4 ms·
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 l
by henearkr 5y ago
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 5y agoThere'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 5y agoAh yes, indeed. If you can't have the certificate to check the hash, then you're screwed.