Article 5QTMB what does keyfile vs YUBIKEY5 challenge response does? how do hey differ

what does keyfile vs YUBIKEY5 challenge response does? how do hey differ

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questionsyes
from LinuxQuestions.org on (#5QTMB)
hi so just a password is not enough.

before i can choose to use keyfile or yubikey5 challenge response on top the the pw, i would like to understand what each does and how do they differ..

anyone is deep enough to tell me ?

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