LCE: Don't play dice with random numbers [LWN.net]

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…

LCE: Don't play dice with random numbers

Posted Nov 21, 2012 0:59 UTC (Wed) by hpa (guest, #48575) [Link] (1 responses)

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