o
    Df%                     @  s   d dl mZ d dlmZ d dlmZ d dlmZ d dl	m
Z
 d dlmZ d dlmZ d dlmZmZmZmZ d d	lmZ d d
lmZ d dlmZmZ G dd dZe ZdS )    )annotations)openssl)binding)hashes)AsymmetricPadding)ec)utils)MGF1OAEPPSSPKCS1v15)CipherAlgorithm)AES)CBCModec                   @  s  e Zd ZdZdZefZejej	ej
ejejejejejejejejejfZejejejejfZdZdZdd> ZdZde> Zd[dd	Z d\ddZ!d]ddZ"d[ddZ#d\ddZ$d^ddZ%d_ddZ&d`ddZ'd`ddZ(dad d!Z)d`d"d#Z*dbd(d)Z+d`d*d+Z,dcd-d.Z-d`d/d0Z.ddd3d4Z/ddd5d6Z0dad7d8Z1d`d9d:Z2dad;d<Z3ded?d@Z4dfdCdDZ5dgdFdGZ6dadHdIZ7dadJdKZ8dadLdMZ9dadNdOZ:dadPdQZ;dadRdSZ<dadTdUZ=dadVdWZ>dadXdYZ?dZS )hBackendz)
    OpenSSL API binding interfaces.
    r   i   i     returnNonec                 C  s,   t  | _| jj| _| jj| _t | _	d S N)
r   Binding_bindingffi_ffilib_librust_opensslis_fips_enabled_fips_enabledself r!   e/home/ubuntu/webapp/venv/lib/python3.10/site-packages/cryptography/hazmat/backends/openssl/backend.py__init__E   s   


zBackend.__init__strc                 C  s    d|    d| j dtj dS )Nz<OpenSSLBackend(version: z, FIPS: z
, Legacy: z)>)openssl_version_textr   r   _legacy_provider_loadedr   r!   r!   r"   __repr__K   s   zBackend.__repr__okboolc                 C  s
   t |S r   )r   _openssl_assert)r    r(   r!   r!   r"   openssl_assertR      
zBackend.openssl_assertc                 C  s&   t t j t  sJ t  | _d S r   )r   enable_fips
_providersr   r   r   r!   r!   r"   _enable_fipsU   s   zBackend._enable_fipsc                 C     t  S )z
        Friendly string name of the loaded OpenSSL library. This is not
        necessarily the same version as it was compiled against.

        Example: OpenSSL 3.2.1 30 Jan 2024
        )r   r%   r   r!   r!   r"   r%   \   s   zBackend.openssl_version_textintc                 C  r0   r   )r   openssl_versionr   r!   r!   r"   openssl_version_numbere      zBackend.openssl_version_number	algorithmhashes.HashAlgorithmc                 C  sB   |j dv r|j  |jd  d}n|j d}| j|}|S )N)blake2bblake2s   ascii)namedigest_sizeencoder   EVP_get_digestbyname)r    r5   algevp_mdr!   r!   r"   _evp_md_from_algorithmh   s   
zBackend._evp_md_from_algorithmc                 C  s,   | j rt|| jsdS | |}|| jjkS NF)r   
isinstance_fips_hashesrA   r   NULL)r    r5   r@   r!   r!   r"   hash_supporteds   s   
zBackend.hash_supportedc                 C      | j rt|tjrdS | |S rB   r   rC   r   SHA1rF   r    r5   r!   r!   r"   signature_hash_supportedz   s   
z Backend.signature_hash_supportedc                 C  s   | j rdS ttjdS )NFderive_scrypt)r   hasattrr   kdfr   r!   r!   r"   scrypt_supported   s   zBackend.scrypt_supportedc                 C  rG   )NTrH   rJ   r!   r!   r"   hmac_supported   s   
zBackend.hmac_supportedcipherr   moder   c                 C  s$   | j rt|| jsdS tj||S rB   )r   rC   _fips_ciphersr   cipherscipher_supported)r    rQ   rR   r!   r!   r"   rU      s   zBackend.cipher_supportedc                 C  s
   |  |S r   )rP   rJ   r!   r!   r"   pbkdf2_hmac_supported   r,   zBackend.pbkdf2_hmac_supportedlist[rust_openssl.OpenSSLError]c                 C  r0   r   )r   capture_error_stackr   r!   r!   r"   _consume_errors   r4   zBackend._consume_errorsc                 C  s4   | j rt|tjrdS t|tjtjtjtjtjfS rB   )r   rC   r   rI   SHA224SHA256SHA384SHA512rJ   r!   r!   r"   _oaep_hash_supported   s   zBackend._oaep_hash_supportedpaddingr   c                 C  s   t |trdS t |tr&t |jtr&| jrt |jjtjrdS | 	|jjS t |t
r>t |jtr>| |jjo=| |jS dS )NTF)rC   r   r   _mgfr	   r   
_algorithmr   rI   rF   r
   r^   r    r_   r!   r!   r"   rsa_padding_supported   s   


zBackend.rsa_padding_supportedc                 C  s   | j r
t|tr
dS | |S rB   )r   rC   r   rc   rb   r!   r!   r"   rsa_encryption_supported   s   
z Backend.rsa_encryption_supportedc                 C  s   t j o| j S r   )r   CRYPTOGRAPHY_IS_BORINGSSLr   r   r!   r!   r"   dsa_supported   s   zBackend.dsa_supportedc                 C  s   |   sdS | |S rB   )rf   rK   rJ   r!   r!   r"   dsa_hash_supported   s   
zBackend.dsa_hash_supportedc                 C  s   |  |td|j S )N    )rU   r   
block_sizerJ   r!   r!   r"   cmac_algorithm_supported   s   z Backend.cmac_algorithm_supportedcurveec.EllipticCurvec                 C  s"   | j rt|| jsdS tj|S rB   )r   rC   _fips_ecdh_curvesr   r   curve_supported)r    rk   r!   r!   r"   elliptic_curve_supported   s
   z Backend.elliptic_curve_supportedsignature_algorithm"ec.EllipticCurveSignatureAlgorithmc                 C  s4   t |tjsdS | |ot |jtjp| |jS rB   )rC   r   ECDSAro   r5   
asym_utils	PrehashedrF   )r    rp   rk   r!   r!   r"   ,elliptic_curve_signature_algorithm_supported   s   

z4Backend.elliptic_curve_signature_algorithm_supportedec.ECDHc                 C  s   |  |o
t|tjS r   )ro   rC   r   ECDH)r    r5   rk   r!   r!   r"   +elliptic_curve_exchange_algorithm_supported   s   z3Backend.elliptic_curve_exchange_algorithm_supportedc                 C     t j S r   r   re   r   r!   r!   r"   dh_supported   r4   zBackend.dh_supportedc                 C  s   | j jdkS )Nr   )r   Cryptography_HAS_EVP_PKEY_DHXr   r!   r!   r"   dh_x942_serialization_supported   s   z'Backend.dh_x942_serialization_supportedc                 C     | j rdS dS NFTr   r   r!   r!   r"   x25519_supported      zBackend.x25519_supportedc                 C     | j rdS tj otj S rB   r   r   CRYPTOGRAPHY_IS_LIBRESSLre   r   r!   r!   r"   x448_supported   
   zBackend.x448_supportedc                 C  r~   r   r   r   r!   r!   r"   ed25519_supported  r   zBackend.ed25519_supportedc                 C  r   rB   r   r   r!   r!   r"   ed448_supported  r   zBackend.ed448_supportedc                 C  s   t jo| j S r   )r   #CRYPTOGRAPHY_OPENSSL_320_OR_GREATERr   r   r!   r!   r"   ecdsa_deterministic_supported  s   z%Backend.ecdsa_deterministic_supportedc                 C  r~   r   r   r   r!   r!   r"   poly1305_supported  r   zBackend.poly1305_supportedc                 C  ry   r   rz   r   r!   r!   r"   pkcs7_supported  r4   zBackend.pkcs7_supportedN)r   r   )r   r$   )r(   r)   r   r   )r   r1   )r5   r6   )r5   r6   r   r)   )r   r)   )rQ   r   rR   r   r   r)   )r   rW   )r_   r   r   r)   )rk   rl   r   r)   )rp   rq   rk   rl   r   r)   )r5   rv   rk   rl   r   r)   )@__name__
__module____qualname____doc__r;   r   rS   r   rZ   r[   r\   r]   
SHA512_224
SHA512_256SHA3_224SHA3_256SHA3_384SHA3_512SHAKE128SHAKE256rD   r   	SECP224R1	SECP256R1	SECP384R1	SECP521R1rm   _fips_rsa_min_key_size_fips_rsa_min_public_exponent_fips_dsa_min_modulus_fips_dh_min_key_size_fips_dh_min_modulusr#   r'   r+   r/   r%   r3   rA   rF   rK   rO   rP   rU   rV   rY   r^   rc   rd   rf   rg   rj   ro   ru   rx   r{   r}   r   r   r   r   r   r   r   r!   r!   r!   r"   r      sv    
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r   N)
__future__r   "cryptography.hazmat.bindings._rustr   r   $cryptography.hazmat.bindings.opensslr   cryptography.hazmat.primitivesr   *cryptography.hazmat.primitives._asymmetricr   )cryptography.hazmat.primitives.asymmetricr   r   rs   1cryptography.hazmat.primitives.asymmetric.paddingr	   r
   r   r   &cryptography.hazmat.primitives.ciphersr   1cryptography.hazmat.primitives.ciphers.algorithmsr   ,cryptography.hazmat.primitives.ciphers.modesr   r   r   backendr!   r!   r!   r"   <module>   s     
