o

��hL/�@spdd
lm
Z
mZ
ddlZddlmZ
ddlmZ
ddlm	Z	m
Z
mZ
Gdd�deje
�Z
Gdd	�d	eje
�ZdS)
�)�ClassVar�OptionalN)
�encoding)
�
exceptions)�EncryptedMessage�StringFixer�randomc	@s�eZ
dZUd
ZejjZee	e
d<ejjZee	e
d<ejj
Zee	e
d<ejjZee	e
d<ejf
dedejfdd	�Zd
efdd�Zd
ejfdedeedejd
efdd�Zd
ejfdedeedejd
efdd�Zd
S)�	SecretBoxuS
    The SecretBox class encrypts and decrypts messages using the given secret
    key.

    The ciphertexts generated by :class:`~nacl.secret.Secretbox` include a 16
    byte authenticator which is checked as part of the decryption. An invalid
    authenticator will cause the decrypt function to raise an exception. The
    authenticator is not a signature. Once you've decrypted the message you've
    demonstrated the ability to create arbitrary valid message, so messages you
    send are repudiable. For non-repudiable messages, sign them after
    encryption.

    Encryption is done using `XSalsa20-Poly1305`_, and there are no practical
    limits on the number or size of messages (up to 2⁶⁴ messages, each up to 2⁶⁴
    bytes).

    .. _XSalsa20-Poly1305: https://doc.libsodium.org/secret-key_cryptography/secretbox#algorithm-details

    :param key: The secret key used to encrypt and decrypt messages
    :param encoder: The encoder class used to decode the given key

    :cvar KEY_SIZE: The size that the key is required to be.
    :cvar NONCE_SIZE: The size that the nonce is required to be.
    :cvar MACBYTES: The size of the authentication MAC tag in bytes.
    :cvar MESSAGEBYTES_MAX: The maximum size of a message which can be
                            safely encrypted with a single key/nonce
                            pair.
    �KEY_SIZE�
NONCE_SIZE�MACBYTES�MESSAGEBYTES_MAX�key�encodercC�F|�|
�
}
t
|
t�st�d
�
�
t|
�
|jkrt�d|j�
�
|
|_dS)Nz'SecretBox must be created from 32 bytes�%The key must be exactly %s bytes long�	�decode�
isinstance�bytes�exc�	TypeError�lenr
�
ValueError�_key��selfrr�r�A/usr/local/CyberPanel/lib/python3.10/site-packages/nacl/secret.py�__init__;s






�
zSecretBox.__init__�returnc


C�|jS�
N�
r�
rrrr�	__bytes__I�
zSecretBox.__bytes__N�	plaintext�noncecCsn|d
ur	t|j
�
}t|�
|j
krt�d|j
�
�
tj�|
||j�}|�	|�
}|�	|�
}t
�|||�	||�
�S)aL
        Encrypts the plaintext message using the given `nonce` (or generates
        one randomly if omitted) and returns the ciphertext encoded with the
        encoder.

        .. warning:: It is **VITALLY** important that the nonce is a nonce,
            i.e. it is a number used only once for any given key. If you fail
            to do this, you compromise the privacy of the messages encrypted.
            Give your nonces a different prefix, or have one side use an odd
            counter and one an even counter. Just make sure they are different.

        :param plaintext: [:class:`bytes`] The plaintext message to encrypt
        :param nonce: [:class:`bytes`] The nonce to use in the encryption
        :param encoder: The encoder to use to encode the ciphertext
        :rtype: [:class:`nacl.utils.EncryptedMessage`]
        N�'The nonce must be exactly %s bytes long)rrrrr�nacl�bindings�crypto_secretboxr�encoder�_from_parts)rr'r(r�
ciphertext�
encoded_nonce�encoded_ciphertextrrr�encryptLs 



�
�





�zSecretBox.encryptr/cCsb|�|
�
}
|d
ur|
d
|j
�}|
|j
d
�}
t|�
|j
kr&t�d|j
�
�
tj�|
||j�}|S�a�

        Decrypts the ciphertext using the `nonce` (explicitly, when passed as a
        parameter or implicitly, when omitted, as part of the ciphertext) and
        returns the plaintext message.

        :param ciphertext: [:class:`bytes`] The encrypted message to decrypt
        :param nonce: [:class:`bytes`] The nonce used when encrypting the
            ciphertext
        :param encoder: The encoder used to decode the ciphertext.
        :rtype: [:class:`bytes`]
        Nr))	rrrrrr*r+�crypto_secretbox_openr)rr/r(rr'rrr�decryptws



�
�zSecretBox.decrypt)�__name__�
__module__�__qualname__�__doc__r*r+�crypto_secretbox_KEYBYTESr
r�int�__annotations__�crypto_secretbox_NONCEBYTESr�crypto_secretbox_MACBYTESr�!crypto_secretbox_MESSAGEBYTES_MAXr
r�
RawEncoderr�Encoderrr%rrr2r5rrrrr	sL



�
��
�

�
����
�.
�����r	c@s�eZ
dZd
ZejjZejjZ	ejj
ZejjZ
ejf
dedejfdd�Zdefdd�Zd	d
ejfdeded
eedejdef
dd�Zd	d
ejfdeded
eedejdef
dd�Zd
S)�Aeadu�
    The AEAD class encrypts and decrypts messages using the given secret key.

    Unlike :class:`~nacl.secret.SecretBox`, AEAD supports authenticating
    non-confidential data received alongside the message, such as a length
    or type tag.

    Like :class:`~nacl.secret.Secretbox`, this class provides authenticated
    encryption. An inauthentic message will cause the decrypt function to raise
    an exception.

    Likewise, the authenticator should not be mistaken for a (public-key)
    signature: recipients (with the ability to decrypt messages) are capable of
    creating arbitrary valid message; in particular, this means AEAD messages
    are repudiable. For non-repudiable messages, sign them after encryption.

    The cryptosystem used is `XChacha20-Poly1305`_ as specified for
    `standardization`_. There are `no practical limits`_ to how much can safely
    be encrypted under a given key (up to 2⁶⁴ messages each containing up
    to 2⁶⁴ bytes).

    .. _standardization: https://datatracker.ietf.org/doc/html/draft-irtf-cfrg-xchacha
    .. _XChacha20-Poly1305: https://doc.libsodium.org/secret-key_cryptography/aead#xchacha-20-poly1305
    .. _no practical limits: https://doc.libsodium.org/secret-key_cryptography/aead#limitations

    :param key: The secret key used to encrypt and decrypt messages
    :param encoder: The encoder class used to decode the given key

    :cvar KEY_SIZE: The size that the key is required to be.
    :cvar NONCE_SIZE: The size that the nonce is required to be.
    :cvar MACBYTES: The size of the authentication MAC tag in bytes.
    :cvar MESSAGEBYTES_MAX: The maximum size of a message which can be
                            safely encrypted with a single key/nonce
                            pair.
    rrcCr)Nz"AEAD must be created from 32 bytesrrrrrrr�s






�
z
Aead.__init__r c


Cr!r"r#r$rrrr%�r&zAead.__bytes__�Nr'�aadr(cCsp|d
ur	t|j
�
}t|�
|j
krt�d|j
�
�
tj�|
|||j�}|�	|�
}|�	|�
}t
�|||�	||�
�S)a@
        Encrypts the plaintext message using the given `nonce` (or generates
        one randomly if omitted) and returns the ciphertext encoded with the
        encoder.

        .. warning:: It is vitally important for :param nonce: to be unique.
            By default, it is generated randomly; [:class:`Aead`] uses XChacha20
            for extended (192b) nonce size, so the risk of reusing random nonces
            is negligible.  It is *strongly recommended* to keep this behaviour,
            as nonce reuse will compromise the privacy of encrypted messages.
            Should implicit nonces be inadequate for your application, the
            second best option is using split counters; e.g. if sending messages
            encrypted under a shared key between 2 users, each user can use the
            number of messages it sent so far, prefixed or suffixed with a 1bit
            user id.  Note that the counter must **never** be rolled back (due
            to overflow, on-disk state being rolled back to an earlier backup,
            ...)

        :param plaintext: [:class:`bytes`] The plaintext message to encrypt
        :param nonce: [:class:`bytes`] The nonce to use in the encryption
        :param encoder: The encoder to use to encode the ciphertext
        :rtype: [:class:`nacl.utils.EncryptedMessage`]
        Nr))rrrrrr*r+�*crypto_aead_xchacha20poly1305_ietf_encryptrr-rr.)rr'rDr(rr/r0r1rrrr2�s 



�

�





�zAead.encryptr/cCsd|�|
�
}
|d
ur|
d
|j
�}|
|j
d
�}
t|�
|j
kr&t�d|j
�
�
tj�|
|||j�}|Sr3)	rrrrrr*r+�*crypto_aead_xchacha20poly1305_ietf_decryptr)rr/rDr(rr'rrrr5
s



�

�zAead.decrypt)r6r7r8r9r*r+�+crypto_aead_xchacha20poly1305_ietf_KEYBYTESr
�,crypto_aead_xchacha20poly1305_ietf_NPUBBYTESr�)crypto_aead_xchacha20poly1305_ietf_ABYTESr�3crypto_aead_xchacha20poly1305_ietf_MESSAGEBYTES_MAXr
rr@rrArr%rrr2r5rrrrrB�sT
$

���
�

�����
�6

������rB)�typingrr�
nacl.bindingsr*rrr�
nacl.utilsrrr�	Encodabler	rBrrrr�<module>
s