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fdHdI�Z�e�Z�dS )J� N)�Tuple)�ffi�lib)�ensure� �char *�crypto_pwhash_ALG_ARGON2I13� crypto_pwhash_ALG_ARGON2ID13�crypto_pwhash_ALG_DEFAULT�crypto_pwhash_SALTBYTES�crypto_pwhash_STRBYTES�crypto_pwhash_PASSWD_MIN�crypto_pwhash_PASSWD_MAX�crypto_pwhash_BYTES_MIN�crypto_pwhash_BYTES_MAX� crypto_pwhash_argon2i_STRPREFIX�"crypto_pwhash_argon2i_MEMLIMIT_MIN�"crypto_pwhash_argon2i_MEMLIMIT_MAX�"crypto_pwhash_argon2i_OPSLIMIT_MIN�"crypto_pwhash_argon2i_OPSLIMIT_MAX�*crypto_pwhash_argon2i_OPSLIMIT_INTERACTIVE�*crypto_pwhash_argon2i_MEMLIMIT_INTERACTIVE�'crypto_pwhash_argon2i_OPSLIMIT_MODERATE�'crypto_pwhash_argon2i_MEMLIMIT_MODERATE�(crypto_pwhash_argon2i_OPSLIMIT_SENSITIVE�(crypto_pwhash_argon2i_MEMLIMIT_SENSITIVE� crypto_pwhash_argon2id_STRPREFIX�#crypto_pwhash_argon2id_MEMLIMIT_MIN�#crypto_pwhash_argon2id_MEMLIMIT_MAX�#crypto_pwhash_argon2id_OPSLIMIT_MIN�#crypto_pwhash_argon2id_OPSLIMIT_MAX�+crypto_pwhash_argon2id_OPSLIMIT_INTERACTIVE�+crypto_pwhash_argon2id_MEMLIMIT_INTERACTIVE�(crypto_pwhash_argon2id_OPSLIMIT_MODERATE�(crypto_pwhash_argon2id_MEMLIMIT_MODERATE�)crypto_pwhash_argon2id_OPSLIMIT_SENSITIVE�)crypto_pwhash_argon2id_MEMLIMIT_SENSITIVE��?�? l ���� i �n�r�p�maxmem�returnc C s t |dkdtjd� t |dkdtjd� t | | d @ dkdtjd� t | dkdtjd� t |t| kd�t�tjd� t | dd | > k tjd� |d
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}t |t| ktjd� t |tj| ktjd� t || |kdtjd� d S )Nr zInvalid block size��raisingz Invalid parallelization factor� z Cost factor must be a power of 2z Cost factor must be at least 2zp*r is greater than {}� � � � � z7Memory limit would be exceeded with the choosen n, r, p)r �exc�
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z/Python implementation of libsodium's pickparamsi � � r4 r0 r5 r( r3 r2 r' )�range)rC rD r* r+ �maxn�n_log2�maxrpr@ r@ rA � nacl_bindings_pick_scrypt_params� s* �� �
rJ �@ �passwd�salt�dklenc C s� t tdtjd� t t|t�td� t t|t�td� t t|t�td� t t| t�td� t t|t�td� t||||� t �
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Derive a cryptographic key using the ``passwd`` and ``salt``
given as input.
The work factor can be tuned by by picking different
values for the parameters
:param bytes passwd:
:param bytes salt:
:param bytes salt: *must* be *exactly* :py:const:`.SALTBYTES` long
:param int dklen:
:param int opslimit:
:param int n:
:param int r: block size,
:param int p: the parallelism factor
:param int maxmem: the maximum available memory available for scrypt's
operations
:rtype: bytes
:raises nacl.exceptions.UnavailableError: If called when using a
minimal build of libsodium.
� Not available in minimal buildr. z uint8_t[]r �$Unexpected failure in key derivationr N)r �&has_crypto_pwhash_scryptsalsa208sha256r6 �UnavailableError�
isinstance�int� TypeError�bytesrB r �newr �%crypto_pwhash_scryptsalsa208sha256_ll�len� RuntimeError�buffer�cast) rL rM r) r* r+ rN r, �buf�retr@ r@ rA rX s* � �� rX c C sP t tdtjd� t�dt�}t�|| t | �||�}t |dkdtj
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Derive a cryptographic key using the ``passwd`` and ``salt``
given as input, returning a string representation which includes
the salt and the tuning parameters.
The returned string can be directly stored as a password hash.
See :py:func:`.crypto_pwhash_scryptsalsa208sha256` for a short
discussion about ``opslimit`` and ``memlimit`` values.
:param bytes passwd:
:param int opslimit:
:param int memlimit:
:return: serialized key hash, including salt and tuning parameters
:rtype: bytes
:raises nacl.exceptions.UnavailableError: If called when using a
minimal build of libsodium.
rO r. �char[]r z&Unexpected failure in password hashing) r rQ r6 rR r rW �SCRYPT_STRBYTESr �&crypto_pwhash_scryptsalsa208sha256_strrY rZ �string)rL rC rD r] r^ r@ r@ rA ra E s � ��
ra � passwd_hashc C sV t tdtjd� t t| �td kdtjd� t�| |t|��}t |dkdtj d� dS )a9
Verifies the ``passwd`` against the ``passwd_hash`` that was generated.
Returns True or False depending on the success
:param passwd_hash: bytes
:param passwd: bytes
:rtype: boolean
:raises nacl.exceptions.UnavailableError: If called when using a
minimal build of libsodium.
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�re �algc C s� |t kr6|tk rt�d�t���|tkr t�d�t���| tk r(t�d�t���| tkr4t�d�t���d S |tkrl|t k rFt�d�t ���|t
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d��)Nz"memlimit must be at least {} bytesz!memlimit must be at most {} bytesz opslimit must be at least {}zopslimit must be at most {}zUnsupported algorithm)r r r6 r7 r9 r r r r r r r r rU )rC rD rh r@ r@ rA �_check_argon2_limits_alg� sj ������������������
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Derive a raw cryptographic key using the ``passwd`` and the ``salt``
given as input to the ``alg`` algorithm.
:param outlen: the length of the derived key
:type outlen: int
:param passwd: The input password
:type passwd: bytes
:param salt:
:type salt: bytes
:param opslimit: computational cost
:type opslimit: int
:param memlimit: memory cost
:type memlimit: int
:param alg: algorithm identifier
:type alg: int
:return: derived key
:rtype: bytes
r. z"salt must be exactly {} bytes longz*derived key must be at least {} bytes longz)derived key must be at most {} bytes longzunsigned char[]r rP N)r rS rT r6 rU rV rY r r7 r9 r r ri r rW r �
crypto_pwhashrZ r[ )rj rL rM rC rD rh �outbufr^ r@ r@ rA �crypto_pwhash_alg� sD ������ ��rm c C s� t t|t�td� t t|t�td� t t| t�td� t|||� t�dd�}t� || t
| �|||�}t |dkdt j d� t�
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Derive a cryptographic key using the ``passwd`` given as input
and a random salt, returning a string representation which
includes the salt, the tuning parameters and the used algorithm.
:param passwd: The input password
:type passwd: bytes
:param opslimit: computational cost
:type opslimit: int
:param memlimit: memory cost
:type memlimit: int
:param alg: The algorithm to use
:type alg: int
:return: serialized derived key and parameters
:rtype: bytes
r. r_ r2 r rP )r rS rT rU rV ri r rW r �crypto_pwhash_str_algrY r6 rZ rb )rL rC rD rh rl r^ r@ r@ rA rn s ��
rn c C sf t t| t�td� t t|t�td� t t| �dkdtjd� t�| |t|��}t |dkdtj d� dS )a4
Verifies the ``passwd`` against a given password hash.
Returns True on success, raises InvalidkeyError on failure
:param passwd_hash: saved password hash
:type passwd_hash: bytes
:param passwd: password to be checked
:type passwd: bytes
:return: success
:rtype: boolean
r. � z#Hash must be at most 127 bytes longr rd T)
r rS rV rU rY r6 r7 r �crypto_pwhash_str_verifyrf rg r@ r@ rA rp = s
�rp )�r; �typingr �nacl.exceptions�
exceptionsr6 � nacl._sodiumr r r �bool�-PYNACL_HAS_CRYPTO_PWHASH_SCRYPTSALSA208SHA256rQ �,crypto_pwhash_scryptsalsa208sha256_STRPREFIX�,crypto_pwhash_scryptsalsa208sha256_SALTBYTES�+crypto_pwhash_scryptsalsa208sha256_STRBYTES�-crypto_pwhash_scryptsalsa208sha256_PASSWD_MIN�-crypto_pwhash_scryptsalsa208sha256_PASSWD_MAX�,crypto_pwhash_scryptsalsa208sha256_BYTES_MIN�,crypto_pwhash_scryptsalsa208sha256_BYTES_MAX�/crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_MIN�/crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_MAX�/crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_MIN�/crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_MAX�7crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_INTERACTIVE�7crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_INTERACTIVE�5crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_SENSITIVE�5crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_SENSITIVErb r\ �,crypto_pwhash_scryptsalsa208sha256_strprefix�,crypto_pwhash_scryptsalsa208sha256_saltbytes�+crypto_pwhash_scryptsalsa208sha256_strbytes�-crypto_pwhash_scryptsalsa208sha256_passwd_min�-crypto_pwhash_scryptsalsa208sha256_passwd_max�,crypto_pwhash_scryptsalsa208sha256_bytes_min�,crypto_pwhash_scryptsalsa208sha256_bytes_max�/crypto_pwhash_scryptsalsa208sha256_memlimit_min�/crypto_pwhash_scryptsalsa208sha256_memlimit_max�/crypto_pwhash_scryptsalsa208sha256_opslimit_min�/crypto_pwhash_scryptsalsa208sha256_opslimit_max�7crypto_pwhash_scryptsalsa208sha256_opslimit_interactive�7crypto_pwhash_scryptsalsa208sha256_memlimit_interactive�5crypto_pwhash_scryptsalsa208sha256_opslimit_sensitive�5crypto_pwhash_scryptsalsa208sha256_memlimit_sensitive�crypto_pwhash_alg_argon2i13r rT �__annotations__� crypto_pwhash_alg_argon2id13r �crypto_pwhash_alg_defaultr
�crypto_pwhash_saltbytesr �crypto_pwhash_strbytesr �crypto_pwhash_passwd_minr
�crypto_pwhash_passwd_maxr �crypto_pwhash_bytes_minr �crypto_pwhash_bytes_maxr � crypto_pwhash_argon2i_strprefixr rV �"crypto_pwhash_argon2i_memlimit_minr �"crypto_pwhash_argon2i_memlimit_maxr �"crypto_pwhash_argon2i_opslimit_minr �"crypto_pwhash_argon2i_opslimit_maxr �*crypto_pwhash_argon2i_opslimit_interactiver �*crypto_pwhash_argon2i_memlimit_interactiver �'crypto_pwhash_argon2i_opslimit_moderater �'crypto_pwhash_argon2i_memlimit_moderater �(crypto_pwhash_argon2i_opslimit_sensitiver �(crypto_pwhash_argon2i_memlimit_sensitiver � crypto_pwhash_argon2id_strprefixr �#crypto_pwhash_argon2id_memlimit_minr �#crypto_pwhash_argon2id_memlimit_maxr �#crypto_pwhash_argon2id_opslimit_minr �#crypto_pwhash_argon2id_opslimit_maxr �+crypto_pwhash_argon2id_opslimit_interactiver! �+crypto_pwhash_argon2id_memlimit_interactiver" �(crypto_pwhash_argon2id_opslimit_moderater# �(crypto_pwhash_argon2id_memlimit_moderater$ �)crypto_pwhash_argon2id_opslimit_sensitiver% �)crypto_pwhash_argon2id_memlimit_sensitiver& �SCRYPT_OPSLIMIT_INTERACTIVE�SCRYPT_MEMLIMIT_INTERACTIVE�SCRYPT_OPSLIMIT_SENSITIVE�SCRYPT_MEMLIMIT_SENSITIVE�SCRYPT_SALTBYTESr` r8 �LOG2_UINT64_MAXr: �SCRYPT_MAX_MEMrB rJ rX ra re ri rm rn rp � crypto_pwhash_argon2i_str_verifyr@ r@ r@ rA �<module> s�
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