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python38
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python3.8
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nacl
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U v��f� � @ s� d dl mZ d dlZd dlmZ d dlmZ d dlmZ m Z d dl m Z mZ G dd� de�ZG d d � d eje �ZG d d � d eje �ZdS ) � )�OptionalN)�encoding)� exceptions)� PrivateKey� PublicKey)� StringFixer�randomc @ s^ e Zd ZU dZeed< eed< eeeed d�dd��Zeed�dd ��Z eed�d d ��Z d S ) � SignedMessagezc A bytes subclass that holds a messaged that has been signed by a :class:`SigningKey`. � _signature�_message)� signature�message�combined�returnc C s | |�}||_ ||_|S �N)r r )�clsr r r �obj� r �?/opt/alt/python38/lib64/python3.8/site-packages/nacl/signing.py� _from_parts# s zSignedMessage._from_parts�r c C s | j S )zL The signature contained within the :class:`SignedMessage`. )r ��selfr r r r , s zSignedMessage.signaturec C s | j S )zJ The message contained within the :class:`SignedMessage`. )r r r r r r 3 s zSignedMessage.messageN) �__name__� __module__� __qualname__�__doc__�bytes�__annotations__� classmethodr �propertyr r r r r r r s �r c @ s� e Zd ZdZejfeejd�dd�Zed�dd�Z e d�dd �Z e e d �d d �Ze e d �d d�Zdejfeee ejed�dd�Zed�dd�ZdS )� VerifyKeyz� The public key counterpart to an Ed25519 SigningKey for producing digital signatures. :param key: [:class:`bytes`] Serialized Ed25519 public key :param encoder: A class that is able to decode the `key` )�key�encoderc C sJ |� |�}t|t�s t�d��t|�tjjkr@t� dtjj ��|| _ d S )Nz'VerifyKey must be created from 32 bytesz%The key must be exactly %s bytes long) �decode� isinstancer �exc� TypeError�len�nacl�bindingsZcrypto_sign_PUBLICKEYBYTES� ValueError�_key)r r" r# r r r �__init__D s ��zVerifyKey.__init__r c C s | j S r )r, r r r r � __bytes__T s zVerifyKey.__bytes__c C s t t| ��S r ��hashr r r r r �__hash__W s zVerifyKey.__hash__��otherr c C s& t || j�sdS tj�t| �t|��S �NF�r% � __class__r) r* Z sodium_memcmpr �r r3 r r r �__eq__Z s zVerifyKey.__eq__c C s | |k S r r r7 r r r �__ne___ s zVerifyKey.__ne__N)�smessager r# r c C sp |dk rVt |t�s$t�dtjj ��t|�tjjkrFt�dtjj ��||� |� }n |� |�}tj� || j �S )aS Verifies the signature of a signed message, returning the message if it has not been tampered with else raising :class:`~nacl.signing.BadSignatureError`. :param smessage: [:class:`bytes`] Either the original messaged or a signature and message concated together. :param signature: [:class:`bytes`] If an unsigned message is given for smessage then the detached signature must be provided. :param encoder: A class that is able to decode the secret message and signature. :rtype: :class:`bytes` Nz4Verification signature must be created from %d bytesz+The signature must be exactly %d bytes long) r% r r& r' r) r* �crypto_sign_BYTESr( r+ r$ Zcrypto_sign_openr, )r r: r r# r r r �verifyb s ���� zVerifyKey.verifyc C s t j�| j�}t|�S )z� Converts a :class:`~nacl.signing.VerifyKey` to a :class:`~nacl.public.PublicKey` :rtype: :class:`~nacl.public.PublicKey` )r) r* Z$crypto_sign_ed25519_pk_to_curve25519r, �_Curve25519_PublicKey)r Zraw_pkr r r �to_curve25519_public_key� s z"VerifyKey.to_curve25519_public_key)r r r r r � RawEncoderr �Encoderr- r. �intr1 �object�boolr8 r9 r r< r= r> r r r r r! ; s& � � �� )r! c @ s� e Zd ZdZejfeejd�dd�Zed�dd�Z e d�dd �Z e e d �d d �Ze e d �d d�Zed d�dd��Zejfeejed�dd�Zed�dd�ZdS )� SigningKeya� Private key for producing digital signatures using the Ed25519 algorithm. Signing keys are produced from a 32-byte (256-bit) random seed value. This value can be passed into the :class:`~nacl.signing.SigningKey` as a :func:`bytes` whose length is 32. .. warning:: This **must** be protected and remain secret. Anyone who knows the value of your :class:`~nacl.signing.SigningKey` or it's seed can masquerade as you. :param seed: [:class:`bytes`] Random 32-byte value (i.e. private key) :param encoder: A class that is able to decode the seed :ivar: verify_key: [:class:`~nacl.signing.VerifyKey`] The verify (i.e. public) key that corresponds with this signing key. )�seedr# c C sj |� |�}t|t�s t�d��t|�tjjkr@t� dtjj ��tj� |�\}}|| _ || _ t |�| _d S )Nz.SigningKey must be created from a 32 byte seedz&The seed must be exactly %d bytes long)r$ r% r r& r' r( r) r* �crypto_sign_SEEDBYTESr+ Zcrypto_sign_seed_keypair�_seed� _signing_keyr! Z verify_key)r rE r# Z public_keyZ secret_keyr r r r- � s ���zSigningKey.__init__r c C s | j S r )rG r r r r r. � s zSigningKey.__bytes__c C s t t| ��S r r/ r r r r r1 � s zSigningKey.__hash__r2 c C s& t || j�sdS tj�t| �t|��S r4 r5 r7 r r r r8 � s zSigningKey.__eq__c C s | |k S r r r7 r r r r9 � s zSigningKey.__ne__c C s | t tjj�tjd�S )z� Generates a random :class:`~nacl.signing.SigningKey` object. :rtype: :class:`~nacl.signing.SigningKey` )r# )r r) r* rF r r? )r r r r �generate� s �zSigningKey.generate)r r# r c C sT t j�|| j�}t jj}|�|d|� �}|�||d� �}|�|�}t�|||�S )z� Sign a message using this key. :param message: [:class:`bytes`] The data to be signed. :param encoder: A class that is used to encode the signed message. :rtype: :class:`~nacl.signing.SignedMessage` N)r) r* Z crypto_signrH r; �encoder r )r r r# Z raw_signedr; r �signedr r r �sign� s zSigningKey.signc C s | j }tj�|�}t|�S )z� Converts a :class:`~nacl.signing.SigningKey` to a :class:`~nacl.public.PrivateKey` :rtype: :class:`~nacl.public.PrivateKey` )rH r) r* Z$crypto_sign_ed25519_sk_to_curve25519�_Curve25519_PrivateKey)r �skZ raw_privater r r �to_curve25519_private_key� s z$SigningKey.to_curve25519_private_keyN)r r r r r r? r r@ r- r. rA r1 rB rC r8 r9 r rI r rL rM rO r r r r rD � s& �� �� rD )�typingr Z nacl.bindingsr) r r r& Z nacl.publicr rM r r= Z nacl.utilsr r r r Z Encodabler! rD r r r r �<module> s ![
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