New answers tagged threshold-cryptography
1
In general this is not possible.
Assuming a finite group, for any $A$ in the group and for any $x$ in the group, the pair $(x,A-x)$ is a possible solution.
You cannot do any better. If you have some side information which enables you test a value $x$ for being valid, you would at worst still need to test every $x$ in the group.
This property follows from the ...
3
It seems that the question you're asking is about how to add a public (unmasked?) value to a secret-shared value. I suggest you edit the question a bit to clarify that this is not related to AES directly.
With that aside, adding a public value to a secret-shared value depends heavily on what secret-sharing scheme you're using, and also the algebraic ...
Top 50 recent answers are included
