3 ms·
No, you can't reverse anything. There are more details at: https://www.calctopia.com/2017/02/01/on-the-security-model/ https://www.calctopia.com/2017/02/01/on-t
by davidcerezo 10y ago
No, you can't reverse anything. There are more details at: https://www.calctopia.com/2017/02/01/on-the-security-model/ https://www.calctopia.com/2017/02/01/on-the-security-model/
- karulont 10y agoIn general you are correct, but there are still easy cases where reversing is trivial. For example if the shared output is the average (AVG = (X1 + X2) / 2). If I know X1 and AVG, I can easily calculate X2 (X2 = AVG * 2 - X1). However, usually you want to calculate something more interesting, that depends on more variables, so you won't get an exact number on the other parties secret inputs.