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Do not use easily-misread glyphs in Firestore auto-IDs. - #4107
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tseaver
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Oct 3, 2017
tseaver
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Oct 3, 2017
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I can't see how the test failure has anything to do with this change: _______________test_wrap_method_with_overriding_retry_deadline_______________Traceback (mostrecentcalllast):
File"C:\projects\google-cloud-python\core\tests\unit\api_core\gapic\test_method.py", line159, intest_wrap_method_with_overriding_retry_deadlineasserttimeout_args== [5, 10, 20, 29]
AssertionError: assert [5.0, 10.0, 20.0, 30.0] == [5, 10, 20, 29]
Atindex3diff: 30.0!=29Fulldiff:
- [5.0, 10.0, 20.0, 30.0]
+ [5, 10, 20, 29]
==============================warningssummary===============================core/tests/unit/test_iam.py::TestPolicy::test_editors_setter |
This way the entropy is preserved after dropping the alphabet from 62 to 55 characters: >>> (62. / 55.)**20 10.979435205204474 >>> 55**20 < 62**20 < 55**21 True
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7611a97Comparechemelnucfin
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Dec 13, 2017
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Likewise going to pull the trigger here. Please let me know if there are objections. |
dhermes
commented
Dec 13, 2017
ContributorAuthor
@chemelnucfin Can you revert this? We never got sign off from the Firestore team for this. |
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* Do not use easily-misread glyphs in auto-IDs. * Updating from 20 to 21 auto-id chars. This way the entropy is preserved after dropping the alphabet from 62 to 55 characters: >>> (62. / 55.)**20 10.979435205204474 >>> 55**20 < 62**20 < 55**21 True
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This PR removes
{'i', 'I', 'l', 'o', 'O', '0', '1'}from the set of characters used in automatically-generated IDs, because it is easy to mis-read them if you are in a situation where you need to do that.Exact set of blacklisted characters is loaned from Django's
make_random_password./cc @schmidt-sebastian