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59 lines
1.2 KiB
59 lines
1.2 KiB
2 years ago
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# SPDX-License-Identifier: MIT
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"""
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This module offers access to standardized parameters that you can load using
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:meth:`PasswordHasher.from_parameters()`. See the `source code
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<https://github.com/hynek/argon2-cffi/blob/main/src/argon2/profiles.py>`_ for
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concrete values and :doc:`parameters` for more information.
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.. versionadded:: 21.2.0
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"""
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from ._utils import Parameters
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from .low_level import Type
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# FIRST RECOMMENDED option per RFC 9106.
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RFC_9106_HIGH_MEMORY = Parameters(
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type=Type.ID,
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version=19,
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salt_len=16,
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hash_len=32,
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time_cost=1,
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memory_cost=2097152, # 2 GiB
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parallelism=4,
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)
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# SECOND RECOMMENDED option per RFC 9106.
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RFC_9106_LOW_MEMORY = Parameters(
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type=Type.ID,
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version=19,
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salt_len=16,
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hash_len=32,
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time_cost=3,
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memory_cost=65536, # 64 MiB
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parallelism=4,
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)
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# The pre-RFC defaults in argon2-cffi 18.2.0 - 21.1.0.
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PRE_21_2 = Parameters(
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type=Type.ID,
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version=19,
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salt_len=16,
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hash_len=16,
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time_cost=2,
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memory_cost=102400, # 100 MiB
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parallelism=8,
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)
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# Only for testing!
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CHEAPEST = Parameters(
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type=Type.ID,
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version=19,
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salt_len=8,
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hash_len=4,
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time_cost=1,
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memory_cost=8,
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parallelism=1,
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)
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