Comments (5)
Hm yeah, I guess I’ll have to build hash flexibility (that’s the wrong word, isn’t it :)) into PasswordHasher and update the docs.
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Yep!
- Default to
Argon2id
time_cost=1
memory_cost=32*1024
(i.e. 32 MiB)parallelism=len(os.sched_getaffinity(0))
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Yeah I’ll try to read myself thru the RFC on the weekend. I’ve pinged Django about it too since they use the low-level functions.
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I have started working on that in #34 but I don’t think I’m comfortable to change the other default parameters .
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memory_cost
is arbitrary, the others are sane defaults. A time_cost > 1
doesn't make much sense for password hashing and having parallelism = number of cores
is quite obvious. Anyway, more than hardcoded default arguments, we need an helper function that, given a time constraint, returns optimal parameters. That's a good one: https://gitlab.com/cryptsetup/cryptsetup/blob/master/lib/crypto_backend/pbkdf_check.c#L202
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Related Issues (20)
- RFC is no longer a draft (RFC9106); default parameter choice out of date HOT 4
- 21.2.0: pep517 does not build cython modules HOT 6
- 21.1.0: `notebook` test suite is crashing with SIGILL in _cffi_backend.cpython.*so DSO HOT 11
- Inconsistent advice for key derivation HOT 5
- How to avoid timing attacks? HOT 1
- hash function return + / verify issue with sqlite HOT 3
- Question: Can output from argon2.low_level.hash_secret_raw() → bytes directly used to derive aes key? HOT 3
- Associated data cannot be specified in the low_level functions HOT 10
- Support password verification without sending the password from client to server HOT 5
- Make hash verification return True or False HOT 4
- Second salt HOT 1
- hash() got an unexpected keyword argument 'salt' HOT 1
- ImportError: cannot import name 'PasswordHasher' from partially initialized module 'argon2' HOT 1
- Install with poetry on python 3.11.7 --obsolete
- Strange error, can't figure out what is causing it HOT 2
- Make PasswordHasher.check_needs_rehash() accept bytes hash
- Allow use of argon2 "secret" parameter for keyed hashing HOT 1
- Fail to install by pip on macOS 11.0.1 Big Sur HOT 11
- 20.1.0: sphinx warnings HOT 4
- 20.1.0: pytest warnings HOT 3
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