Xh"ddlmZddlZddlmZmZddlmZmZm Z m Z ddl m Z ddl mZmZmZddlmZeZej(Zej,Zej0Zej4Zej8Zd d ZGd d Zy) ) annotationsN)ClassVarLiteral) Parameters _check_typesextract_parametersvalidate_params_for_platform)InvalidHashError)Type hash_secret verify_secret)get_default_parameterscHt|tr|S|j|S)zM Ensure *s* is a bytes string. Encode using *encoding* if it isn't. ) isinstancebytesencode)sencodings K/var/www/html/myenv/lib/python3.12/site-packages/argon2/_password_hasher.py _ensure_bytesrs"!U 88H cneZdZUdZddgZded<ded<eeee e de jf ddZ eddZedd Zedd Zedd Zedd Zedd ZeddZddddZe j0e j2e jdZded< ddZddZy)PasswordHashera High level class to hash passwords with sensible defaults. Uses Argon2\ **id** by default and uses a random salt_ for hashing. But it can verify any type of Argon2 as long as the hash is correctly encoded. The reason for this being a class is both for convenience to carry parameters and to verify the parameters only *once*. Any unnecessary slowdown when hashing is a tangible advantage for a brute-force attacker. Args: time_cost: Defines the amount of computation realized and therefore the execution time, given in number of iterations. memory_cost: Defines the memory usage, given in kibibytes_. parallelism: Defines the number of parallel threads (*changes* the resulting hash value). hash_len: Length of the hash in bytes. salt_len: Length of random salt to be generated for each password. encoding: The Argon2 C library expects bytes. So if :meth:`hash` or :meth:`verify` are passed a ``str``, it will be encoded using this encoding. type: Argon2 type to use. Only change for interoperability with legacy systems. .. versionadded:: 16.0.0 .. versionchanged:: 18.2.0 Switch from Argon2i to Argon2id based on the recommendation by the current RFC draft. See also :doc:`parameters`. .. versionchanged:: 18.2.0 Changed default *memory_cost* to 100 MiB and default *parallelism* to 8. .. versionchanged:: 18.2.0 ``verify`` now will determine the type of hash. .. versionchanged:: 18.3.0 The Argon2 type is configurable now. .. versionadded:: 21.2.0 :meth:`from_parameters` .. versionchanged:: 21.2.0 Changed defaults to :data:`argon2.profiles.RFC_9106_LOW_MEMORY`. .. _salt: https://en.wikipedia.org/wiki/Salt_(cryptography) .. _kibibytes: https://en.wikipedia.org/wiki/Binary_prefix#kibi _parametersrrstrzutf-8c t|tf|tf|tf|tf|tf|tf|tf}|r t |t |d|||||} t | | |_||_y)N) time_cost memory_cost parallelismhash_lensalt_lenrtype)r#versionr"r!rrr ) rintrr TypeErrorrr rr) selfrrr r!r"rr#eparamss r__init__zPasswordHasher.__init__^s  #&$c*$c*___  A, ##  %V,"  rc||j|j|j|j|j|j S)z Construct a `PasswordHasher` from *params*. Returns: A `PasswordHasher` instance with the parameters from *params*. .. versionadded:: 21.2.0 rrr r!r"r#r-)clsr*s rfrom_parameterszPasswordHasher.from_parameterssA&&****____   rc.|jjSN)rrr(s rrzPasswordHasher.time_costs)))rc.|jjSr1)rrr2s rrzPasswordHasher.memory_cost+++rc.|jjSr1)rr r2s rr zPasswordHasher.parallelismr4rc.|jjSr1)rr!r2s rr!zPasswordHasher.hash_len(((rc.|jjSr1)rr"r2s rr"zPasswordHasher.salt_lenr7rc.|jjSr1)rr#r2s rr#zPasswordHasher.types$$$rN)saltc tt||j|xstj|j |j |j|j|j|jjdS)a Hash *password* and return an encoded hash. Args: password: Password to hash. salt: If None, a random salt is securely created. .. danger:: You should **not** pass a salt unless you really know what you are doing. Raises: argon2.exceptions.HashingError: If hashing fails. Returns: Hashed *password*. .. versionadded:: 23.1.0 *salt* parameter )secretr:rrr r!r#ascii) r rrosurandomr"rrr r!r#decode)r(passwordr:s rhashzPasswordHasher.hashsf. 4==92DMM2nn((((]]  &/ r)s $argon2i$s $argon2d$s $argon2idzClassVar[dict[bytes, Type]]_header_to_typect|d} |j|dd}t |t||j |S#t$rtdwxYw)ak Verify that *password* matches *hash*. .. warning:: It is assumed that the caller is in full control of the hash. No other parsing than the determination of the hash type is done by *argon2-cffi*. Args: hash: An encoded hash as returned from :meth:`PasswordHasher.hash`. password: The password to verify. Raises: argon2.exceptions.VerifyMismatchError: If verification fails because *hash* is not valid for *password*. argon2.exceptions.VerificationError: If verification fails for other reasons. argon2.exceptions.InvalidHashError: If *hash* is so clearly invalid, that it couldn't be passed to Argon2. Returns: ``True`` on success, otherwise an exception is raised. .. versionchanged:: 16.1.0 Raise :exc:`~argon2.exceptions.VerifyMismatchError` on mismatches instead of its more generic superclass. .. versionadded:: 18.2.0 Hash type agility. r=N )rrC LookupErrorr rr)r(rBrA hash_types rverifyzPasswordHasher.verifysfJT7+ -,,T"1X6I -$--8)   -" , -s AActt|tr|jd}|jt |k7S)a Check whether *hash* was created using the instance's parameters. Whenever your Argon2 parameters -- or *argon2-cffi*'s defaults! -- change, you should rehash your passwords at the next opportunity. The common approach is to do that whenever a user logs in, since that should be the only time when you have access to the cleartext password. Therefore it's best practice to check -- and if necessary rehash -- passwords after each successful authentication. Args: hash: An encoded Argon2 password hash. Returns: Whether *hash* was created using the instance's parameters. .. versionadded:: 18.2.0 .. versionchanged:: 24.1.0 Accepts bytes for *hash*. r=)rrr@rr )r(rBs rcheck_needs_rehashz!PasswordHasher.check_needs_rehashs3, dE ";;w'D#5d#;;;r)rr&rr&r r&r!r&r"r&rrr#r )r*rreturnr)rKr&)rKr )rA str | bytesr:z bytes | NonerKr)rBrLrArLrKz Literal[True])rBrLrKbool)__name__ __module__ __qualname____doc__ __slots____annotations__DEFAULT_TIME_COSTDEFAULT_MEMORY_COSTDEFAULT_PARALLELISMDEFAULT_HASH_LENGTHDEFAULT_RANDOM_SALT_LENGTHr IDr+ classmethodr/propertyrrr r!r"r#rBIDrCrHrJrrrr&sf0d +IM+..+2WW$!$!$! $!  $!  $!$!$!L  &**,,,,))))%%CGDffffgg4O0 - - +6- - ^typingrr_utilsrrr r exceptionsr low_levelr r rprofilesrdefault_paramsr"rXr!rWrrTrrUr rVrrr^rrrfs# $ )77,()+44$--",,$00$00y<y