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a n�hf( � @ sv U d dl mZ d dlmZ d dlmZmZ d dlm Z e� � Z e e d< e�� d Ze e d< e�� Ze e d< e�� Ze e d < e�� Ze e d < e�� Ze e d < eeef d �d d�Zeeeef d�dd�Zeeed�dd�Zeeed�dd�Zeed�dd�Z eed�d d �Z eed�d d �Z eed�d d!�Z G d"d#� d#�Z e ed$d%�d&d'�Z!e eed(�d)d*�Z"e eee#d+�d,d-�Z$d$S ).� )�Tuple)� exceptions)�ffi�lib)�ensure�crypto_sign_BYTES� �crypto_sign_SEEDBYTES�crypto_sign_PUBLICKEYBYTES�crypto_sign_SECRETKEYBYTES� crypto_sign_curve25519_BYTES� crypto_sign_ed25519ph_STATEBYTES��returnc C s` t �dt�} t �dt�}t�| |�}t|dkdtjd� t � | t�dd� t � |t�dd� fS )zu Returns a randomly generated public key and secret key. :rtype: (bytes(public_key), bytes(secret_key)) �unsigned char[]r �Unexpected library error�ZraisingN) r �newr r r �crypto_sign_keypairr �exc� RuntimeError�buffer)�pk�sk�rc� r ��/root/rpmbuild/BUILDROOT/imh-python39-modules-3.9.7-92.el8.x86_64/opt/imh-python/lib/python3.9/site-packages/nacl/bindings/crypto_sign.pyr s �r )�seedr c C sx t | �tkrt�d��t�dt�}t�dt�}t� ||| �}t |dkdtj d� t� |t�dd� t� |t�dd� fS )z� Computes and returns the public key and secret key using the seed ``seed``. :param seed: bytes :rtype: (bytes(public_key), bytes(secret_key)) z Invalid seedr r r r N) �lenr r � ValueErrorr r r r r �crypto_sign_seed_keypairr r r )r r r r r r r r 2 s �r )�messager r c C s` t �dt| �t �}t �d�}t�||| t| �|�}t|dkdtjd� t � ||d �dd� S )z� Signs the message ``message`` using the secret key ``sk`` and returns the signed message. :param message: bytes :param sk: bytes :rtype: bytes r �unsigned long long *r r r N) r r r r r � crypto_signr r r r )r! r �signedZ signed_lenr r r r r# H s r# )r$ r r c C sV t �dt| ��}t �d�}t�||| t| �|�dkr>t�d��t �||d �dd� S )z� Verifies the signature of the signed message ``signed`` using the public key ``pk`` and returns the unsigned message. :param signed: bytes :param pk: bytes :rtype: bytes r r" r � Signature was forged or corruptN)r r r r �crypto_sign_openr �BadSignatureErrorr )r$ r r! Z message_lenr r r r& Z s �� r& )�public_key_bytesr c C sZ t | �tkrt�d��t}t�d|�}t�|| �}t |dkdtj d� t� ||�dd� S )a Converts a public Ed25519 key (encoded as bytes ``public_key_bytes``) to a public Curve25519 key as bytes. Raises a ValueError if ``public_key_bytes`` is not of length ``crypto_sign_PUBLICKEYBYTES`` :param public_key_bytes: bytes :rtype: bytes zInvalid curve public keyr r r r N) r r r r r r r r �$crypto_sign_ed25519_pk_to_curve25519r r r )r( Zcurve_public_key_lenZcurve_public_keyr r r r r) o s �r) )�secret_key_bytesr c C sZ t | �tkrt�d��t}t�d|�}t�|| �}t |dkdtj d� t� ||�dd� S )a Converts a secret Ed25519 key (encoded as bytes ``secret_key_bytes``) to a secret Curve25519 key as bytes. Raises a ValueError if ``secret_key_bytes``is not of length ``crypto_sign_SECRETKEYBYTES`` :param secret_key_bytes: bytes :rtype: bytes zInvalid curve secret keyr r r r N) r r r r r r r r �$crypto_sign_ed25519_sk_to_curve25519r r r )r* Zcurve_secret_key_lenZcurve_secret_keyr r r r r+ � s �r+ c C s" t | �tkrt�d��| td� S )a Extract the public Ed25519 key from a secret Ed25519 key (encoded as bytes ``secret_key_bytes``). Raises a ValueError if ``secret_key_bytes``is not of length ``crypto_sign_SECRETKEYBYTES`` :param secret_key_bytes: bytes :rtype: bytes �Invalid secret keyN�r r r r r �r* r r r � crypto_sign_ed25519_sk_to_pk� s r/ c C s" t | �tkrt�d��| dt� S )z� Extract the seed from a secret Ed25519 key (encoded as bytes ``secret_key_bytes``). Raises a ValueError if ``secret_key_bytes``is not of length ``crypto_sign_SECRETKEYBYTES`` :param secret_key_bytes: bytes :rtype: bytes r, Nr- r. r r r � crypto_sign_ed25519_sk_to_seed� s r0 c @ s$ e Zd ZdZdgZdd�dd�ZdS )�crypto_sign_ed25519ph_statezO State object wrapping the sha-512 state used in ed25519ph computation �stateNr c C s2 t �dt�| _t�| j�}t|dkdtjd� d S )Nr r r r ) r r r r2 r Zcrypto_sign_ed25519ph_initr r r )�selfr r r r �__init__� s � z$crypto_sign_ed25519ph_state.__init__)�__name__� __module__� __qualname__�__doc__� __slots__r4 r r r r r1 � s r1 N)�edph�pmsgr c C sX t t| t�dtjd� t t|t�dtjd� t�| j|t |��}t |dkdtj d� dS )z� Update the hash state wrapped in edph :param edph: the ed25519ph state being updated :type edph: crypto_sign_ed25519ph_state :param pmsg: the partial message :type pmsg: bytes :rtype: None �/edph parameter must be a ed25519ph_state objectr z%pmsg parameter must be a bytes objectr r N) r � isinstancer1 r � TypeError�bytesr � crypto_sign_ed25519ph_updater2 r r )r: r; r r r r r@ � s ��r@ )r: r r c C s� t t| t�dtjd� t t|t�dtjd� t t|�tkd�t�tjd� t � dt �}t � | j|t j|�}t |dkdtjd� t �|t �dd� S ) aR Create a signature for the data hashed in edph using the secret key sk :param edph: the ed25519ph state for the data being signed :type edph: crypto_sign_ed25519ph_state :param sk: the ed25519 secret part of the signing key :type sk: bytes :return: ed25519ph signature :rtype: bytes r< r z+secret key parameter must be a bytes objectz secret key must be {} bytes longr r r N)r r= r1 r r> r? r r �formatr r r r �"crypto_sign_ed25519ph_final_creater2 ZNULLr r )r: r � signaturer r r r rB � s. �� �� �rB )r: rC r r c C s� t t| t�dtjd� t t|t�dtjd� t t|�tkd�t�tjd� t t|t�dtjd� t t|�t kd�t �tjd� t � | j ||�}|dkr�t� d��d S ) a� Verify a prehashed signature using the public key pk :param edph: the ed25519ph state for the data being verified :type edph: crypto_sign_ed25519ph_state :param signature: the signature being verified :type signature: bytes :param pk: the ed25519 public part of the signing key :type pk: bytes :return: True if the signature is valid :rtype: boolean :raises exc.BadSignatureError: if the signature is not valid r< r z*signature parameter must be a bytes objectz signature must be {} bytes longz+public key parameter must be a bytes objectz public key must be {} bytes longr r% T)r r= r1 r r> r? r r rA r r �"crypto_sign_ed25519ph_final_verifyr2 r' )r: rC r r r r r rD s> �� �� �� rD )%�typingr Znaclr r Z nacl._sodiumr r Znacl.exceptionsr Zcrypto_sign_bytesr �int�__annotations__Zcrypto_sign_secretkeybytesr Zcrypto_sign_publickeybytesr r Zcrypto_box_secretkeybytesr Z crypto_sign_ed25519ph_statebytesr r? r r r# r& r) r+ r/ r0 r1 r@ rB �boolrD r r r r �<module> s6 � � *�
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