U EZh@sddlZddlZddlmZdZdeeejddddZGdd d ZGd d d Z Gd d d Z Gdddej dZ e Z Gdddej dZeZGdddej dZeZdS)N)_serializationi DHParameters) generatorkey_sizebackendreturncCsddlm}|||SNr)r),cryptography.hazmat.backends.openssl.backendrZgenerate_dh_parameters)rrrosslr s/home/aprabhat/apps/x.techxrdev.in/venv/lib/python3.8/site-packages/cryptography/hazmat/primitives/asymmetric/dh.pygenerate_parameterss r c@seZdZdeeejeddddZeedddZ dej dd d d Z e ed d dZ e ed ddZe ejed ddZdS)DHParameterNumbersN)pgqrcCsxt|trt|tstd|dk r6t|ts6td|dkrFtd|tkrbtdtd||_||_||_dS)Nzp and g must be integerszq must be integer or Nonez!DH generator must be 2 or greaterzp (modulus) must be at least z-bit) isinstanceint TypeError ValueError bit_length_MIN_MODULUS_SIZE_p_g_q)selfrrrr r r __init__s  zDHParameterNumbers.__init__otherrcCs2t|tstS|j|jko0|j|jko0|j|jkSN)rrNotImplementedrrrrrr r r __eq__)s "zDHParameterNumbers.__eq__rrrcCsddlm}||Sr)r rZload_dh_parameter_numbersrrr r r r parameters1s zDHParameterNumbers.parametersrcCs|jSr )rrr r r r8szDHParameterNumbers.pcCs|jSr )rr(r r r r<szDHParameterNumbers.gcCs|jSr )rr(r r r r@szDHParameterNumbers.q)N)N)__name__ __module__ __qualname__rtypingOptionalrobjectboolr#Anyr&propertyrrrr r r r rsrc@sfeZdZeeddddZeedddZde j dd d d Z e ed d dZ e ed ddZdS)DHPublicNumbersN)yparameter_numbersrcCs4t|tstdt|ts$td||_||_dS)Nzy must be an integer.z5parameters must be an instance of DHParameterNumbers.)rrrr_y_parameter_numbers)rr3r4r r r rFs  zDHPublicNumbers.__init__rcCs&t|tstS|j|jko$|j|jkSr )rr2r!r5r6r"r r r r#Rs    zDHPublicNumbers.__eq__ DHPublicKeyr$cCsddlm}||Sr)r rZload_dh_public_numbersr%r r r public_key[s zDHPublicNumbers.public_keyr'cCs|jSr )r5r(r r r r3bszDHPublicNumbers.ycCs|jSr )r6r(r r r r4fsz!DHPublicNumbers.parameter_numbers)N)r)r*r+rrrr.r/r#r,r0r8r1r3r4r r r r r2Es  r2c@sfeZdZeeddddZeedddZde j dd d d Z e ed d dZ e ed ddZdS)DHPrivateNumbersN)xpublic_numbersrcCs4t|tstdt|ts$td||_||_dS)Nzx must be an integer.z6public_numbers must be an instance of DHPublicNumbers.)rrrr2_x_public_numbers)rr:r;r r r rls  zDHPrivateNumbers.__init__rcCs&t|tstS|j|jko$|j|jkSr )rr9r!r<r=r"r r r r#xs    zDHPrivateNumbers.__eq__ DHPrivateKeyr$cCsddlm}||Sr)r rZload_dh_private_numbersr%r r r private_keys zDHPrivateNumbers.private_keyr'cCs|jSr )r=r(r r r r;szDHPrivateNumbers.public_numberscCs|jSr )r<r(r r r r:szDHPrivateNumbers.x)N)r)r*r+rr2rr.r/r#r,r0r?r1r;r:r r r r r9ks  r9c@sPeZdZejddddZejejeje dddZ eje ddd Z d S) rr>r'cCsdS)z7 Generates and returns a DHPrivateKey. Nr r(r r r generate_private_keysz!DHParameters.generate_private_keyencodingformatrcCsdS)z= Returns the parameters serialized as bytes. Nr rrBrCr r r parameter_bytesszDHParameters.parameter_bytescCsdS)z/ Returns a DHParameterNumbers. Nr r(r r r r4szDHParameters.parameter_numbersN) r)r*r+abcabstractmethodr@rEncodingZParameterFormatbytesrErr4r r r r rs ) metaclassc@sheZdZeejedddZejedddZ eje dddZ eje j e jedd d Zd S) r7r'cCsdSz6 The bit length of the prime modulus. Nr r(r r r rszDHPublicKey.key_sizecCsdS)zJ The DHParameters object associated with this public key. Nr r(r r r r&szDHPublicKey.parameterscCsdS)z, Returns a DHPublicNumbers. Nr r(r r r r;szDHPublicKey.public_numbersrAcCsdSz6 Returns the key serialized as bytes. Nr rDr r r public_bytesszDHPublicKey.public_bytesN)r)r*r+r1rFrGrrrr&r2r;rrHZ PublicFormatrIrMr r r r r7sr7c@seZdZeejedddZejedddZ eje dddZ ejee dd d Z ejedd d Zejejejeje d ddZdS)r>r'cCsdSrKr r(r r r rszDHPrivateKey.key_sizecCsdS)zC The DHPublicKey associated with this private key. Nr r(r r r r8szDHPrivateKey.public_keycCsdS)zK The DHParameters object associated with this private key. Nr r(r r r r&szDHPrivateKey.parameters)peer_public_keyrcCsdS)zn Given peer's DHPublicKey, carry out the key exchange and return shared key as bytes. Nr )rrNr r r exchangeszDHPrivateKey.exchangecCsdS)z- Returns a DHPrivateNumbers. Nr r(r r r private_numbersszDHPrivateKey.private_numbers)rBrCencryption_algorithmrcCsdSrLr )rrBrCrQr r r private_bytesszDHPrivateKey.private_bytesN)r)r*r+r1rFrGrrr7r8rr&rIrOr9rPrrHZ PrivateFormatZKeySerializationEncryptionrRr r r r r>s"r>)N)rFr,Zcryptography.hazmat.primitivesrrrr0r rr2r9ABCMetarZDHParametersWithSerializationr7ZDHPublicKeyWithSerializationr>ZDHPrivateKeyWithSerializationr r r r s&  /&&-