3 ms·
It doesn't have to work every time, just occasionally (1 in 1,000,000) is enough to introduce an exploitable weakness. So task preemption isn't a problem. XOR
by tlb 13y ago
It doesn't have to work every time, just occasionally (1 in 1,000,000) is enough to introduce an exploitable weakness. So task preemption isn't a problem.
XOR is used for entropy calculation in the Linux kernel, as Dale Emmons points out in the article.
- raverbashing 13y ago> So task preemption isn't a problem Yeah, you're just crashing a different task > XOR is used for entropy calculation in the Linux kernel You sound like you don't know C, less alone have any knowledge of assembly language. That phrase is correct but absolutely useless. Do you know how that code snipped is translated to assembly? On x86? On x64? With optimisations? Without? How different OSs would use RdRand?