| Server IP : 209.38.156.173 / Your IP : 216.73.216.122 [ Web Server : Apache/2.4.52 (Ubuntu) System : Linux lakekumayuhotel 5.15.0-136-generic #147-Ubuntu SMP Sat Mar 15 15:53:30 UTC 2025 x86_64 User : root ( 0) PHP Version : 8.1.2-1ubuntu2.22 Disable Function : NONE Domains : 2 Domains MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /usr/lib/python3/dist-packages/cryptography/hazmat/backends/openssl/__pycache__/ |
Upload File : |
o
�)%a;4 � @ s� d dl mZ d dlmZmZmZ d dlmZmZm Z d dl
m Z m Z d dl
mZmZmZ dejfdd�Zd d
� Zd d � Zd
d� Zdd� Zdd� ZG dd� de�ZG dd� de�ZG dd� dej�ZG dd� dej �Z dS ) � )�utils)�InvalidSignature�UnsupportedAlgorithm�_Reasons)� _calculate_digest_and_algorithm�_check_not_prehashed� _warn_sign_verify_deprecated)�hashes�
serialization)�AsymmetricSignatureContext� AsymmetricVerificationContext�ec�signature_algorithmc C s t | tj�s tdtj��d S )Nz/Unsupported elliptic curve signature algorithm.)�
isinstancer
�ECDSAr r � UNSUPPORTED_PUBLIC_KEY_ALGORITHM)r � r �I/usr/lib/python3/dist-packages/cryptography/hazmat/backends/openssl/ec.py�_check_signature_algorithm s ��r c C s� | j �|�}| �|| jjk� | j �|�}|| j jkr td��| j js/| j � |�dkr/td��| j �
|�}| �|| jjk� | j� |�� d�}|S )Nz;ECDSA keys with unnamed curves are unsupported at this timer �ascii)
�_lib�EC_KEY_get0_group�openssl_assert�_ffi�NULL�EC_GROUP_get_curve_name� NID_undef�NotImplementedError�CRYPTOGRAPHY_IS_LIBRESSL�EC_GROUP_get_asn1_flag�
OBJ_nid2sn�string�decode)�backend�ec_key�group�nid�
curve_name�snr r r �_ec_key_curve_sn# s$ ���� r) c C s | j �|| j j� dS )z�
Set the named curve flag on the EC_KEY. This causes OpenSSL to
serialize EC keys along with their curve OID which makes
deserialization easier.
N)r �EC_KEY_set_asn1_flag�OPENSSL_EC_NAMED_CURVE)r# �ec_cdatar r r �_mark_asn1_named_ec_curveA s �r- c C s0 zt j| � W S ty td�|�tj��w )Nz${} is not a supported elliptic curve)r
� _CURVE_TYPES�KeyErrorr �formatr �UNSUPPORTED_ELLIPTIC_CURVE)r# r( r r r �_sn_to_elliptic_curveM s ��r2 c C sz | j �|j�}| �|dk� | j�d|�}| j�dd�}| j �d|t|�|||j�}| �|dk� | j�|�d |d � S )Nr zunsigned char[]zunsigned int[]� ) r �
ECDSA_size�_ec_keyr r �new�
ECDSA_sign�len�buffer)r# � private_key�data�max_size�sigbuf�
siglen_ptr�resr r r �_ecdsa_sig_signW s �r@ c C s8 | j �d|t|�|t|�|j�}|dkr| �� t�d S )Nr r3 )r � ECDSA_verifyr8 r5 �_consume_errorsr )r# �
public_key� signaturer; r? r r r �_ecdsa_sig_verifyd s ��rE c @ sB e Zd Zdejdejfdd�Zdeddfdd �Z defd
d �Z
dS ) �_ECDSASignatureContextr: � algorithmc C s || _ || _t�||�| _d S �N)�_backend� _private_keyr �Hash�_digest)�selfr# r: rG r r r �__init__n s z _ECDSASignatureContext.__init__r; �returnNc C � | j �|� d S rH �rL �update�rM r; r r r rR x � z _ECDSASignatureContext.updatec C s | j �� }t| j| j|�S rH )rL �finalizer@ rI rJ �rM �digestr r r rU { s
z _ECDSASignatureContext.finalize) �__name__�
__module__� __qualname__r
�EllipticCurvePrivateKeyr �
HashAlgorithmrN �bytesrR rU r r r r rF m s �
�
rF c @ sB e Zd Zdejdedejfdd�Zdeddfd d
�Z d
d d �Z
dS )�_ECDSAVerificationContextrC rD rG c C s$ || _ || _|| _t�||�| _d S rH )rI � _public_key�
_signaturer rK rL )rM r# rC rD rG r r r rN � s z"_ECDSAVerificationContext.__init__r; rO Nc C rP rH rQ rS r r r rR � rT z _ECDSAVerificationContext.updatec C s" | j �� }t| j| j| j|� d S rH )rL rU rE rI r_ r` rV r r r �verify� s
�z _ECDSAVerificationContext.verify)rO N) rX rY rZ r
�EllipticCurvePublicKeyr] r r\ rN rR ra r r r r r^ � s ��
� r^ c @ s� e Zd Zdd� Ze�d�Zedefdd��Z de
j de fdd �Z
d
e
jd e
jdefd d
�Zde
jfdd�Zde
jfdd�Zdejdejdejdefdd�Zdede
j defdd�ZdS )�_EllipticCurvePrivateKeyc C �6 || _ || _|| _t||�}t||�| _t||� d S rH �rI r5 � _evp_pkeyr) r2 �_curver- �rM r# � ec_key_cdata�evp_pkeyr( r r r rN � �
z!_EllipticCurvePrivateKey.__init__rg rO c C � | j jS rH ��curve�key_size�rM r r r ro � � z!_EllipticCurvePrivateKey.key_sizer c C s: t � t|� t|j� t|jtj�sJ �t| j| |j�S rH ) r r r rG r r r\ rF rI )rM r r r r �signer� s
�z _EllipticCurvePrivateKey.signerrG �peer_public_keyc C s� | j �|| j�stdtj��|jj| jjkrtd��| j j� | j
�}| j j� |�d d }| j � |dk� | j j
�d|�}| j j�|j
�}| j j�|||| j
| j j
j�}| j � |dk� | j j
�|�d |� S )Nz1This backend does not support the ECDH algorithm.z2peer_public_key and self are not on the same curve� � r z uint8_t[])rI �+elliptic_curve_exchange_algorithm_supportedrn r r � UNSUPPORTED_EXCHANGE_ALGORITHM�name�
ValueErrorr r r5 �EC_GROUP_get_degreer r r6 �EC_KEY_get0_public_key�ECDH_compute_keyr r9 )rM rG rs r% �z_len�z_buf�peer_key�rr r r �exchange� s0 ������z!_EllipticCurvePrivateKey.exchangec C s� | j j�| j�}| j �|| j jjk� | j j�|�}| j �|�}| j j� | j�}| j �|| j jjk� | j j�
||�}| j �|dk� | j � |�}t | j ||�S )Nr3 )
rI r r r5 r r r r �_ec_key_new_by_curve_nidr{ �EC_KEY_set_public_key�_ec_cdata_to_evp_pkey�_EllipticCurvePublicKey)rM r% � curve_nid�
public_ec_key�pointr? rj r r r rC � s z#_EllipticCurvePrivateKey.public_keyc C s2 | j j�| j�}| j �|�}tj|| �� �� d�S )N)�
private_value�public_numbers) rI r �EC_KEY_get0_private_keyr5 �
_bn_to_intr
�EllipticCurvePrivateNumbersrC r� )rM �bnr� r r r �private_numbers� s
�z(_EllipticCurvePrivateKey.private_numbers�encodingr0 �encryption_algorithmc C s | j �|||| | j| j�S rH )rI �_private_key_bytesrf r5 )rM r� r0 r� r r r �
private_bytes� s �z&_EllipticCurvePrivateKey.private_bytesr; c C s* t |� t| j||j�\}}t| j| |�S rH )r r rI �
_algorithmr@ )rM r; r rG r r r �sign� s �z _EllipticCurvePrivateKey.signN)rX rY rZ rN r �read_only_propertyrn �property�intro r
� EllipticCurveSignatureAlgorithmr rr �ECDHrb r] r� rC r� r� r
�Encoding�
PrivateFormat�KeySerializationEncryptionr� r� r r r r rc � sF
�
� ��
� ���
����rc c @ s� e Zd Zdd� Ze�d�Zedefdd��Z de
de j de
fd d
�Zde jfd d �Zd
ejde
fdd�Zdejd
ejde
fdd�Zde
de
de j ddfdd�ZdS )r� c C rd rH re rh r r r rN rk z _EllipticCurvePublicKey.__init__rg rO c C rl rH rm rp r r r ro rq z _EllipticCurvePublicKey.key_sizerD r c C sH t � t�d|� t|� t|j� t|jtj�sJ �t | j
| ||j�S )NrD ) r r � _check_bytesr r rG r r r\ r^ rI )rM rD r r r r �verifier s
�z _EllipticCurvePublicKey.verifierc
C s� | j �| j�\}}| j j�| j�}| j �|| j jjk� | j �� �2}| j j� |�}| j j� |�}||||||�}| j �|dk� | j �
|�}| j �
|�} W d � n1 sVw Y t j || | j
d�S )Nr3 )�x�yrn )rI � _ec_key_determine_group_get_funcr5 r r{ r r r � _tmp_bn_ctx�
BN_CTX_getr� r
�EllipticCurvePublicNumbersrg )
rM �get_funcr% r� �bn_ctx�bn_x�bn_yr? r� r� r r r r� * s � �
z&_EllipticCurvePublicKey.public_numbersr0 c C s$ |t jju r | jjj}n
|t jju sJ �| jjj}| jj�| j �}| j�
|| jj j k� | jj�
| j �}| j�
|| jj j k� | j�� �;}| jj�|||| jj j d|�}| j�
|dk� | jj �d|�}| jj�||||||�}| j�
||k� W d � n1 s�w Y | jj �|�d d � S )Nr zchar[])r
� PublicFormat�CompressedPointrI r �POINT_CONVERSION_COMPRESSED�UncompressedPoint� POINT_CONVERSION_UNCOMPRESSEDr r5 r r r r{ r� �EC_POINT_point2octr6 r9 ) rM r0 �
conversionr% r� r� �buflen�bufr? r r r �
_encode_point= s(
� � � z%_EllipticCurvePublicKey._encode_pointr� c C sl |t jju s|t jju s|t jju r+|t jjus"|t jjt jjfvr&td��| �|�S | j� ||| | j
d �S )NzKX962 encoding must be used with CompressedPoint or UncompressedPoint format) r
r� �X962r� r� r� ry r� rI �_public_key_bytesrf )rM r� r0 r r r � public_bytesU s"
�
�
���
�z$_EllipticCurvePublicKey.public_bytesr; Nc C s0 t |� t| j||j�\}}t| j| ||� d S rH )r r rI r� rE )rM rD r; r rG r r r ra n s �z _EllipticCurvePublicKey.verify)rX rY rZ rN r r� rn r� r� ro r] r
r� r r� r� r� r
r� r� r� r� ra r r r r r�
s<
��
���
�����r� N) � cryptographyr �cryptography.exceptionsr r r �*cryptography.hazmat.backends.openssl.utilsr r r � cryptography.hazmat.primitivesr r
�)cryptography.hazmat.primitives.asymmetricr r r
r� r r) r- r2 r@ rE rF r^ r[ rc rb r� r r r r �<module> s"
�
r