^h"SSKJr SSKrSSKJrJr SSKJrJrJ r J r SSK J r SSK JrJrJr SSKJr \"5r\R(r\R,r\R0r\R4r\R8rS S jr"S S 5rg) ) annotationsN)ClassVarLiteral) Parameters _check_typesextract_parametersvalidate_params_for_platform)InvalidHashError)Type hash_secret verify_secret)get_default_parameterscR[U[5(aU$URU5$)zE Ensure *s* is a bytes string. Encode using *encoding* if it isn't. ) isinstancebytesencode)sencodings Q/home/james-whalen/.local/lib/python3.13/site-packages/argon2/_password_hasher.py _ensure_bytesrs%!U 88H c\rSrSr%SrSS/rS\S'S\S'\\\ \ \ S\ R4SSjjr\SS j5r\SS j5r\SS j5r\SS j5r\SS j5r\SSj5r\SSj5rSS.SSjjr\ R2\ R4\ RS.rS\S'SSjrSSjrSrg) PasswordHasher&a 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 [U[4U[4U[4U[4U[4U[4U[4S9nU(a [ U5e[ USUUUUUS9n [ U 5 XlX`lg)N) time_cost memory_cost parallelismhash_lensalt_lenrtype)r$versionr#r"rr r!) rintrr TypeErrorrr rr) selfrr r!r"r#rr$eparamss r__init__PasswordHasher.__init__^s  #&$c*$c*___  A, ##  %V," rc U"URURURURURUR S9$)z Construct a `PasswordHasher` from *params*. Returns: A `PasswordHasher` instance with the parameters from *params*. .. versionadded:: 21.2.0 rr r!r"r#r$r/)clsr+s rfrom_parametersPasswordHasher.from_parameterssA&&****____   rc.URR$N)rrr)s rrPasswordHasher.time_costs)))rc.URR$r4)rr r5s rr PasswordHasher.memory_cost+++rc.URR$r4)rr!r5s rr!PasswordHasher.parallelismr9rc.URR$r4)rr"r5s rr"PasswordHasher.hash_len(((rc.URR$r4)rr#r5s rr#PasswordHasher.salt_lenr>rc.URR$r4)rr$r5s rr$PasswordHasher.types$$$rN)saltc [[XR5U=(d [R"UR 5UR URURURURS9RS5$)a Hash *password* and return an encoded hash. Args: password: Password to hash. salt: If None, a random salt is securely created. .. danger:: You should **not** pass a salt unless you really know what you are doing. Raises: argon2.exceptions.HashingError: If hashing fails. Returns: Hashed *password*. .. versionadded:: 23.1.0 *salt* parameter )secretrCrr r!r"r$ascii) r rrosurandomr#rr r!r"r$decode)r)passwordrCs rhashPasswordHasher.hashsd. ==92DMM2nn((((]]  &/ r)s $argon2i$s $argon2d$s $argon2idzClassVar[dict[bytes, Type]]_header_to_typec[US5nURUSSn[ U[X R 5U5$![a [Sef=f)a 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. rFN )rrM LookupErrorr rr)r)rKrJ hash_types rverifyPasswordHasher.verifysdJT7+ -,,T"1X6I ---8)   -" , -s AAc~[U[5(aURS5nUR[ U5:g$)a Check whether *hash* was created using the instance's parameters. Whenever your Argon2 parameters -- or *argon2-cffi*'s defaults! -- change, you should rehash your passwords at the next opportunity. The common approach is to do that whenever a user logs in, since that should be the only time when you have access to the cleartext password. Therefore it's best practice to check -- and if necessary rehash -- passwords after each successful authentication. Args: hash: An encoded Argon2 password hash. Returns: Whether *hash* was created using the instance's parameters. .. versionadded:: 18.2.0 .. versionchanged:: 24.1.0 Accepts bytes for *hash*. rF)rrrIrr )r)rKs rcheck_needs_rehash!PasswordHasher.check_needs_rehashs6, dE " ";;w'D#5d#;;;r)rr)rr'r r'r!r'r"r'r#r'rrr$r )r+rreturnr)rWr')rWr )rJ str | bytesrCz bytes | NonerWr)rKrXrJrXrWz Literal[True])rKrXrWbool)__name__ __module__ __qualname____firstlineno____doc__ __slots____annotations__DEFAULT_TIME_COSTDEFAULT_MEMORY_COSTDEFAULT_PARALLELISMDEFAULT_HASH_LENGTHDEFAULT_RANDOM_SALT_LENGTHr IDr, classmethodr1propertyrr r!r"r#r$rKIDrMrRrU__static_attributes__rrrr&sf0d +IM+..+2WW$!$!$! $!  $!  $!$!$!L  &**,,,,))))%%CGDffffgg4O0 - - +6- - ^rts# $ )77,()+44$--",,$00$00y<y