Post
Topic
Board Development & Technical Discussion
Re: Private key recovery with 120 bit nonce leakage possible?
by
stilichovandal
on 26/04/2024, 12:46:44 UTC
Hello
You can calculate with simple python
int(1.03 * 4 / 3 * 256 / 120)
Result is 2 min need.

Result is tested and can be verify with https://github.com/bitlogik/lattice-attack your self too.

Regards,


Thank you. Yes, I have seen this, and based on the calculation, I need three signatures for the lattice attack.
For the lattice attack to work, I don't need to know the nonce; as long as the bits (120 in this case) are the same for three signatures, it works.

However, in my scenario, I know the 120 bits of nonce.
Eg.
If my nonce is
E036153289470F858562CC4DAA5359381246C709F6193B68367727D39D999F8F, I know that nonce starts with E036153289470F858562CC4DAA5359?HuhHuhHuhHuhHuhHuhHuhHuhHuhHuhHuh

The question is, is it possible to get a private key for this?