Why compare two strings via calculating xor of their characters?

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Chapters
00:00 Question
00:46 Accepted answer (Score 7)
01:25 Answer 2 (Score 1)
06:46 Answer 3 (Score -2)
07:11 Thank you

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Full question
https://stackoverflow.com/questions/5946...

Accepted answer links:
[hmac.compare_digest]: https://docs.python.org/3/library/hmac.h...

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Tags
#python #string #algorithm #stringcomparison #xor

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