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o �)%a9 � @ s� 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+i d8e(�d9e%�d:e(�d;e'�d<e%�d=e$�d>e#�d?e&�d@e"�dAe!�dBe �dCe �dDe �dEe �dFe �dGe�dHe�ee)e*e+dI��Z,ej-e.ej/e f e0dJ< G dKdL� dLe�Z1 d]dMedNefdOdP�Z2 d]dQe3dMedNefdRdS�Z4G dTdU� dUe�Z5G dVdW� dWe�Z6G dXdY� dYe�Z7i ej(e(�ej'e'�ej&e&�ej%e%�ej$e$�ej#e#�ej8e)�ej9e*�ej:e+�ej"e"�ej e �ej!e!�ej e �ej e �eje�ej e �eje�ej e ejei�Z;dZedNej/e fd[d\�Z<dS )^� N)�utils)�ObjectIdentifier)� _get_backend)�_serialization�hashes)�AsymmetricSignatureContext� AsymmetricVerificationContextr c @ s� e Zd Zed�Zed�Zed�Zed�Zed�Zed�Z ed�Z ed�Z ed �Z ed �Z ed �Zed �Zed �Zed�Zed�Zed�Zed�Zed�Zed�ZdS )�EllipticCurveOIDz1.2.840.10045.3.1.1z 1.3.132.0.33z 1.3.132.0.10z1.2.840.10045.3.1.7z 1.3.132.0.34z 1.3.132.0.35z1.3.36.3.3.2.8.1.1.7z1.3.36.3.3.2.8.1.1.11z1.3.36.3.3.2.8.1.1.13z 1.3.132.0.1z 1.3.132.0.15z 1.3.132.0.26z 1.3.132.0.27z 1.3.132.0.16z 1.3.132.0.17z 1.3.132.0.36z 1.3.132.0.37z 1.3.132.0.38z 1.3.132.0.39N)�__name__� __module__� __qualname__r � SECP192R1� SECP224R1� SECP256K1� SECP256R1� SECP384R1� SECP521R1�BRAINPOOLP256R1�BRAINPOOLP384R1�BRAINPOOLP512R1� SECT163K1� SECT163R2� SECT233K1� SECT233R1� SECT283K1� SECT283R1� SECT409K1� SECT409R1� SECT571K1� SECT571R1� r r �N/usr/lib/python3/dist-packages/cryptography/hazmat/primitives/asymmetric/ec.pyr s( r c @ s4 e Zd Zejdefdd��Zejdefdd��ZdS )� EllipticCurve�returnc C � dS )z8 The name of the curve. e.g. secp256r1. Nr ��selfr r r! �name, � zEllipticCurve.namec C r$ �z< Bit size of a secret scalar for the curve. Nr r% r r r! �key_size2 r( zEllipticCurve.key_sizeN) r r r �abc�abstractproperty�strr' �intr* r r r r! r" + s r" )� metaclassc @ s. e Zd Zejdejeje j f fdd��Z dS )� EllipticCurveSignatureAlgorithmr# c C r$ )z@ The digest algorithm used with this signature. Nr r% r r r! � algorithm: r( z)EllipticCurveSignatureAlgorithm.algorithmN) r r r r+ r, �typing�Union� asym_utils� Prehashedr � HashAlgorithmr1 r r r r! r0 9 s �r0 c @ s� e Zd Zejdedefdd��Zejdddddefd d ��Z ejd d d ��Z ej de fd d��Z ej defdd��Zejdedefdd��Zejd dd��Zejdejdejdejdefdd��ZdS ) �EllipticCurvePrivateKey�signature_algorithmr# c C r$ )zN Returns an AsymmetricSignatureContext used for signing data. Nr )r& r8 r r r! �signerD r( z EllipticCurvePrivateKey.signerr1 �ECDH�peer_public_key�EllipticCurvePublicKeyc C r$ )z} Performs a key exchange operation using the provided algorithm with the provided peer's public key. Nr )r& r1 r; r r r! �exchangeM r( z EllipticCurvePrivateKey.exchangec C r$ )zB The EllipticCurvePublicKey for this private key. Nr r% r r r! � public_keyV r( z"EllipticCurvePrivateKey.public_keyc C r$ �z8 The EllipticCurve that this key is on. Nr r% r r r! �curve\ r( z EllipticCurvePrivateKey.curvec C r$ r) r r% r r r! r* b r( z EllipticCurvePrivateKey.key_sizec C r$ )z Signs the data Nr )r& �datar8 r r r! �signh r( z EllipticCurvePrivateKey.sign�EllipticCurvePrivateNumbersc C r$ )z9 Returns an EllipticCurvePrivateNumbers. Nr r% r r r! �private_numbersr r( z'EllipticCurvePrivateKey.private_numbers�encoding�format�encryption_algorithmc C r$ �z6 Returns the key serialized as bytes. Nr )r& rE rF rG r r r! � private_bytesx r( z%EllipticCurvePrivateKey.private_bytesN)r# r< )r# rC )r r r r+ �abstractmethodr0 r r9 �bytesr= r> r, r" r@ r. r* rB rD r �Encoding� PrivateFormat�KeySerializationEncryptionrI r r r r! r7 C sN � ��� � � � ����r7 c @ s� e Zd Zejdededefdd��Zej de fdd��Z ej de fdd ��Z ejdd d ��Zejd ejdejdefdd��Zejdedededdfdd��Zede dedd fdd��ZdS )r< � signaturer8 r# c C r$ )zQ Returns an AsymmetricVerificationContext used for signing data. Nr )r& rO r8 r r r! �verifier� r( z EllipticCurvePublicKey.verifierc C r$ r? r r% r r r! r@ � r( z EllipticCurvePublicKey.curvec C r$ r) r r% r r r! r* � r( z EllipticCurvePublicKey.key_size�EllipticCurvePublicNumbersc C r$ )z8 Returns an EllipticCurvePublicNumbers. Nr r% r r r! �public_numbers� r( z%EllipticCurvePublicKey.public_numbersrE rF c C r$ rH r )r& rE rF r r r! � public_bytes� r( z#EllipticCurvePublicKey.public_bytesrA Nc C r$ )z5 Verifies the signature of the data. Nr )r& rO rA r8 r r r! �verify� r( z EllipticCurvePublicKey.verifyr@ c C s^ t �d|� t|t�std��t|�dkrtd��|d dvr#td��ddlm} |� ||�S )NrA �'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 � load_elliptic_curve_public_bytes)�clsr@ rA rZ r r r! �from_encoded_point� s z)EllipticCurvePublicKey.from_encoded_point)r# rQ )r r r r+ rJ rK r0 r rP r, r" r@ r. r* rR r rL � PublicFormatrS rT � classmethodrc r r r r! r< � sR �� � �� � ��� � ���r< c @ � e Zd ZdZdZdS )r � sect571r1i: N�r r r r' r* r r r r! r � � r c @ rf )r � sect409r1� Nrh r r r r! r � ri r c @ rf )r � sect283r1� Nrh r r r r! r � ri r c @ rf )r � sect233r1�� Nrh r r r r! r � ri r c @ rf )r � sect163r2� Nrh r r r r! r � ri r c @ rf )r � sect571k1i; Nrh r r r r! r � ri r c @ rf )r � sect409k1rk Nrh r r r r! r � ri r c @ rf )r � sect283k1rm Nrh r r r r! r � ri r c @ rf )r � sect233k1ro Nrh r r r r! r � ri r c @ rf )r � sect163k1rq Nrh r r r r! r � ri r c @ rf )r � secp521r1i Nrh r r r r! r ri r c @ rf )r � secp384r1� Nrh r r r r! r ri r c @ rf )r � secp256r1� Nrh r r r r! r ri r c @ rf )r � secp256k1r{ Nrh r r r r! r ri r c @ rf )r � secp224r1�� Nrh r r r r! r ri r c @ rf )r � secp192r1� Nrh r r r r! r ri r c @ rf )�BrainpoolP256R1�brainpoolP256r1r{ Nrh r r r r! r� ri r� c @ rf )�BrainpoolP384R1�brainpoolP384r1ry Nrh r r r r! r� % ri r� c @ rf )�BrainpoolP512R1�brainpoolP512r1i Nrh r r r r! r� * ri r� � prime192v1� prime256v1r r} rz rx rw r| rv ru rt rs rr rp rn rl rj )rg r� r� r� � _CURVE_TYPESc @ s e Zd Zdd� Ze�d�ZdS )�ECDSAc C s || _ d S �N)� _algorithm)r& r1 r r r! �__init__I � zECDSA.__init__r� N)r r r r� r �read_only_propertyr1 r r r r! r� H s r� r@ r# c C � t |�}|�| �S r� )r �#generate_elliptic_curve_private_key)r@ rZ r r r! �generate_private_keyO s r� � private_valuec C sH t |�}t| t�s td��| dkrtd��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 Zdededefdd�Zddefdd �Zdefd d �Z e ded edd fd d��Z e � d�Ze � d�Ze � d�Zdd� Zdd� Zdd� Zdd� ZdS )rQ �x�yr@ c C sD t |t�r t |t�std��t |t�std��|| _|| _|| _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 r� r� )r �"load_elliptic_curve_public_numbers�r& rZ r r r! r> r � 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_pointrA c C s� t |t�s td��tjdtjdd� |�d�rJ|jd d }t |�d| d krFt � |d|d � d �}t � ||d d � d �}| |||�S t d ��t d ��) 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_ )rb r@ rA r� r� r� r r r! rc � s � z-EllipticCurvePublicNumbers.from_encoded_pointr� r� r� c C sF t |t�stS | j|jko"| j|jko"| jj|jjko"| jj|jjkS r� )r\ rQ �NotImplementedr� r� r@ r' r* �r& �otherr r r! �__eq__� s ���z!EllipticCurvePublicNumbers.__eq__c C � | |k S r� r r� r r r! �__ne__� r� 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}>)rF r% r r r! �__repr__� s �z#EllipticCurvePublicNumbers.__repr__r� )r r r r. r" r� r< r> rK r� re rc r r� r@ r� r� r� r� r� r� r r r r! rQ f s& �� � rQ c @ sZ e Zd Zdedefdd�Zddefdd�Ze� d �Z e� d �Z d d � Z d d� Z dd� ZdS )rC r� rR c C s4 t |t�s td��t |t�std��|| _|| _d S )Nz!private_value must be an integer.z>public_numbers must be an EllipticCurvePublicNumbers instance.)r\ r. r] rQ �_private_value�_public_numbers)r& r� rR r r r! r� � s � z$EllipticCurvePrivateNumbers.__init__Nr# c C r� r� )r �#load_elliptic_curve_private_numbersr� r r r! � private_key� r� z'EllipticCurvePrivateNumbers.private_keyr� r� c C s& t |t�stS | j|jko| j|jkS r� )r\ rC r� r� rR r� r r r! r� � s �z"EllipticCurvePrivateNumbers.__eq__c C r� r� r r� r r r! r� � r� z"EllipticCurvePrivateNumbers.__ne__c C s t | j| jf�S r� )r� r� rR r% r r r! r� � s z$EllipticCurvePrivateNumbers.__hash__r� )r r r r. rQ r� r7 r� r r� r� rR r� r� r� r r r r! rC � s � � rC c @ s e Zd ZdS )r: N)r r r r r r r! r: � s r: �oidc C s" zt | W S ty td��w )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� r� )=r+ r2 r� � cryptographyr �cryptography.hazmat._oidr � cryptography.hazmat.backendsr � cryptography.hazmat.primitivesr r �)cryptography.hazmat.primitives.asymmetricr r r4 �objectr �ABCMetar" r0 r7 �(EllipticCurvePrivateKeyWithSerializationr< �'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� rQ rC r: r r r r� r� r r r r! �<module> s AF�������� � � � � ����� ��� ���� �X'�������� � � � � ������
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