← Back
Editing: ecdsa.cpython-312.pyc
� ���gd � �� � d dl mZ d dlmZ d dlmZmZ d dlmZm Z d dl m Z d dl m Z G d� de � Z G d � d e� Z G d � d e� Z G d � de� Z G d� de� Z G d� de� Zy)� )�default_backend)�hashes)�ec�utils)�CryptographyPrivateKey�CryptographyPublicKey)� Algorithm)�DNSKEYc �� � e Zd ZU ej ed< ej Zeed< ej ed< ej ed< e ed< de de dd fd �Z de fd �Zededd fd �� Zy ) � PublicECDSA�key� algorithm� chosen_hash�curve�octets� signature�data�returnNc �0 � |d| j }|| j d }t j t j |d� t j |d� � }| j j ||t j | j � � y )Nr �big) r r �encode_dss_signature�int� from_bytesr �verifyr �ECDSAr )�selfr r �sig_r�sig_s�sigs �C/opt/hc_python/lib/python3.12/site-packages/dns/dnssecalgs/ecdsa.pyr zPublicECDSA.verify sr � ��!�d�k�k�*���$�+�+�-�(���(�(� �N�N�5�%� (�#�.�.���*F� �� ������T�2�8�8�D�,<�,<�#=�>� c �� � | j j � }|j j | j d� |j j | j d� z S )z,Encode a public key per RFC 6605, section 4.r )r �public_numbers�x�to_bytesr �y)r �pns r �encode_key_bytesz PublicECDSA.encode_key_bytes sE � � �X�X� $� $� &���t�t�}�}�T�[�[�%�0�2�4�4�=�=����e�3T�T�Tr! c �r � | j |� |j d| j }|j | j | j dz } | t j | j t j |d� t j |d� �� j t � � �� S )Nr � r )r r$ r& �r ) �!_ensure_algorithm_key_combinationr r r �EllipticCurvePublicNumbersr r r � public_keyr )�clsr �ecdsa_x�ecdsa_ys r � from_dnskeyzPublicECDSA.from_dnskey s� � � �-�-�c�2��'�'�!�c�j�j�)���'�'�#�*�*�s�z�z�A�~�6����-�-��i�i��.�.��%�0��.�.��%�0�� �j� �*�+� � r! )�__name__� __module__� __qualname__r �EllipticCurvePublicKey�__annotations__�key_clsr r � HashAlgorithm� EllipticCurver �bytesr r( � classmethodr r2 � r! r r r s� � � � "� "�"��'�'�G����%�%�%� � � �� �K�?�� ?�U� ?�t� ?�U�%� U� � �f� � � � � r! r c �x � e Zd ZU ej ed< ej ZeZ d de de de de fd�Z e d d�� Z y) � PrivateECDSAr r r � deterministicr c � � t j | j j |�� }| j j ||� }t j |� \ }}t j || j j d�� t j || j j d�� z }|r | j � j ||� |S )z1Sign using a private key per RFC 6605, section 4.)�deterministic_signingr )�length� byteorder) r r � public_clsr r �signr �decode_dss_signaturer r% r r. r ) r r r r@ r � der_signature�dsa_r�dsa_sr s r rF zPrivateECDSA.sign2 s� � � �H�H� �O�O� '� '�}� � � ��� � �d�I�6� � �1�1�-�@� ��u��L�L� �$�/�/�0�0�E� !� � �L�L��t���'=�'=��L� O�P� � � �O�O� � $� $�Y�� 5��r! c �v � | t j | j j t � �� �� S )N)r �backendr+ )r �generate_private_keyrE r r )r/ s r �generatezPrivateECDSA.generateE s/ � ���'�'��n�n�*�*�O�4E�� � r! N)FT)r r? )r3 r4 r5 r �EllipticCurvePrivateKeyr7 r8 r rE r; �boolrF r< rN r= r! r r? r? - se � � � #� #�#��(�(�G� �J� � "� ��� �� � � � �& � � � r! r? c �l � e Zd Zej Z ej � Z e j � Z dZ y)�PublicECDSAP256SHA256� N) r3 r4 r5 r �ECDSAP256SHA256r r �SHA256r r � SECP256R1r r r= r! r rR rR N �, � ��)�)�I� �&�-�-�/�K� �B�L�L�N�E� �Fr! rR c � � e Zd ZeZy)�PrivateECDSAP256SHA256N)r3 r4 r5 rR rE r= r! r rY rY U � � �&�Jr! rY c �l � e Zd Zej Z ej � Z e j � Z dZ y)�PublicECDSAP384SHA384�0 N) r3 r4 r5 r �ECDSAP384SHA384r r �SHA384r r � SECP384R1r r r= r! r r\ r\ Y rW r! r\ c � � e Zd ZeZy)�PrivateECDSAP384SHA384N)r3 r4 r5 r\ rE r= r! r rb rb ` rZ r! rb N)� cryptography.hazmat.backendsr � cryptography.hazmat.primitivesr �)cryptography.hazmat.primitives.asymmetricr r �dns.dnssecalgs.cryptographyr r �dns.dnssectypesr �dns.rdtypes.ANY.DNSKEYr r r? rR rY r\ rb r= r! r �<module>ri sc �� 8� 1� ?� U� %� )� �'� �F �)� �B�K� �'�\� '��K� �'�\� 'r!
Save File
Cancel