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Don't let rngd read /dev/tpm0.

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Only one process can interact with the TPM module and
that process should be tcsd.  The tpm_rng kernel module
should instead be loaded and /dev/hwrnd be used to
read the TPM random generator.
Also, log which random generator devices are used by
rngd on startup.
This commit is contained in:
Alexander Kjeldaas
2014-04-22 14:05:09 +02:00
parent e5ccb41f6f
commit 64311899db
1 changed files with 1 additions and 1 deletions
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nixos/modules/security/rngd.nix
+1 -1
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@@ -30,7 +30,7 @@ with lib;
description = "Hardware RNG Entropy Gatherer Daemon"; description = "Hardware RNG Entropy Gatherer Daemon";
serviceConfig.ExecStart = "${pkgs.rng_tools}/sbin/rngd -f"; serviceConfig.ExecStart = "${pkgs.rng_tools}/sbin/rngd -f -v --no-tpm=1";
restartTriggers = [ pkgs.rng_tools ]; restartTriggers = [ pkgs.rng_tools ];
}; };