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o g�ev � @ s� d dl Z d dlmZ d dlmZ d dlmZ d dlmZmZ d dl m Z m Z d dl m Z ded e jej fd d �Zded e jej fd d �Ze jejejejejejf Ze je je jf Z G dd� dej �Z G dd� de �Z dS )� N)�utils)�x509)� _get_backend)�hashes� serialization)�ec�rsa)�_check_byteslike�data�returnc C � t d �}|�| �S �N)r �load_pem_pkcs7_certificates�r �backend� r �T/usr/lib/python3/dist-packages/cryptography/hazmat/primitives/serialization/pkcs7.pyr � r c C r r )r �load_der_pkcs7_certificatesr r r r r r r c @ s$ e Zd ZdZdZdZdZdZdZdS )� PKCS7OptionszAdd text/plain MIME typez5Don't translate input data into canonical MIME formatz'Don't embed data in the PKCS7 structurez Don't embed SMIME capabilitiesz#Don't embed authenticatedAttributesz Don't embed signer certificateN) �__name__� __module__� __qualname__�Text�Binary�DetachedSignature�NoCapabilities� NoAttributes�NoCertsr r r r r & s r c @ s� e Zd Zdg g fdd�Zdedd fdd�Zdejd ed e dd fd d �Z dejdd fd d�Z dde j deje defdd�ZdS )�PKCS7SignatureBuilderNc C s || _ || _|| _d S r )�_data�_signers�_additional_certs)�selfr �signers�additional_certsr r r �__init__0 s z PKCS7SignatureBuilder.__init__r r c C s( t d|� | jd urtd��t|| j�S )Nr zdata may only be set once)r r � ValueErrorr r! )r# r r r r �set_data5 s z PKCS7SignatureBuilder.set_data� certificate� private_key�hash_algorithmc C sn t |tjtjtjtjtjf�std��t |tj �s td��t |t j t j f�s*td��t| j| j|||fg �S )NzLhash_algorithm must be one of hashes.SHA1, SHA224, SHA256, SHA384, or SHA512�&certificate must be a x509.Certificatez.Only RSA & EC keys are supported at this time.)� isinstancer �SHA1�SHA224�SHA256�SHA384�SHA512� TypeErrorr � Certificater � RSAPrivateKeyr �EllipticCurvePrivateKeyr r r! )r# r) r* r+ r r r � add_signer< s, �� � ��z PKCS7SignatureBuilder.add_signerc C s, t |tj�s td��t| j| j| j|g �S )Nr, )r- r r4 r3 r r r! r" )r# r) r r r �add_certificate] s �z%PKCS7SignatureBuilder.add_certificate�encoding�optionsc C s� t | j�dkr td��| jd u rtd��t|�}tdd� |D ��s%td��|tjjtjj tjj fvr6td��t j |v rDt j |vrDtd��t j |v rW|tjj tjjfv rWtd ��t j|v ret j|v retd ��t|�}|�| ||�S ) Nr z Must have at least one signerzYou must add data to signc s s � | ]}t |t�V qd S r )r- r )�.0�xr r r � <genexpr>r s � z-PKCS7SignatureBuilder.sign.<locals>.<genexpr>z*options must be from the PKCS7Options enumz1Must be PEM, DER, or SMIME from the Encoding enumzAWhen passing the Text option you must also pass DetachedSignaturez9The Text option is only available for SMIME serializationzFNoAttributes is a superset of NoCapabilities. Do not pass both values.)�lenr! r' r �list�allr �Encoding�PEM�DER�SMIMEr r r r r r � pkcs7_sign)r# r9 r: r r r r �signg sD �� � �� �zPKCS7SignatureBuilder.signr )r r r r& �bytesr( r r4 �_ALLOWED_PRIVATE_KEY_TYPES�_ALLOWED_PKCS7_HASH_TYPESr7 r8 r rA �typing�Iterabler rF r r r r r / s2 ��� �!� �����r )!rJ � cryptographyr r � cryptography.hazmat.backendsr � cryptography.hazmat.primitivesr r �)cryptography.hazmat.primitives.asymmetricr r �cryptography.utilsr rG �Listr4 r r �Unionr. r/ r0 r1 r2 rI r5 r6 rH �Enumr �objectr r r r r �<module> s, �� �
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