Signing keys on a low-entropy system

Johannes Zarl johannes at
Fri Nov 8 00:11:38 CET 2013


I'm currently thinking about using a raspberry pi as a non-networked stand-
alone system for signing keys. Since I haven't heard anything to the contrary, 
I'm pretty sure that entropy is relatively scarce on the pi.

How is GnuPG affected by such a low-entropy system? Will operations just take 
a bit longer, or can this affect the quality/security of generated keys or 

I heard that low entropy or a bad entropy source is generall less of a problem 
for RSA. Is this true? Does this affect me in practice?


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