njones
07-27-2009, 02:56 PM
AES128 encryption is great, it's not unbreakable, but in virtuall all applications it's "unprofitable" to break. The effort exceeds the reward ...
The downside to AES128 is that it is subject to US Government export controls. I'm not so much concerned about export controls, as I am about enforcement requirements.
I'm working on a product based on SNAP that could benefit from "Tamper Resistant" encryption rather than "Steel Safe" encryption.
It would be really nice if the "standard" SNAP firmware would support encryption, but limit the keys to some number of bits exempt from export controls. 32 bits would be Ok, 64 bits would be GREAT.
I'm not sure of your implementation, but it seems to me that the 64-bit version could simply truncate the key rather than re-writing the encryption code...
The downside to AES128 is that it is subject to US Government export controls. I'm not so much concerned about export controls, as I am about enforcement requirements.
I'm working on a product based on SNAP that could benefit from "Tamper Resistant" encryption rather than "Steel Safe" encryption.
It would be really nice if the "standard" SNAP firmware would support encryption, but limit the keys to some number of bits exempt from export controls. 32 bits would be Ok, 64 bits would be GREAT.
I'm not sure of your implementation, but it seems to me that the 64-bit version could simply truncate the key rather than re-writing the encryption code...