Messages in this thread | | | Date | Thu, 12 Sep 2013 22:13:49 -0400 | From | Theodore Ts'o <> | Subject | Re: TPMs and random numbers |
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On Thu, Sep 12, 2013 at 06:23:09PM -0400, Jörn Engel wrote: > It is worse in three ways: > - it costs performance, > - it may create a false sense of safety and > - it actively does harm if we credit it as entropy. > > How much weight you assign to each of those is up to you. So long as > we don't credit any of it as entropy, I am not too adverse to mixing > it in. But I can equally see benefit in burning the bridges.
Well, mixing it in and using /dev/[u]random is certainly better than blindly using the output from the RNG from the TPM directly as a key.
I'm not sure what you mean by "burning the bridges"; what is the alternative that you are suggesting?
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