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LCE: Don't play dice with random numbers

LCE: Don't play dice with random numbers

Posted Nov 20, 2012 19:48 UTC (Tue) by nim-nim (subscriber, #34454)
Parent article: LCE: Don't play dice with random numbers

> rngd[1938]: Error reading from TPM, no entropy gathered
> rngd[1938]: No entropy sources working, exiting rngd

Seems the tpm part is not foolproof yet. And me foolishly thinking I could use this chip for something at last…


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LCE: Don't play dice with random numbers

Posted Nov 20, 2012 20:40 UTC (Tue) by nock (subscriber, #46168) [Link]

Agreed. rngd used the TPM one time successfully, now it's reporting the same message.

LCE: Don't play dice with random numbers

Posted Nov 21, 2012 0:59 UTC (Wed) by hpa (subscriber, #48575) [Link]

The right solution for TPM usage is the tpm-rng module which is coming in Linux 3.7. In the meantime, you may have to check to see if you have tcsd running (which conflicts with rngd if tpm-rng is not available.)

LCE: Don't play dice with random numbers

Posted Nov 21, 2012 6:22 UTC (Wed) by nim-nim (subscriber, #34454) [Link]

nope, no tscd running (or installed)

3.7.0-0.rc6.git1.1.fc19.x86_64

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