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This is rather implementation dependent. If this is compiled code (and even slightly optimized), I would expect the compiler to perform 'constant propagation'; that is, it would notice that j always has the value of zero, and so remove j (and effectively replace all instances with 0); of course, those 0's would be subject to even more optimizations (for ...


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In case you are still wondering, the answer to this question is "Yes". DES can also be targeted by the same sort of attack. This was actually already almost entirely done against DES in a paper from 2006, by F. Amiel, C. Clavier and M. Tunstall called "Fault analysis of DPA-resistant algorithms", you can look at section 6 and the next ones, in which they ...


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