[cryptography] Mixing RdRand with other CPU-based entropy sources?

Joachim Strömbergson Joachim at Strombergson.com
Thu Dec 19 03:19:03 EST 2013


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Aloha!

Here is a question: If we (barely) trust RdRand enough to use it as an
entropy source in combination with another source to feed our RNG -
would it be wise to use another CPU-based entropy source such ad Haveged
[1], DakaRand [2], Jytter [3] or the CPU Jitter Random Number Generator
[3] by Stephan Müller? Or should the second one alway be a CPU-external
source?

A tengential question - is running these entropy sources ([1]..[2]) in
parallel a good idea?
	

[1] http://www.issihosts.com/haveged/
[2] http://dankaminsky.com/2012/08/15/dakarand/
[3] http://jytter.blogspot.se/
[4] http://www.chronox.de/

- -- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
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