OwlCyberSecurity - MANAGER
Edit File: signing.cpython-38.pyc
U �֫[� � @ s� d dl mZmZmZ d dlZd dlmZ d dlmZ d dl m Z m Z d dlmZmZ G dd� de�ZG d d � d ejee�ZG d d � d ejee�ZdS ) � )�absolute_import�division�print_functionN)�encoding)� exceptions)� PrivateKey� PublicKey)� StringFixer�randomc @ s4 e Zd ZdZedd� �Zedd� �Zedd� �ZdS ) � SignedMessagezc A bytes subclass that holds a messaged that has been signed by a :class:`SigningKey`. c C s | |�}||_ ||_|S �N)� _signature�_message)�cls� signature�messageZcombined�obj� r �./usr/lib/python3/dist-packages/nacl/signing.py� _from_parts s zSignedMessage._from_partsc 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 - s zSignedMessage.messageN) �__name__� __module__� __qualname__�__doc__� classmethodr �propertyr r r r r r r s r c @ sV e Zd ZdZejfdd�Zdd� Zdd� Zdd � Z d d � Z d ejfd d�Z dd� Z d S )� 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` c 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� isinstance�bytes�exc� TypeError�len�nacl�bindingsZcrypto_sign_PUBLICKEYBYTES� ValueError�_key)r �key�encoderr r r �__init__> s ��zVerifyKey.__init__c C s | j S r )r( r r r r � __bytes__L s zVerifyKey.__bytes__c C s t t| ��S r ��hashr! r r r r �__hash__O s zVerifyKey.__hash__c C s& t || j�sdS tj�t| �t|��S �NF�r � __class__r% r& Z sodium_memcmpr! �r �otherr r r �__eq__R s zVerifyKey.__eq__c C s | |k S r r r3 r r r �__ne__W s zVerifyKey.__ne__Nc C s* |dk r|| }|� |�}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` N)r r% r& Zcrypto_sign_openr( )r Zsmessager r* r r r �verifyZ 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$crypto_sign_ed25519_pk_to_curve25519r( �_Curve25519_PublicKey)r Zraw_pkr r r �to_curve25519_public_keyr s z"VerifyKey.to_curve25519_public_key) r r r r r � RawEncoderr+ r, r/ r5 r6 r7 r9 r r r r r 5 s r c @ s` e Zd ZdZejfdd�Zdd� Zdd� Zdd � Z d d � Z e d d � �Z ejfdd�Z dd� ZdS )� SigningKeya� Private key for producing digital signatures using the Ed25519 algorithm. Signing keys are produced from a 32-byte (256-bit) random seed value. This value can be passed into the :class:`~nacl.signing.SigningKey` as a :func:`bytes` whose length is 32. .. warning:: This **must** be protected and remain secret. Anyone who knows the value of your :class:`~nacl.signing.SigningKey` or it's seed can masquerade as you. :param seed: [:class:`bytes`] Random 32-byte value (i.e. private key) :param encoder: A class that is able to decode the seed :ivar: verify_key: [:class:`~nacl.signing.VerifyKey`] The verify (i.e. public) key that corresponds with this signing key. c C sj |� |�}t|t�s t�d��t|�tjjkr@t� dtjj ��tj� |�\}}|| _ || _ t |�| _d S )Nz.SigningKey must be created from a 32 byte seedz&The seed must be exactly %d bytes long)r r r! r" r# r$ r% r& �crypto_sign_SEEDBYTESr' Zcrypto_sign_seed_keypair�_seed� _signing_keyr Z verify_key)r Zseedr* Z public_keyZ secret_keyr r r r+ � s ���zSigningKey.__init__c C s | j S r )r= r r r r r, � s zSigningKey.__bytes__c C s t t| ��S r r- r r r r r/ � s zSigningKey.__hash__c C s& t || j�sdS tj�t| �t|��S r0 r1 r3 r r r r5 � s zSigningKey.__eq__c C s | |k S r r r3 r r r r6 � 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& r< r r: )r r r r �generate� s �zSigningKey.generatec 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_signr> �crypto_sign_BYTES�encoder r )r r r* Z raw_signedr@ r Zsignedr 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` )r> r% r& Z$crypto_sign_ed25519_sk_to_curve25519�_Curve25519_PrivateKey)r ZskZ raw_privater r r �to_curve25519_private_key� s z$SigningKey.to_curve25519_private_keyN)r r r r r r: r+ r, r/ r5 r6 r r? rB rD r r r r r; } s r; )Z __future__r r r Z nacl.bindingsr% r r r" Z nacl.publicr rC r r8 Z nacl.utilsr r r! r Z Encodable�objectr r; r r r r �<module> s H