Bit flips like that should be easy to reverse. Flip just one bit at the n-th pla... | Hacker News

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		henearkr on July 4, 2021 \| parent \| context \| favorite \| on: Single random bit flip causes error in certificate... Bit flips like that should be easy to reverse. Flip just one bit at the n-th place and test again the certificate, and vary n, until it is valid. It's done in linear time.

Denvercoder9 on July 4, 2021 [–]

There's a bit flip in the recorded hash of the certificate, not in the certificate itself. You'd need to break SHA-2 to reverse that.

henearkr on July 4, 2021 | [–]

Ah yes, indeed. If you can't have the certificate to check the hash, then you're screwed.

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