x}, y={0.y}>)rE r% r r r! �__repr__� s ��z#EllipticCurvePublicNumbers.__repr__)N)r
r r r- r" r� r: r= rJ r� rd rb r r� r? r� r� r� r� r� r� r r r r! rP f s �
rP c @ sX e Zd Zeed�dd�Zded�dd�Ze� d�Z
e� d �Z d
d � Z d d
� Z
dd� ZdS )rB )r� rQ c C s4 t |t�std��t |t�s$td��|| _|| _d S )Nz!private_value must be an integer.z>public_numbers must be an EllipticCurvePublicNumbers instance.)r\ r- r] rP �_private_value�_public_numbers)r& r� rQ r r r! r� � s
�z$EllipticCurvePrivateNumbers.__init__Nr# c C s t |�}|�| �S r� )r �#load_elliptic_curve_private_numbersr� r r r! � private_key� s z'EllipticCurvePrivateNumbers.private_keyr� r� c C s& t |t�stS | j|jko$| j|jkS r� )r\ rB r� r� rQ r� r r r! r� � s
�z"EllipticCurvePrivateNumbers.__eq__c C s
| |k S r� r r� r r r! r� � s z"EllipticCurvePrivateNumbers.__ne__c C s t | j| jf�S r� )r� r� rQ r% r r r! r� � s z$EllipticCurvePrivateNumbers.__hash__)N)r
r r r- rP r� r6 r� r r� r� rQ r� r� r� r r r r! rB � s �
rB c @ s e Zd ZdS )r9 N)r
r r r r r r! r9 � s r9 )�oidr$ c C s, z
t | W S tk
r& td��Y nX d S )NzCThe provided object identifier has no matching elliptic curve class)�
_OID_TO_CURVE�KeyError� LookupError)r� r r r! �get_curve_for_oid s
�r� )N)N)=r* r1 r� � cryptographyr Zcryptography.hazmat._oidr � cryptography.hazmat.backendsr � cryptography.hazmat.primitivesr r �)cryptography.hazmat.primitives.asymmetricr r r3 �objectr �ABCMetar" r/ r6 Z(EllipticCurvePrivateKeyWithSerializationr: Z'EllipticCurvePublicKeyWithSerializationr r r r r r r r r r r r r r r r
r~ r� r� r� �Dictr, �Type�__annotations__r� r� r- r� rP rB r9 r r r r� r� r r r r! �<module> s�
AF� �� � � X' �