o
    -&%ao  ã                   @   sT   d dl mZ d dlmZ d dlmZmZ dZdZG dd„ deƒZ	G dd	„ d	eƒZ
d
S )é    )Ú
exceptions)Úserialization)ÚEd448PrivateKeyÚEd448PublicKeyé9   ér   c                   @   sR   e Zd Zdd„ Zdejdejdefdd„Zdefdd	„Z	d
ededdfdd„Z
dS )Ú_Ed448PublicKeyc                 C   ó   || _ || _d S ©N©Ú_backendÚ	_evp_pkey©ÚselfÚbackendÚevp_pkey© r   úL/usr/lib/python3/dist-packages/cryptography/hazmat/backends/openssl/ed448.pyÚ__init__   ó   
z_Ed448PublicKey.__init__ÚencodingÚformatÚreturnc                 C   sV   |t jju s|t jju r |t jjus|t jjurtdƒ‚|  ¡ S | j ||| | jd ¡S )Nz3When using Raw both encoding and format must be Raw)	r   ÚEncodingÚRawÚPublicFormatÚ
ValueErrorÚ_raw_public_bytesr   Ú_public_key_bytesr   )r   r   r   r   r   r   Úpublic_bytes   s   ÿÿz_Ed448PublicKey.public_bytesc                 C   óp   | j j dt¡}| j j dt¡}| j j | j||¡}| j  |dk¡ | j  |d tk¡ | j j |t¡d d … S ©Nzunsigned char []úsize_t *é   r   )	r   Ú_ffiÚnewÚ_ED448_KEY_SIZEÚ_libÚEVP_PKEY_get_raw_public_keyr   Úopenssl_assertÚbuffer©r   ÚbufÚbuflenÚresr   r   r   r   -   ó   ÿz!_Ed448PublicKey._raw_public_bytesÚ	signatureÚdataNc                 C   s¬   | j j ¡ }| j  || j jjk¡ | j j || j jj¡}| j j || j jj| j jj| j jj| j	¡}| j  |dk¡ | j j 
||t|ƒ|t|ƒ¡}|dkrT| j  ¡  tj‚d S )Nr#   )r   r'   ÚEVP_MD_CTX_newr)   r$   ÚNULLÚgcÚEVP_MD_CTX_freeÚEVP_DigestVerifyInitr   ÚEVP_DigestVerifyÚlenÚ_consume_errorsr   ÚInvalidSignature)r   r0   r1   Ú
evp_md_ctxr.   r   r   r   Úverify7   s(   
ÿûÿ
þz_Ed448PublicKey.verify)Ú__name__Ú
__module__Ú__qualname__r   r   r   r   Úbytesr   r   r<   r   r   r   r   r      s    þý
ü
r   c                   @   sb   e Zd Zdd„ Zdefdd„Zdedefdd„Zd	ej	d
ej
dejdefdd„Zdefdd„ZdS )Ú_Ed448PrivateKeyc                 C   r	   r
   r   r   r   r   r   r   N   r   z_Ed448PrivateKey.__init__r   c                 C   sz   | j j dt¡}| j j dt¡}| j j | j||¡}| j  |dk¡ | j  |d tk¡ | j j |¡d d … }| j  	|¡S r!   )
r   r$   r%   r&   r'   r(   r   r)   r*   Úed448_load_public_bytes)r   r,   r-   r.   r   r   r   r   Ú
public_keyR   s   ÿz_Ed448PrivateKey.public_keyr1   c                 C   sð   | j j ¡ }| j  || j jjk¡ | j j || j jj¡}| j j || j jj| j jj| j jj| j	¡}| j  |dk¡ | j j 
dt¡}| j j 
dt|ƒ¡}| j j ||||t|ƒ¡}| j  |dk¡ | j  |d tk¡ | j j ||d ¡d d … S )Nr#   zunsigned char[]r"   r   )r   r'   r2   r)   r$   r3   r4   r5   ÚEVP_DigestSignInitr   r%   Ú_ED448_SIG_SIZEr8   ÚEVP_DigestSignr*   )r   r1   r;   r.   r,   r-   r   r   r   Úsign]   s*   
ÿûÿz_Ed448PrivateKey.signr   r   Úencryption_algorithmc                 C   sd   |t jju s|t jju r&|t jjus|t jjust|t jƒs"tdƒ‚|  ¡ S | j	 
|||| | jd ¡S )NzcWhen using Raw both encoding and format must be Raw and encryption_algorithm must be NoEncryption())r   r   r   r   ÚPrivateFormatÚ
isinstanceÚNoEncryptionr   Ú_raw_private_bytesr   Ú_private_key_bytesr   )r   r   r   rH   r   r   r   Úprivate_bytest   s   ÿÿÿÿz_Ed448PrivateKey.private_bytesc                 C   r    r!   )	r   r$   r%   r&   r'   ÚEVP_PKEY_get_raw_private_keyr   r)   r*   r+   r   r   r   rL   �   r/   z#_Ed448PrivateKey._raw_private_bytesN)r=   r>   r?   r   r   rC   r@   rG   r   r   rI   ÚKeySerializationEncryptionrN   rL   r   r   r   r   rA   M   s    þýü
ûrA   N)Úcryptographyr   Úcryptography.hazmat.primitivesr   Ú/cryptography.hazmat.primitives.asymmetric.ed448r   r   r&   rE   r   rA   r   r   r   r   Ú<module>   s   <