I’m pretty new on DPA analysis but I’m trying to learn what I can.
I would like to execute a DPA over a chip which execute a SHA256 over some known + unknown data.
In my case the chip is used to execute a sort of authentication based on the result of SHA256(challenge + shared key). From my understaning of the SHA256 algorithm the DPA should be possibile to get the shared key.
I would like to implement that attack on a chipwisper light (with the xmega target) to get it working on a know environment before then execute the attack on the real hardware.
Do you know if this kind of work has been already done by someone on others hashing algorithms? I did a search but I found only some accademic paper (which confirmed me that the attack is feasible) but nothing more.
Thank you in advance