/dev/random entropy calcs - patch [not related to net devices]
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Quoted 3 lines · Alex Bligh - linux-kernel
2. Anyone have any problem changing
fs/proc/proc_misc.cto register/proc/interruptsto be 0600 instead of 0644 to help prevent entropy attacks that way?
Yes, i don't want to have to switch to root to read /proc/interrupts because some people have gone utterly paranoid about an attack that's not feasable if you reseed your randum numbers normally at boot.