New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

change nullifier to use all 256 bits of input #52

Open

lsankar4033 opened this issue May 6, 2022 · 0 comments

Assignees

Labels

bug

Collaborator

lsankar4033 commented May 6, 2022

write now, we only use 64 bits: https://github.com/0xPARC/cabal/blob/main/circuits/circuits/verify_cabal.circom#L55

so it's easier to brute force the first register of the privkey

This may not be a huge issue as you'd also (separately) need to brute force the last 128 bits to actually find a full privkey matching a pubkey.

lsankar4033 self-assigned this

lsankar4033 added the bug label

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment