Armadillo ECDSA-113

[contextrax]

Originally Posted by cjack

Hi Contextrax, I have a VERY BAD target that I'm trying to reverse since a lot of time! The problem here is that it use A LOT of protected executables, so, maybe, the right way will be attacking the ECDSA certificate itself
Need support to calculate the last 4 ecc_curve_array[] parameters.
If you can help I'll extract the public certificate and post it here asap.
I think that a tool to calculate the 8 ecc_curve_array[] parameters will be AMAZING

You want to break 4 113 bit's ECC curves by solving ECDSA?
We used like 6 months last time so unless you have access to a lot of CPU's this will take forever.

[sendersu]

Originally Posted by contextrax

You want to break 4 113 bit's ECC curves by solving ECDSA?
We used like 6 months last time so unless you have access to a lot of CPU's this will take forever.

What is more important in bruteforcing - CPU GHz speed or # of cores?